A chemist forms 16.6 g of potassium iodide by combining 3.9 g of potassium with 12.7 g of iodine. Show that these results are consistent with the law of conservation of mass.

Answers

Answer 1

3.9 g + 12.7 g = 16.6 g

The sum of the masses of potassium and iodine equals the mass of the product, potassium iodide. The results are consistent with he law of conservation of mass.

Hope this heeeelllllllpppppppp

Answer 2

The law of conservation of mass states that mass can neither be created nor destroyed by chemical reactions or physical transformations.

The mass of potassium iodide can be calculated from the sum of the mass of potassium and iodine.

The mass of potassium iodide is as follows:-

[tex]Mass\ of \ potassium\ iodide=3.9\ g+12.7\ g\\=16.6\ g[/tex]

So, the total mass of potassium iodide is equal to the mass of potassium plus iodine. So, these results are consistent with the law of conservation of mass.

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Related Questions

coefficient of 3MgCl2?

Answers

the coefficient is 3

Can someone help me find the 5 digits numbers in here?

Answers

Answer:

20322

Explanation:

Could it have something to deal with the teeth or mouths? The first pumpkin you have two teeth, second pumpkin looks like a 0, the third pumpkin I’m unsure of. The forth pumpkin has two teeth again same with the fifth.

So first pumpkin - 2
The second pumpkin - 0
The third pumpkin I’m unsure of
The forth pumpkin - 2
The fifth pumpkin - 2
So 20?22

Just an idea for ya. Hopefully it helps

The least massive of all the alkaline earth metals. Who
am I?

Answers

Chased on atomic mass, the least massive of the alkaline earth metals is Beryllium.

What are alkaline earth metals?

Alkaline earth metals are the metals found in group 2 of the periodic table of elements.

The alkaline earth metals include:

Beryllium Magnesium Calcium

The least massive is the first element in the group.

Therefore, the least massive of the alkaline earth metals is Beryllium.

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An atom contains 22 protons and 26 neutrons. What is its atomic number?

Answers

Answer:

the atomic number is 22

Explanation:

titanium is 22 on the periodic table. the amount of protons is the same as the atomic number

Answer:

22 :)

Explanation:

Green light has a frequency of 6.01 x 1024 Hz. What is the wavelength?

Answers

Answer:

λ= 4.99 * 10^-17

Explanation:

C= F * λ

F= frequency(Hz)

λ= wavelength(m)

C= 3.0 * 10^8

F= 6.01 * 10^24

λ= ?

3.0 * 10^8= (6.01 * 10^24) λ

***Simplify

λ= 4.99 * 10^-17

help me out pls (image attached)

Answers

Protons:13
neutrons:14
electrons:10

Predict the charge on the monatomic ions formed from the following atoms in binary ionic compounds:
(a) I
(b) Sr
(c) K
(d) N
(e) S
(f) In

Answers

i think the answer to this would be f

In a chemical formula what is used to indicate the number of atoms of each element

Answers

Answer:

molecular number

Explanation:

because it shows exact numbers

Which is NOT a source of bias? Pick one.

A. Accurate Records

B. Equipment Choice

C. Funding Source

D. Hypothesis Information

Answers

Answer:

A: Accurate Records

Explanation:

I think the answer is A. Accurate Records

Convert the following: 100 hg(hectograms) to g(grams)
a. 10,000 g
b. 10 g
c. 1 g
d. 100 g

Answers

Answer:

Explanation:

10,000g

just multiply the amount of hectograms by 100 to get grams

The answer is A, 10,000g

Solution ,colloid ,or suspension

Answers

Answer:

colloid

Explanation:

i think she making meth in her basement

Colloid lol that woman is crazy

What is the melting point of the above substance?

Answers

There is no substance there.. can you elaborate? I’ll answer in the comments

The amount of matter inside an object is called what?

Answers

The amount of matter inside an object is called the object’s mass.

The answer is an object mass.

A compound is always made up of the same ____ in the same proportions.

