Can someone help? Please show work for each one!

Can Someone Help? Please Show Work For Each One!

Answers

Answer 1

Answer:

2)====We assume you are converting between moles CaCl2 and gram. You can view more details on each measurement unit: molecular weight of CaCl2 or grams This compound is also known as Calcium Chloride. The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles CaCl2, or 110.984 grams

110.98 g/mol

The molar mass of CaCl2 is 110.98 g/mol.

3)The molar mass of Na3 PO4 is 163.9 g/mol. To determine the molar mass, add the atomic mass of all the atoms.


Related Questions

no.of elements in KMnO4​

Answers

Answer:

3 three

Explanation:

potassium (K), manganese (Mn), and oxygen (O).

Answer:

3 different elements (7 in total as there are 4 oxygens (The answer is either one of these))

Explanation:

H2CO: → H2O + CO2
Answer the following question about the equation above.
1. How many atoms of Hydrogen are in the reactant?
2. How many atoms of Carbon are in the reactant?
3. How many atoms of Oxygen are in the reactant?
4. How many atoms of Hydrogen are in the product?
5. How many atoms of Oxygen are in the product?
6. How many atoms of Carbon are in the product?
7. Does the number of atoms of each element on the reactant side match that of the product side?

Answers

Answer:

1) 2

2) 1

3)1

4) 2

5)3

6)1

7)yes except Oxygen

Which statement describes sunspots? A.Sunspots have a bright white appearance. B.Sunspots occur in the radiative zone of the sun. C.Sunspots occur in areas of extremely low magnetic fields. D.Sunspots have lower temperatures than their surroundings.

Answers

Answer:

The statements that describe sunspots is;

D. Sunspots have lower temperatures than their surroundings

Explanation:

Sunspots is a phenomenon that involves temporary appearance of dark areas on the Sun's surface, which are regions of concentrated magnetic field flux which inhibit heat transfer by convection and are therefore cooler than other parts of the Sun. Due to the presence of magnetic field magnetic  

Sunspots are temporary phenomena on the Sun's photosphere that appear as spots darker than the surrounding areas. They are regions of reduced surface temperature caused by concentrations of magnetic field flux that inhibit convection. Opposite magnetic polarity sunspots usually appear as a pair.

Therefore, the statement that best describe sunspots is that a sunspot is a region of reduced temperature compared to surrounding areas on the Sun's surface.

NEED ANSWERS NOWWWWW​

Answers

Answer:

Explanation:

Observation 1 is correct because the crystals are just turning into water. They can be frozen back.

A material in which electrons are able to move easily or freely is a(n)
A none of these
В electric field
C insulator
D conductor​

Answers

Answer:b

Explanation:

If you have 12 atoms of hydrogen before a chemical reaction, how many atoms of hydrogen will be present after the chemical reaction?

Answers

12 because they just don’t disappear I forgot what the rule is called tho

Answer:

it is 12

Explanation:

because matter can put be created or destroyed

in an electroplating apparatus, where does the oxidation reaction occur?

a. on the surface of the battery

b. on the surface of the cathode

c. in the solution

d. on the surface of the anode

Answers

Answer:

I believe it’s on the surface of the anode!

Explanation:

Electroplating apparatuses are the devices used in the electroplating of metals. The oxidation reaction occurs on the anode of the plate. Thus, option d is correct.

What is oxidation?

Oxidation is the process of the redox reaction in which the atoms or the ions lose their electron to the positive anode. The negative of the ionic species gets attracted to the positive of the anode.

The negative ions act as charges deposited on the positively charged anode and conduct electric current. The oxidation of the species will always occur at the anode of the electrochemical cell.

Therefore, option d. oxidation occurs at the surface of the anode.

Learn more about oxidation and anode here:

https://brainly.com/question/487986

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During
the
school
year,
1.3
x
102
students
participate
in
football,
and
.5
x
102
participate
in
soccer.

What
is
the
total
number
of
students
that
participate
in
football

Answers

If I understood question correctly,
football 1.3 • 102=132.6
Answer is 132 students participate in football.

How many moles are in 8.3 x 10^23 molecules of H2O?

Answers

Answer:You multiply avogadro's number to what you were given.

8.30x10^23 * 6. 0221409x10^23

=1.357*10^25

Explanation:

Graduated cylinder‘s

Answers

The fourth option, the only thing changing is the container size. Not the mass or volume of the liquid


A scientist is designing a device that will kill harmful cells in the human body using high-energy waves. Which type of wave would be most effective
А
X-rays would be the best choice because they have a long wavelength and a low frequency
accomplishing this goal?
B
Radio waves would be the best choice because they have a long wavelength and a low frequency
Gamma rays would be the best choice because they have a short wavelength and a high frequency
D
Infrared waves would be the best choice because they have a short wavelength and a high frequency
C2021 Illuminate Education Inc.
Tin
Type here to search
O
BH

Answers

Answer:

gamma rays

Explanation:

gamma Ray's have the highest frequency

What does a positive H look like on a potential energy diagram?

