ASAP PLEASE I NEED TO BALANCE THEM PLZ HELP IM FAILING THANKS ILL GIVE BRAINLIEST

ASAP PLEASE I NEED TO BALANCE THEM PLZ HELP IM FAILING THANKS ILL GIVE BRAINLIEST

Answers

Answer 1

Answer:

4H₂O(l) → 4H₂(g) + 2O₂(g)

Balancing equations

1. 3Fe(s) + 4H₂O(g) → Fe₃0₄(s) + 4H₂(g)

2. 2AlBr₃(aq) + 3Cl₂(g) → 2AlCl₃(aq) + 3Br₂(l)

3. 2HNO₃(aq) + Ba(OH)₂(aq) → Ba(NO₃)₂(aq) + 2H₂O(l)

4. 2Al(s) + 3Pb(NO₃)₂ → 2Al(NO₃)₃(aq) + 3Pb(s)

5. 3NaOH(aq) + Fe(NO₃)₃ → Fe(OH)₃(s) + 3NaNO₃(aq)

Explanation:

From the question given, I have been able to balance the chemical equations correctly.

In balancing chemical equations, the chemical equation must have equal number of atoms for each element that are both in the reactant side and in the product side.

For the above to be achieved, the number of atoms in each element will have to be multiplied and added.

A look at the balanced chemical equation above, you will discover that each element has the same number of atoms both in the reactant side and in the product side.


Related Questions

Describe the relationship between frequency and wavelength in your own words

Answers

Are frequency and wavelength the same thing? No, they are not the same but each is mathematically related to the other. Effectively, the wavelength is the distance between one wave peak and the next wave peak, or in other words, the distance between one wave high point and the next high point. Alternatively it could of course be said that wavelength is the distance between one wave low point and the next wave low point, but lets not get pedantic about it.

Think of waves in the ocean where a person may be observing the top of one wave and the top of the next wave. The wavelength is the distance between these two wave tops, or peaks. With waves in the ocean, the frequency of the waves will be the number of times that a wave peak crosses any given point on the ocean. It is probably easiest to measure frequency of waves from the ocean by standing on the beach and counting how many waves come up on the sand relative to any given time frame. Frequency is typically measured in how many waves per second but with ocean waves we are better to measure how many waves per minute because naturally the frequency will be less than one per second.

There is actually quite a bit of science over how ocean waves travel around our planet because high and low tide in the ocean are created by the moon. There is a theory that the moon creates waves that have a wavelength equal to half of the circumference of planet Earth. This is because there is a high tide at Earths point that is closest to the moon and then another high point that is at the greatest distance from the moon. The problem is that to keep up with the moon one needs to travel around the Earths equator at about 1800 kph, which is impractical for an ocean wave because they quite simply cannot travel at that fast a speed or velocity (technically angular velocity). This is what causes ocean waves to become so messy at times.

When discussing waves, most people are most comfortable discussing electromagnetic waves because almost all communication systems relied on in modern society are based on these waves and their frequency. When collecting electromagnetic waves, like TV waves, for example, there are several components to the antenna. One of them will typically have a loop of metal, which is where the required energy waves (carrying the required signal) are picked up or collected by the antenna. Don’t worry about the other components of the antenna because most are there simply to remove unwanted background waves that may spoil the quality of the signal that we collect. With the TV antenna, the distance across this “collection loop” is the wavelength that the antenna is tuned to collect.

The reason for a loop on the piece of metal that collects TV waves, rather than using a straight piece of wire, is so that all wavelengths that are close to the required one, will be collected. To get slightly more technical, in modern systems we have “frequency modulation”, which is what FM stand for. This means we deliberately make minor adjustments to the precise frequency, but I better not go into that.

The frequency of a TV wave that is being collected is the number of times in any time frame, that a wave front or wave peak, will cross the collection point. With typical electromagnetic waves like TV waves, we use a frequency that is measured to be so many Hertz. The Hertz is the standard measure of such things and it is equal to a number of wavelengths per second. The reason for this is that electromagnetic waves travel at the speed of light, which is incredibly fast.