Answers

Answer:

elements

Explanation:

A compound always consists of the same elements in the same ratio. If the same elements combine in different ratios, they form different compounds

Ecology is defunded as the environment study of

Answers

Answer:

sicoligy

Explanation:

this answer was wrong sorry

Which property of metals allows aluminum to be flattened into thin sheets of aluminum foil?
O shininess
O malleability
O brittleness
O hardness

Answers

Answer:

malleability

Explanation:

Answer:

The answer is Malleabillity

Explanation:

I took the test and got a 100% on Edge

Please give star or Brainliest <3

Which describes the letter that belongs where the question mark is?

Answers

Answer:

Explanation:

Took the test

3+[5(2-3)-6

EVALUATE THE EXPRESSION
HELP PLEASE

Answers

Answer:

-8

Explanation:

Which one of the following is an alkane?

A. C2H4
B. C5H10
C. C3H8
D. C4H6

Answers

Hello

Answer:

C. C3H8

Find any errors in the orbital notation diagrams below and correct them.

Answers

Answer:

See explanation.

Explanation:

A. 2s is incorrect, the right arrow should be pointing downwards.

B. In 2p, the last box has 3 arrows. This is invalid. Each box can only store 2 arrows(electrons). The last arrow should be moved to a 3p orbital (new box).

C. In this one, the arrows switched directions (left is down and right is up). You could fix each box or just the last one (in 3p) to point downwards.

HHHEEEEELLLPPP MMMEEE
Travis is warming up before basketball practice. Which of these activities would provide the best dynamic stretch to prepare him for sprinting?

Forward bends
Arm rotations
Neck extensions
Leg swings

Answers

Answer:

Leg swings sounds good but not to sure

Explanation:

I mean in order to play basketball gotta warm up your legs

Answer: Leg swings

Explanation: Leg swings would be best for preparing to sprint because you will have to move you legs very quickly, and leg swings would be a good warm up without tiring yourself out.

The change of matter, solid, liquid and gas is called a_________.

Answers

Answer:

This would be a phase change

Explanation:

Since the diffrent phases solid,liquid,gas are changing to other phases.

Sorry for the bad explanation.

Write the chemical formula for the following: silver cyanide

Answers

Answer:

AgCN

Explanation:

Ag+C=N

what happen when two light waves traveling from oppsite direactions meet?

Answers

Answer:

When two or more waves meet, they interact with each other. The interaction of waves with other waves is called wave interference. Wave interference may occur when two waves that are traveling in opposite directions meet. The two waves pass through each other, and this affects their amplitude

Explanation:

hope this helps!

4. A 100.0 mL sample of 0.2516 M aqueous barium chloride was treated with an excess of sulfuric acid. The
resulting barium sulfate precipitate was filtered, dried, and found to have a mass of 4.9852 g. Compute the
percentage yield of barium sulfate in this process.

Answers

I wish I can help but I need help with the same one

wave has a frequency of 5hz and a wavelength of 25 m/s.
what is the speed of the wave

Answers

Answer:

125m/s

Explanation:

speed= wavelength×frequency

= 25×5

=125

The speed of the wave will be 125 m/s.

What is speed?

The magnitude of an object's rate of change of position with time, or the magnitude of change of position for each unit of time, is its speed; it can be considered as a scalar quantity.

Speed = wavelength × frequency

Calculation of speed is shown below:

It is given that wavelength = 25 m/s, frequency = 5 hz.

Speed can be calculated by using the formula:

Speed = wavelength × frequency

speed = 25m/s × 5 hz

speed = 125 m/s

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How is particle motion related to thermal equilibrium?

Answers

Answer:

With billions of moving particles colliding into each other, an area of high energy will slowly transfer across the material until thermal equilibrium is reached (the temperature is the same across the material).

largest atomic radius in period 4 row

Answers

Answer:

Explanation:

Thus, helium is the smallest element, and francium is the largest.

What do animals mean to you?

A)Lovable fur friends
B)Speacial to you
C)They are just animals
D)Who cares

Answers

A would be the answer

Answer: OMG EMMM, PLZ ANSWER ME, I REALLY MISS U , plz come back...

Explanation:

the horse is probably hungry observation or inference science

Answers

Answer:

observation

Explanation:

hope it is correct

Answer:

Inference science

Explanation:

Your inferring that the horse is hungry. The word 'probably' infers that the horse may be hungry.

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