Answers

Answer:

D because i did this last week and got it right.

A positive H indicates that the potential energy of products is higher than the potential energy of reactants.

What is a potential energy diagram?

A potential energy diagram is a diagram which shows the energy content of reactants and products as well as the energy changes that occur in a reaction.

A positive H in a reaction indicates that the reaction is endothermic and that products have a higher potential energy than reactants.

Therefore, a positive H indicates that tje potential energy of products is higher than the potential energy of reactants.

Learn more about potential energy of a reaction at: https://brainly.com/question/12798587

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Which of the following uses electrical energy?
A washing machine
The sun
A plant
A cat

Answers

Answer:

★ B. A washing machine.

Explanation:

What's Electrical energy?

Electrical energy is energy derived from electric potential energy or kinetic energy. When used loosely, electrical energy refers to energy that has been converted from electric potential energy.

What is the mass of an object with a net force of 10 N accelerating at 2 m/s^2??

Answers

Answer:

5kg

Explanation:

Force = Mass x acceleration

F = ma

m = F/a = 10N/2m/s^2

m = 10/2 = 5kg

The standard unit for mass = Kilogram


Based on this diagram, which type of stars would belong to spectral class M and have the
highest luminosity?

Answers

Answer:J , the answer is super giants

How does the rate of a chemical reaction change if the concentration of both reactants increases 4 times?

2NO + O2 → 2 NO2

Answers

Answer: The rate will increase 32 times if the concentration of both reactants increases 4 times

Explanation:

Rate law says that rate of a reaction is directly proportional to the concentration of the reactants each raised to a stoichiometric coefficient determined experimentally called as order.

For the reaction : [tex]2NO+O_2\rightarrow 2NO_2[/tex]  [tex]rate=k[NO]^2[O_2]^1[/tex]  

k= rate constant

order with respect to [tex]NO_2[/tex] = 2

order with respect to [tex]O_2[/tex] = 1

Thus on increasing the concentration of reactants 4 times :

[tex]rate'=k[4\times NO]^2[4\times O_2]^1[/tex]

[tex]rate'=k\times 8\times 4\times [NO]^2\times [O_2]^1[/tex]

[tex]rate'=32\times rate[/tex]

Thus rate will increase 32 times if the concentration of both reactants increases 4 times

Magnetic poles are called domains.
True
False

Answers

Answer:

false

Explanation:

the magnetic domains in the area around a magnet where the force acts.

What volume, in liters, of 0.500 M HNO3 is necessary to react with 25.0 mL of 0.0500 M Ca(OH)2 solution to the endpoint? HNO3 + Ca(OH)2. --> Ca(NO3)2 + H2O

Answers

Answer:

0.00500L are necessaries

Explanation:

Based on the balanced chemical reaction:

2HNO3 + Ca(OH)2. --> Ca(NO3)2 + 2H2O

2 moles of nitric acid react with 1 mole of calcium hydroxide

To solve this question we must find the moles of Ca(OH)2. Then, convert this moles to moles of HNO3 using the chemical reaction and to liters:

Moles Ca(OH)2:

0.025L * (0.0500mol / L) = 0.00125 moles Ca(OH)2

Moles HNO3:

0.00125 moles Ca(OH)2 * (2 moles HNO3 / 1mol Ca(OH)2) = 0.0025 moles HNO3

Liters HNO3:

0.0025 moles HNO3 * (1L / 0.500moles) = 0.00500L are necessaries

How to determine the relative rates of reactant disappearance and product appearance using reaction stoichiometry

Answers

Answer:

For example, the relative rate of a reaction at 20 seconds will be 1/20 or 0.05 s -1, while the average rate of reaction over the first 20 seconds will be the change in mass over that period, divided by the change in time.

Explanation:

Hope it helps u

FOLLOW MY ACCOUNT PLS PLS

state ay three ways of increasing solubility

Answers

Increasing temperature
Pressure
Molecular size
Speed of stirring

in what order were the sun and earth created according to both the younger theory and the older theory

Answers

answer: the earth orbits around the sun for 365 while getting older to the young theory.

Answer:

The older theory was that the sun (and other planets) revolved around earth and the new theory is that the earth (and other planets) revolved around the sun.

Explanation:

What does this image represent?

A. Linear molecule with one domain
B. Linear molecule with two domains
C. Tetrahedral molecule with four domains
D. Trigonal planar molecule with three domains

Answers

Answer: A.

