Although the order of elements is based on atomic number, vertical families share similar chemical properties.

Question 12 options:
True
False WHAT IS IT

Answers

Answer 1

Answer:

It's true

Explanation:

Uhhh, the internet! lol.

Answer 2

Answer:

It's true, ExplanationVVV

Explanation: Because the order of elements is based on atomic number, vertical families share similar chemical properties.


Related Questions

What is the charge of the nucleus ? Why ?

Answers

Answer:

A nucleus is a positive charge

Explanation:

A nucleus is made up of protons and neutrons. Protons have a positive charge and neutrons have a neutral charge.

PLEASE HELP WITH #3 I WILL GIVE BRAINLEIST!

Answers

Answer:

i thunk venus may be right or wrong tel7

Answer:

saturn:85 minutes

venus: 4.25 minutes

Which properties most likely belong to a metal?
A. brittle and dull
B. liquid and clear
C. ductile and malleable
D. gaseous and unreactive

Answers

The answer is C - ductile and malleable

The properties most likely belong to a metal are ductile and malleable.

What is ductility and Malleability?

Malleability - Those metals that can be beaten into thin sheets with a hammer or any heavy object. For example - Cu, Au etc

Ductility- The property of the metals which can lead the metals to form them into wires.

Conductivity - Conductivity is the measure of the ease at which an electric charge or heat can pass through a material. For example - Metals are good conductors of heat and electrolytic solution is conductors of electricity.

Metals have many other properties including the given above, like sonority,  lustrous surface, very hard etc.

Therefore, The properties most likely belong to a metal are ductile and malleable.

Learn more about Metals here:

https://brainly.com/question/28650063

#SPJ2

Mole Conversions
What is the mass in grams of
0.625 mol Ba(NO3)2?(please show work)

Answers

Answer:

Explanation:

Using the formula as follows: mole = mass/molar mass

Molar mass of Ba(NO3)2

= 137 + (14 + 48)2

= 137 + 124

= 261g/mol

Mole = mass ÷ molar mass

0.625 mol = mass/261g/mol

mass = 0.625 × 261

mass = 163g

3. The air today is approximately one-fifth
oxygen. Calculate the approximate volume of
oxygen in 200cm3 of air.

Answers

Answer: 40cm^3

Explanation:

Since the The air today is approximately one-fifth oxygen, the approximate volume of oxygen in 200cm3 of air would be:

= 1/5 × 200

= 40cm

The answer is 40cm^3

Analyze. This reaction releases energy as heat. Explain whether the reaction is exothermic or endothermic and whether it obeys the laws of Conservation or energy

Answers

Answer:

See explanation

Explanation:

If heat is given out in a reaction, then that reaction is exothermic. If heat is absorbed in a reaction, then that reaction is endothermic.

Hence, if heat is given out, the reaction is exothermic. The heat given out does work on the surrounding thus the laws of conservation of energy are obeyed.

Answer:

The reaction is exothermic.

Explanation:

I took the test

Rico is doing an experiment. He makes a solution of calcium carbonate in a beaker of 200 mL of water at room temperature (25 °C). He adds a small amount of lemon juice to the solution and a chemical reaction begins. Rico reduces the temperature of the solution by 10 °C by adding ice. As the solution cools, what will happen to the chemical reaction?

Answers

The question is incomplete, the complete question is;

Rico is doing an experiment. He makes a solution of calcium carbonate in a beaker of 200 mL of water at room temperature (25 °C). He adds a small amount of lemon juice to the solution and a chemical reaction begins. Rico reduces the temperature of the solution by 10 °C by adding ice. As the solution cools, what will happen to the chemical reaction?  

A. The chemical reaction will stop suddenly.

B. There will be no change in the rate of the chemical reaction.

C. The chemical reaction will slow as the water cools.

D. The speed of the chemical reaction will increase as the water cools.

Answer:

C. The chemical reaction will slow as the water cools.

Explanation:

The rate of a chemical reaction is dependent on the temperature of the reaction system. This derives directly from the collision theory of chemical reaction.

