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olya-2409 [2.1K]
4 years ago
9

How are atomic mass and molecular mass determined?

Chemistry
2 answers:
hichkok12 [17]4 years ago
7 0
Multiply it by the number of atoms of that element in the molecular formula.
frez [133]4 years ago
5 0
Multiply it by the number of atoms of that element in the molecular formula.
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A student combines two clear liquid chemicals together in a beaker. When the two chemicals are combined, bubbles are formed, the
OverLord2011 [107]

Answer:

chemical change

Explanation:

A physical change is one that makes changes to the physical properties of matter. In many cases, the difference is usually reversible. Examples include boiling, melting, freezing, the magnetization of metals, etc.

A chemical change is one in which a new kind of matter is formed. It is usually accompanied by energy changes, i.e., the evolution or absorption of energy in the form of heat or light. This process is not easily reversible. Examples include; combustion, rusting of iron, precipitation, the souring of milk, etc.

From the question given, the combination of two clear liquid in a beaker which results to formation of bubbles and changes in coloration of the solution is a chemical change.

4 0
3 years ago
What is the value of life
Murrr4er [49]

The Value of a Human Life: $129,000. In theory, a year of human life is priceless. In reality, it's worth $50,000. That's the international standard most private and government-run health insurance plans worldwide use to determine whether to cover a new medical procedure.

8 0
3 years ago
Convert 6.62 X 10^23 atoms to moles
olga2289 [7]

Answer:

1.099

Explanation:

Hope this helps

5 0
3 years ago
Read 2 more answers
A single atom of an element has 21 neutrons, 20 electrons, and 20 protons. Which element is it?
jeyben [28]

Answer:

Calcium

Explanation:

Clacium has atomic number 20. The atomic number. This means that it has 20 protons and 20 electrons. it has 21 neutrons.

5 0
3 years ago
Backpackers often use canisters of white gas to fuel a cooking stove’s burner. If one canister contains 1.45 L of white gas, and
rusak2 [61]
1 L ------- 1000 cm³
1.45 L ----- ???

1.45 * 1000 = 1450 cm³  ( volume ) 

Density = 0.710 g/cm³

mass =  in Kg 

m = D * V

m = 0.710  * 1450

m = 1029.5 g

1 Kg ------- 1000 g
   kg -------- 1029.5 g

mass = 1029.5 / 1000

mass = 1.0295 Kg

hope this helps!

7 0
3 years ago
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