Explanation:

Answer:

A. Linear molecule with one domain.

Hope this helps! :)

Explanation:



If a sample of oxygen gas has a pressure of 810 torr at 298 K, what will be its
pressure if its temperature is raised to 330K?

Answers

Answer:

The pressure is = 897 torr

Explanation:

TRUE or FALSE: Traits that an organism has can be influenced by factors in the environment.

Answers

Answer:

True

Explanation:

Hope this helps

true. hope this helps have a good day

6th grade science Major grade plz help ASAP

Answers

Answer: An organism is part of a community

4. Calculate the heat energy needed to heat 25.0 g of water from 13.0°C to 18.0°C. Use chart above for specific heat of water. Use units and show all work.​

Answers

Answer: I go search some information

Explanation:I come back with a answer

number of elments in hcooh

Answers

3 elements are present in HCOOH - hydrogen, oxygen, and carbon.

PLEASE HELP AND DONT YOU DARE GIVE ME THE LINK

The fact that animals are the only kingdom that has muscle tissue demonstrates a contrast between which of the
following?
animals and humans
animals and protozoans
animals and other living things
animals and insects

Answers

Answer:

animals and other living things

Explanation:

All living organisms have been classified and grouped into a hierarchical system of classification. Kingdom is the highest level in this system comprising of 6 other levels. However, there are different kingdoms that harbors different organisms. The kingdoms are: animalia, plantae, protista, monera, fungi etc.

However, among other kingdom of organisms, organisms in the Kingdom Animalia are the only ones that possesses muscle tissues etc. This shows a contrast between animals and other living things.

which star is mostly like Earth's sun? A)Blue Giant B) Red Giant C) Main sequence D) White Dwarf?​

Answers

Answer:

C) main sequence

Explanation:

Currently, the Sun is a main sequence star. In roughly 5 billion years from now, the Sun will transition into a red giant.

why is pluto classified as a dwarf planet?

Answers

Answer:

pluto is considered a dwarf planet because it did not meet the three criteria the IAU uses to define a full sized planet

Explanation:

Other Questions
A rifle fires a pellet straight upward, because the pellet rests on a compressed spring that is released when the trigger is pulled. The spring has a negligible mass and is compressed by from its unstrained length. The pellet rises to a maximum height of 6.10 m above its position on the compressed spring. Ignoring air resistance, determine the spring constant. PQRS is a parallelogram with PQ=26cm and QR=20cm . If the distance between the longer-sides is 12.5cm , Find Mrs. Miller and 8 of her closest friends are taking aYoga class. The total cost for the class is $78.75.Write and solve a multiplication equation to showthe cost per person for the Yoga class. interest earned on both the principal and any previously earned interest?a. compound interestb. simple interestc. interest rated. principal Mr. Gordon is looking to buy a boat. The boat has to fit in his garage for winter storage. To fit in the garage the boat cannot be longer than 21 feet. Which is the longest boat that Mr. Gordon can purchase? A) 6 yardsB) 7 yardsC) 8 yardsD) 9 yards subtract the fractions7/39 1/42 Describe the error in the work shown. A criminal complains that he has been given a sentence that is far too severe for the crime he has committed. His lawyer argues that this goes against his rights as defined by the Bill of Rights. Which amendment would the criminal's lawyer use to prove that his client's rights were violated, and how would he use it? ANSWER FAST PLEASE Beth purchased her car for $18,400. Three years later the car was worth $15,200. Find the percent change in the value of her car. (F)x= -4x^2 - 8x - 8 find -3 f(-1) What is the middle value of the following data set? 33, 36, 24 31, 39,44,32 When the product of 6 and the square of a number is increased by 5 times the number, the result is 4. Select all of the values that the number could be. A physicist at a respected research laboratory reports a startling newdiscovery. Her conclusions are based on data from many trials. However,other scientists are unable to reproduce the results of the experimentWhich statement tells why the original experiment might be faulty?A. The conclusion are based on multiple trialsB. The results are announced to the publicC. Experimental results cannot be producedD. The experiment does not include sophisticated equipment Was there a conflict between the culture* of India and the culture* of Britain? Please help me Grade is 6th or 7th Select the correct order of adjectives for the sentence. In three sentences, describe who is going where, and what they are going to do there.Example: Voy al mercado y voy a comprar la comida.*Note: This is a practice activity. Completing this activity will not only prepare you for future tests and assessments but, more importantly, it will enhance your language ability. This activity will not count towards your grade. Expand and Simplify: (x-5)(x+7) What is ecological succession? Choose the BEST answer. A. how animals evolveB. how environments evolveC. how plants evolve 2) A 0.4 kg ball moves in horizontal circle of radius 3 mat speed of 100m/s. Whatis the centripetal force?file the