The higher the temperature of the system, the more frequently the particles collide and the faster the rate of reaction.

As the temperature is decreased, the rate of reaction decreases simultaneously. Therefore, as Rico decreases the temperature from 25 degrees to 10 degrees, the rate of reaction decreases accordingly.

I don't really understand this worksheet question.​

Answers

25/2 and 96/X
CROSS MULTIPLY.

2x=2,400.
divide by 2.
x=1,200.

you take the GIVEN MASS of an element, and you put it on top, the coefficient is what it’s over. i believe this is right

CARDS
In a science experiment, Marisa concludes that no chemical reaction has occurred. What evidence would support
this conclusion?

A. the mass and total number of atoms were conserved
B. no energy were released
C. a new element was created
D. no new substance was formed

Answers

Answer:d

Explanation:

Please help me with this question please!!!
Look at the picture provided and answer the question

>>Select one only.
Q:An aromatic hydrocarbon is represented by which structural formula?
>>Choose one answer from the picture below that answers the question above
A
B
C
D

Answers

Answer:

A

Explanation:

I looked up aromatic hydrocarbon and this one looks like a replica of benzene


What is the relationship between an object's mass and its ability to pick up speed, or accelerate?

Answers

Answer:

It is momentum

Since momentum is proportional to the product of mass and velocity

Answer:

The greater the object's mass, the longer it takes to pick up speed or accelerate. There is an inverse relationship between mass and acceleration/picking up speed.

Explanation:

what percent of the sun's energy is used by the living organism on earth
a. 1%
b. 10%
c. 20%
d. 35%
e. 50%

Answers

B 10%


Hope I’m right tho

Which term refers to the simplest form of matter that cannot be broken down chemically?
A.Element
B.compound
C.Mixture
D.solution

Answers

Answer:

I believe the answer is A, an Element.

Explanation:

It's a substance that cannot be broken down into simpler substances. If I'm wrong, let me know!

5. __HCl + __NaOH-> __NaCl + __H2O

6. __FeS + __HCl-> __H2S + __FeCl2

7. __C2H4 + __O2-> __CO2 + __H2O

What are the balanced equations?

Answers

Answer:

5. balanced (1,1,1,1)(double replacement)

6. 1,2,1,1 (double replacement)

7. 1,3,2,2 (combustion)

Explanation:

please make me brailiest

How do we know that caramelizing sugar is a chemical change?


It involves dissolving sugar in water.

It changes the state of sugar from a solid to a liquid.

It separates sugar fromn a sugar solution.

It changes the sugar's color.

Answers

Answer:

Chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products. Substances are either chemical elements or compounds. A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.

Explanation:

caramel is the product of the sugar and hot water

Answer:

D It changes the sugars color

Explanation:

Because the change of color is a chemical change.

Have a splendid day! I hope you like the answer given.

WILL GIVE BRAINLIEST THANK YOU
Choose all the answers that apply.

Which of the following are types of changes that can happen in the rock cycle?

metamorphic to metamorphic
igneous to sedimentary
sedimentary to metamorphic
igneous to metamorphic
metamorphic to sedimentary

Answers

Answer:

igneous to metamorphic

sedimentary to metamorphic

What is the percent of Nitrogen in NH3?

Answers

Answer:

82.244%

Explanation:

The mass percent is an important method which is used to calculate the concentration of a solution. The mass percent of nitrogen in NH₃ is 82.2%.

What is mass percentage?

The mass percentage of a particular component in a compound can be defined as the ratio of the mass of the particular component to the total mass of the compound.

The equation which is used to calculate the mass percentage is:

Mass percentage = Mass of the component / Total mass of the compound × 100

or

The mass percentage is also calculated as:

% Mass = Mass fraction × 100

Here the mass of 'N' = 14.00 g

The molar mass of NH₃ = 17.031 g/mol

% Mass of 'N' = 14.00 / 17.031 = 0.82

0.82 × 100 = 82.2 %

Thus the mass percentage of nitrogen is 82.2 %.

