A. Atoms gain, lose, or share electrons to achieve a full valence shell.
Might be false
Hope so
So sorry if it is wrong
The answer to the question is "B. Roman Numerals"
Answer:
The answer to your question is letter B. conservation of mass
Explanation:
A.molecular changes I think there is no molecular changes law so this option is discarded.
B.conservation of mass This law states that the number of products is equal to the amount of reactants so if chemical equations are balanced, they satisfied this law.
C.conservation of energy This law states that the total energy in an isolated system remains constant and is different from the chemical equations so this option is discarded.
D.products and reactants are elements of a chemical reaction but they are not a law, so this option is discarded.
Answer:
1.8 x 10^ 24 atoms of oxygen
Explanation:
The molecular weight of ozone is known to be 48 grams / mol. Here we are given a sample of 48 grams of ozone as well, so in 48 grams of ozone the number of moles = 48 / 48 = 1,
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1 mole of ozone is equal to 6.0221415 × 10^23 molecules of ozone. Respectively, 1 molecule of ozone has 3 atoms of oxygen. Thus, you can conclude the following -
3 * 6.0221415 × 10^23 = ( About ) 1.8 x 10^ 24 atoms of oxygen
<u><em>Hope that helps!</em></u>