If we are talking in the old fashioned “long wave” AM radio waves, then the wavelength is often several hundred metres in length. In Melbourne, Australia, the nearest large city to my home, the government owned ABC used a frequency of 774 kHz for many decades. They still do in fact, although most people tuned in probably rely on a repeater station these days and these will broadcast in a higher frequency. 774 kHz is a frequency of 774 thousand cycles per second. This sounds like a high frequency when compared to most other waves, even sound waves, yet because radio waves travel so fast, the wavelength is slightly greater than 387 metres in wavelength, which is almost 424 yards in wavelength.

When comparing wavelength to frequency, one is the inverse of the other so this means that the higher the frequency, the shorter the wavelength, with the rate of travel (velocity) being the factor that determines what sort of figures we come up with when comparing one to the other.
6.3K viewsView 3 Upvoters
Sponsored by businesstips

A breeder reactor is one type of nuclear reactor. In a breeder reactor, uranium-238 is transformed in a series of nuclear reactions into plutonium-239.

The plutonium-239 can undergo fission as shown in the equation below. The X represents a missing product in the equation.

Compare the amount of energy released by completely fissioned plutonium-239 to the amount of energy released by the complete combustion of the same amount of coal.

Answers

Answer:hope this help

Explanation:

why is hardness important in identifying minerals

Answers

hardness plays a major role in identifying a mineral. it can make the identification process much simpler by considerably narrowing a search. hardness is defined by how well a substance will resist scratching by another substance.

Radiation can travel through A. liquids B. gases C. empty space D. all of these​

Answers

Answer:

Liquids

Explanation:because animals like dolphins use sound radiation under water to hear each other

Answer:

D. all of these.

Explanation:

it can travel through solids, liquids, and gasses.

photosynthesis uses all of the following except __ to make food ?

Answers

what are the options

Which of the following is a monoatomic molecule? *



Phosphorus

Sulphur

Neon
chlorine

Answers

phosphorus

Explanation:

other are diatomic

Cl2

S2

Ne2

what is the cost of an ounce of uranium

Answers

Answer:

search it up

Explanation:

$320.00 per ounce of uranium

How many moles and atoms are there in 60 grams of Calcium?

Answers

Answer:

The moles present in 60 g of calcium are 1.5 moles.

Answer:

In 60 grams there are 1,5 mols

Explanation:

Many angiosperms rely on animals for

Answers

Many angiosperm species rely on the interaction between animals and their flowers for reproduction. As insects, birds or other animals move from one flower to another feeding on nectar, they commonly distribute pollen from flower to flower as they go which leads to plants being pollinated and seeds to be produced.

How many electrons does H have with a -1 charge

Answers

Answer:The electron has a negative charge and the proton has a positive charge, and these charges work against each other to make the electromagnetic force that holds the entire atom together.

Explanation:

This is the answer


6. What is the molecular formula for this compound? The compound's empirical formula and
molar mass is given. CH20, 120g/mol

Answers

Explanation:

A compound's empirical formula tells you the smallest whole number ratio ,The molar mass tells you what the total mass of one mole

“Copper pots are the best pots for cooking food quickly.” Which term best describes this statement?

Answers

Answer:

because I make eggs and they taste delicious

Answer:

Conclusion

Explanation:

What happens to a cell when it's in different environments?

Answers

The environments in which cells grow often change rapidly. Chemicals that could pass into cells, either by diffusion through the cell membrane or by the action of transport proteins, and could bind directly to proteins inside the cell and modulate their activities.

The temperature at which the motion of particles theoretically ceases is..
A. 0 K
B. 0°C
C. -273 K
D. 273°C

Answers

The answer would be C because -300 + 27 = -274

What kind of cell has a nonspontaneous voltage?
An electrolytic cell
A dry cell
A wet cell
A voltaic cell

Answers

Answer:

dry cell

Explanation:

because it stops when salt distribution becomes equal as bridge is not added

Answer:

a

Explanation:

a p e x :)

is boiling a physical, or chemical change?(Worth 50 POINTS!)