To know more about mass percentage, visit;

https://brainly.com/question/27429978

#SPJ7


What type of reaction is this:
C + 02 --> CO2

Answers

Answer:

synthesis reaction

Explanation:

A + X --> AX

Answer:

Combustion reaction

Explanation:

please help! 35 points for a valid answer!

how is the potential (voltage) of a redox reaction determined using the reduction potential chart calculate the voltage for the equation in 3(a)​

Answers

Answer:

Oxidation  half  reaction  is  written   as    follows when  using  using  reduction potential  chart

example  when  using  copper  it is  written  as  follows

CU2+   +2e-  --> c(s)  +0.34v

oxidasation  is the  loos  of  electron  hence copper oxidation  potential  is  as  follows

cu (s)  -->  CU2+   +2e    -0.34v

Explanation:

Answer:

The potential difference is caused by the ability of electrons to flow from one half cell to the other. Electrons are able to move between electrodes because the chemical reaction is a redox reaction. ... The cell potential (Ecell) is measured in voltage (V), which allows us to give a certain value to the cell potential.

Explanation:

Question 10
Which of the following is a sign that you might be in an extremely unsafe situation?
A) you see frayed electrical cords on the machine you are asked to use
B) other workers are getting burned on the fryer that you are supposed to use
C) you are shown a forklift truck - something you have never operated before -
and told to move a heavy load of materials across the warehouse floor
D) only a) and c)
E) all of a), b), and c)

Answers

Answer:

Here it would be A,B and C because all the examples are violating safety precautions. They are all examples of un safe signs.

Hope this helps

Explanation:

Create a creature the reproduces asexually

Answers

Answer:

Hydra bud

Explanation:

this plant reproduces asexually

Describe what the greenhouse effect is and how it is caused on a molecular level.

Answers

The greenhouse effect can be cause as the process by which the temperature of the surface of the earth increases because of the earth's atmosphere. On the molecular level, greenhouse effect will be caused by the molecules of the some chemicals, called as the greenhouse gases.

When the some of the infrared radiation coming from the Sun and passes through the atmosphere, but the most of it absorbed and it will re-emitted in all the directions by the greenhouse gas molecules and the clouds. This effect is to warm the Earth's surface and will the lower atmosphere.

As the infrared radiation and the heat will be trapped and the recycled in between the atmosphere and the planet, it will generates the heat cycle.

To learn more about greenhouse effect here

https://brainly.com/question/13706708

#SPJ1

An 18.0 g piece of an unidentified metal was heated from 21.5 °C to 89.0 °C. If 789.75 J of heat energy was absorbed by the metal in the heating process, what was the identity
of the metal?

Answers

Answer: The metal is Calcium.

Explanation:

To calculate the specific heat of substance during the reaction.

[tex]q=m\times c\times \Delta T[/tex]

where,

q = heat absorbed = 789.75 J

c = specific heat of metal = ?

m = mass of substance = 18.0 g

[tex]\Delta T_f[/tex] = final temperature  - initial temperature  = [tex](89.0-21.5)^0C=67.5^0C[/tex]

Now put all the given values in the above formula, we get:

[tex]789.75J=18.0g\times c\times 67.5^0C[/tex]

[tex]c=0.65J/g^0C[/tex]

As specific heat is characteristic of each metal and thus the metal is calcium which has  specific heat of [tex]0.65J/g^0C[/tex]

What is “rounding down”?

Answers

Answer:

if the number is 4 or less than you can round down but if it's 5 or more round up

Explanation:

It makes the number simpler by making it smaller. Ex. 34 would round down to 30, 43 would round down to 40

hi can someone pls help me it’s important i’m studying for my finals

Answers

Answer:

i think the answer is D)

but u should ask the another person too:)

It’s either b or d because the other ones don’t sound right

6
Which subatomic particle can be found revolving around the nucleus?
proton
neutron
electron

Answers

Answer : The correct option is, electron.

Explanation :

As we know that,

An atom is the smallest unit of a matter that consist of three subatomic particles which are electrons, protons and neutrons.

The protons and the neutrons are located inside the nucleus or the center of the nucleus where the mass of the an atom is concentrated.

The electrons are located around the nucleus.

The protons are positively charged, the electrons are negatively charged and the neutrons are neutral that means it has no charge.

According to the question, the electron subatomic particle found revolving around the nucleus.

Hence, the correct option is electron.

11. Describe a procedure you would use to separate a mixture of iron filings, water, and clay. Be clear
about what would happen at each step.

Answers

Answer:

Filtration is commonly the mechanical or physical operation which is used for the separation of solids from fluids (liquids or gases) by interposing a medium through which only the fluid can pass.

Explanation:

hopefully this helps

If the length, width, and height of a box are 9.50 cm, 6.75 cm and 3.50 cm, respectively, what is the volume of the box in units of milliliters and liters?

(a) How many mL will the box contain?

(b) How many L will the box contain?

Answers

Answer: 1cm³= 1mL

Explanation:

____ Al(NO3)3 + ____ FeCl2 --> _____ Fe(NO3)2 + ______AlCl3
~
how to fix/ balance this chemical reaction?

Answers

The balanced equation

2Al(NO₃)₃ +  3FeCl₂ ⇒ 3Fe(NO₃)₂ + 2AlCl₃

Further explanation

Given

Reaction

Al(NO₃)₃ +  FeCl₂ --> Fe(NO₃)₂ + AlCl₃

Required

Balanced equation

Solution

Give a coefficient

aAl(NO₃)₃ +  bFeCl₂ --> Fe(NO₃)₂ + cAlCl₃

Make an equation

Fe, left=b, right=1⇒b=1

N, left=3a, right=2⇒3a=2⇒a=2/3

Cl, left=2b, right=3c⇒2b=3c⇒2.1=3c⇒c=2/3

The equation becomes :

2/3Al(NO₃)₃ +  FeCl₂ --> Fe(NO₃)₂ + 2/3AlCl₃ x3

2Al(NO₃)₃ +  3FeCl₂ --> 3Fe(NO₃)₂ + 2AlCl₃

Does SiO2 also equal Si2O4?
(silicon atom 1 oxygen atom 2 = silicon atom 2 oxygen atom 4?)

Answers

Answer:

7

Explanation:

that is the anwer of the question

Other Questions
Whats the answer to this question ? 4.4y - 5x = -8 Write the equation of the line that passes through the point 2,-1 and has a slope of -3 contaminant is any substance that causes? What are the processes thatturn a sedimentary rockinto a metamorphic rock? How did the United States go about becoming an imperialistic nation?Someone plzz help me 2. If an object is buoyant, then it will(3 Points)fioatsink 3. |_The basic function of all governments is protection and security for its citizens. a pool is draining at a rate of 5 gallons per minute. if there are 120 gallons in the pool how long will it take to empty the pool? Three sets of a sum of a number and four are added to the sum of seventimes the same number and thirteen. What percentage of the shape is purple?Write your answer using a percent sign (%).(Please help!) almost done 3 Joey is standing on a diving board that is 5.6 feet above sea level. Joey dives into the water to a depth of -8.6 feet below sea level. Which equation can be used to determine Joey's change in altitude during the dive? 5.6 (-8.6) = 14.2 5.6 + 3.0 = 8.6 -5.6 + 14.2 = -8.6 5.6 8.6 = -14.2 Which is NOT a force causing plates to move?ridge pushslab pulvolcanismConveCtionOb Fill in the blank with their correct verbs (will BRAINLIST if correct). I need someone to fill this out for 6 different sections for the Martin Luther King Junior I have a dream speech please be fast MY DAD JUST GOT IN A CAR WREAK WHAT DO I DOOOOOOO!!! A sample of g of pure aluminum metal is added to mL of M hydrochloric acid. The volume of hydrogen gas produced at standard temperature and pressure is Amy glued purple ribbon around the edge of her circular mirror. She used63 inches of ribbon. This was just enough to go once around the mirror. Whatis the approximate diameter of her mirror? What is the Length of side ML ? Would you expect the stomata of a desert cactus or the stomata of a water lily plant to close during the day? Can anyone help me please