Answers

Answer:

It is a physical change, because you DID NOT chemically change the waters compound just by boiling it.

Explanation:

I hope this helps!

Answer:

Boiling is a physical change!

(Edited bc the person who commented told me it was physical and not to make anyone being confused when the look at this post so... yeah)

How many moles are in 43.5 g of sodium hydroxide (NaOH)?

Answers

Answer:

1.09 moles of NaOH

Explanation:

First of all, to calculate moles, you need to find the molar mass of NaOH.

Let us first find the molar mass of NaOH then.

Na = 23.0 amu

O = 16.0

H = 1.0

They are 1 nitrogen atom, 1 oxygen atom, and one hydrogen atom.

So do this.

23.0(1) + 16.0(1) + 1.0(1) = 40 g/mol.

Now use dimensional analysis to show your work

43.5 g of NaOH * 1 mol of NaOH / 40 g/mol of NaOH

The grams cancel out.

43.5 / 40.0 = 1.0875

Use sig figs and round the answer to the nearest hundredths place.

1.0875 = 1.09

So the final answer is 1.09 moles of NaOH

Hope it helped!

*
Why does the mass of a substance remain the same after a chemical reaction?

Answers

ANSWER: because they are not created or destroyed they are just rearranged to form the products

Applying a force for a longer time increases the change in
(select all that apply)
Weight
Gravity
Velocity
Mass
Momentum

Answers

Answer:

velocity and momentum

Explanation:

as you exert force, the object accelerates, hence, its velocity increases.

since momentum is mass times velocity, the momentum increases too

Please be reminded, this answer may not be 100% correct

When the force should be applied for a long time so it increases the change in velocity and momentum

What is velocity and momentum?

The momentum of the object should be equivalent to the object mass times with the object velocity

Here

p = mv

Here p means momentum

m means mass

v means velocity

Here the momentum should be directly proportional to the mass of the object and for the velocity of the object also.

Learn more about mass here: https://brainly.com/question/1381544

Write the following numbers in scientific notation: a) 0.0006730 b)50000.0 c)0.000003010 d) 132.40 e)2232​

Answers

Answer:

a)6.730×10⁻⁴

b)5×10⁴

c)3.010×10⁻⁶

d)1.3240×10²

e)2.232×10³

The given numbers in scientific notation are [tex]6.730 \times 10^{-4}[/tex], [tex]5.0 \times 10^4[/tex], [tex]1.3240 \times 10^2[/tex],  [tex]2.232 \times 10^3[/tex] and  [tex]2.232 \times 10^3[/tex], respectively.

Scientific notation is a way of expressing very large or very small numbers in a compact and convenient form.

To express a number in scientific notation, we need to write the number in the form: [tex]\rm a\times 10^b[/tex]

a) 0.0006730 can be written in scientific notation as [tex]6.730 \times 10^{-4}[/tex]. The decimal point was moved 4 places to the right, so the exponent is negative 4.

b) 50000.0 can be written in scientific notation as [tex]5.0 \times 10^4[/tex]. The decimal point was moved 4 places to the left, so the exponent is positive 4.

c) 0.000003010 can be written in scientific notation as [tex]3.010 \times 10^{-6}[/tex]. The decimal point was moved 6 places to the right, so the exponent is negative 6.

d) 132.40 can be written in scientific notation as [tex]1.3240 \times 10^2[/tex]. The decimal point was moved 2 places to the left, so the exponent is positive 2.

e) 2232 can be written in scientific notation as [tex]2.232 \times 10^3[/tex]. The decimal point was moved 3 places to the left, so the exponent is positive 3.

Therefore, [tex]6.730 \times 10^{-4}[/tex], [tex]5.0 \times 10^4[/tex], [tex]1.3240 \times 10^2[/tex],  [tex]2.232 \times 10^3[/tex] and  [tex]2.232 \times 10^3[/tex], are the scientific notation for the given numbers.

Learn more about Scientific notation here:

https://brainly.com/question/19625319

#SPJ6

Please help me 14 points!

Answers

Answer:

2

Explanation:

Increasing the temperature of a given amount of gas at constant volume causes the pressure to increase because of _____.
1. there is less space where the molecules can move around
2. there are more molecules
3. the molecules are striking a larger area with less force
4. the molecules are moving more quickly

Answers

Um im pretty sure it would be the 4th one. Sorry if im wrong

1) A chemist was deciding what chemical to use in a handwarmer. She studies 2 compounds. One is a nonpolar covalent compound that is safe and nontoxic. The other is an ionic compound. It is poisonous if ingested. What tests could she do to tell them apart? Give two possible observations or tests she can run to verify the substance. Which substance would you use to make the handwarmer and why?

Answers

Answer:     Water dissolves nonpolar covalent  substances.

The Nonpolar substance which is nontoxic is better material to be used in making the hand warmers.

A hand warmer is a little substance which can be put in between the hands in order to heat them up. This is particularly of necessity in the cold weather when the hands are cold.

The chemist can distinguish the polar substance from the nonpolar substance by dissolving each substance in water. The polar substance will dissolve in water while the non polar substance will not dissolve in water.

Secondly, the two substances can be heated and the melting temperatures are observed. The ionic substance will melt at a much higher temperature than the nonpolar substance. The Nonpolar substance which is nontoxic is a  better material to be used in making the hand warmers.

Learn more about ionic compounds: https://brainly.com/question/9167977

the first stage of an blank is when clouds form; this is the cumulus stage

Answers

Answer:

thunderstorm

Explanation: The cumulus stage is the first stage in a thunderstorm and it involves clouds forming. We see the cloud that will become a thunderstorm as it is starting to form and grow. This is due to the rising levels of thermal energy.

Newton wrote the mathematical concepts to prove the _____ shape of planet’s orbits.
spherical
circular
triangular
elliptical

Answers

Answer:

Eliptical

Explanation:

While some orbits may seem circular, like Earth's, it is still an ellipse. Planets orbit stars in an elliptical shape, but some come very close to perfect circles. As for the other two, im certain you have never seen a triangular or spherical orbit. Hope this helps.

you can't change or add________!you can only put number in front of the elements or compound.​

Answers

I think subscripts?....

How many atoms of oxygen are in 566 g of glucose? * How many molecules are there in 43 grams of sodium hydroxide? * How many atoms of fluorine are in 5.5 x 10^24 molecules of sulfur hexafluoride? *

Answers

Answer:

See explanation

Explanation:

Number of moles of glucose in 566g = 566g/180g/mol = 3.14 moles

Number of moles of oxygen atoms in 1 mole of glucose= 6 * 16g/16g/mol = 6 moles.

There are 6 moles of oxygen in 1 mole of glucose

x moles of oxygen is therefore present in 3.14 moles of glucose

x = 6 * 3.14/ 1 = 18.84 moles of oxygen

1 mole of oxygen  contains 6.02 * 10^23 atoms of oxygen

18.84 moles of oxygen contains 18.84 *  6.02 * 10^23 atoms = 1.14 * 10^25 atoms of oxygen.

Number of moles of sodium hydroxide in 43g of NaOH = 43g/40g/mol = 1.075 moles

1 mole of NaOH contains 6.02 * 10^23 molecules of NaOH

1.075 moles of NaOH contains 1.075 moles  * 6.02 * 10^23 molecules / 1 mole of NaOH = 6.47 * 10^23 molecules of NaOH

Number of moles of atoms fluorine in SF6 = 6 * 19 g/19 g/mol = 6 mole of F atoms

1 mole of SF6 contains 6.02 * 10^23 molecules of SF6

x moles of SF6 contains 5.5 x 10^24 molecules of SF6

X = 5.5 x 10^24 molecules * 1/ 6.02 * 10^23 molecules

X = 9 moles of SF6

If 1 mole of SF6 contains 6 atoms of F

9 moles of SF6 will contain 9 * 6/1 = 54 atoms of F

Please help me! Thank you

Answers

Answer:

Elements

Explanation:

Atomic number is a property of elements

All atoms of oxygen have the same mass number. True or False

Answers

Answer:

pretty sure it's false

Explanation:

hope this helps!

False all atoms of oxygen do not have the same mass number.0

can someone show me the work on 3-8?

Answers

3. 426 g

4.  413.4 g

5. 1328.4 g

6. 192.4 g

7. 106.4 g

8. 0.617 mol

Further explanation

Given

moles and mass

Required

Conversion mole to gram

Solution

General formula :

mole (n) = mass : MW

3. 6 moles Cl₂(MW = 71 g/mol) :

= 6 moles x 71 g/mol

= 426 g

4. 5.3 moles CaF₂(MW=78 g/mol)

= 5.3 mol x 78 g/mol

= 413.4 g

5. 8.2 moles FeCl₃(MW=162 g/mol)

= 8.2 mol x 162

= 1328.4 g

6. 2.6 moles Li₂CO₃(MW=74 g/mol)

= 2.6 mol x 74 g/mol

= 192.4 g

7. 3.8 moles N₂(MW=28 g/mol)

= 3.8 mol x 28 g/mol

= 106.4 g

8. 100 g FeCl₃(MW=162 g/mol)

= 100 g : 162 g/mol

= 0.617 mol

Other Questions
The creation of new crust at the middle of mid-ocean ridges is alsoreferred to as... *A.mountain formationB.sea floor spreadingC.fault formationD.a transform boundary Work out surface area of this sphere give your answer in to 1 DP What are two ways the civil war impact Louisiana economy ? Philip wrote the following inequality on the board:g> 15 Which value for g makes this statement true?A. 17B. 15C. 13D. 10 Help me on this please what is 46274648354846374 times 77466 Read the excerpt from Before Giving to a Charity. Before you donate through an online portal that lets you choose from a list of charities, read the article Donating Through an Online Giving Portal, available at FTC.gov/Charity. It explains how these online giving portals work. What is the meaning of the word portal? a government organization that regulates charitable giving ? a charity that provides technology resources to those in need ?a door or gate that leads to a larger space ?a website that brings together information from multiple sources? Which fraction and decimal forms math the long division problem What is the mass in grams of 0.40 moles of sodium borohydrate NaBH4 AC =Round your answer to the nearest hundredth.?704B translate from english to spanish My name is Jorge. I am 15 years old. I am from Mexico. I like videogames and animals. Also, I like to play sports. When the weather is good, I go to the beach. Sometimes, my friends and I go to the park. We like to skate. When the weather is bad, I play videogames. Also, I relax with my family. Everyday, I do exercise. I am very active. Weathering is a process in the rock cycle. How does weathering contribute to the formation of rocks?answer correctly and ill make you brainliestIt increases the temperature and creates metamorphic rock.It deposits sediment and forms sedimentary rock.It breaks down rock into smaller pieces that can become sedimentary rock.It causes lava to cool and harden into igneous rock. Sally forgot to put her sneakers on before leaving to play at the park. She noticed right away that her feet were becoming very hot due to the pavement. Sally was experiencing the transfer of heat known as... A closed container is the best way to measure the volume of aA. gasB. liquidC. solidD. Both A and B are correct. Which statement would most likely have been made by an American worker in the early 1800s? A. I think I'll get a job in a factory. B. I used to work, but now all the big businesses are closing. C. The only opportunity for me is in farming. D. There are more jobs for me in the West. Helpppppppp I honestly have no clue Help guys I dont know Many African nations have European official languages due to pastexchange of prisoners.o establishment of colonies.o imports of natural resources.O exports of manufactured goods. What caused Ben Barres to begin working for better treatment of women in the sciences?Help!!!! 35 points! If you've had any alcohol, you should wait at least _____ for every drink you've had before you drive. A. fifteen minutes B. one half hour C. one hour D. one hour and a half