Mass is often the most common and weight is its close to that but I'd go with mass
Answer:
Vaporization is basically just evaporation which does not require nearly as much heat and happens naturally however when it comes to boiling point this is the point where water has been heated enough to start bubbling and changing state slowly.
Explanation:
Answer : The 
for the reaction is, 54.89 KJ
Solution : Given,
Mass of ZnS = 48.7 g
Molar mass of ZnS = 97.474 g/mole
First we have to calculate the moles of ZnS.
The balanced combustion reaction is,
From the given reaction, we conclude that
As, 2 moles of ZnS gives energy = 220 KJ
So, 0.499 moles of ZnS gives energy = 
Therefore, the for the reaction is, 54.89 KJ
Answer:
Explanation:
1) NaCl → Na + Cl₂
2) Na + HCl → NaCl + H₂
Chemical equation:
NaCl → Na + Cl₂
Balanced chemical equation:
2NaCl → 2Na + Cl₂
There are two moles of sodium and two mole of chlorine on both side of equation so given chemical equation is correctly balanced and follow the law of conservation of mass.
2)
Chemical equation:
Na + HCl → NaCl + H₂
Balanced chemical equation:
2Na + 2HCl → 2NaCl + H₂
There are two moles of sodium and two mole of chlorine and hydrogen on both side of equation so given chemical equation is correctly balanced and follow the law of conservation of mass.
Law of conservation mass
According to the law of conservation mass, mass can neither be created nor destroyed in a chemical equation.
Explanation:
This law was given by french chemist Antoine Lavoisier in 1789. According to this law mass of reactant and mass of product must be equal, because masses are not created or destroyed in a chemical reaction.
The amount, in grams, of carbon tetrachloride that would be present, will be 22.99 grams.
<h3>Finding the mass from the number of particles</h3>
For every one mole of any substance, there are 6.022 x 
atoms of particles. This is according to Avogadro.
Now, there are 9 x 
particles in this particular carbon tetrachloride.
If 1 mole = 6.022 x particles
Then,
9 x particles = 9 x x 1/6.022 x particles
= 0.1495 moles
Carbon tetrachloride has the chemical formula CCl4 and has a molar mass of 153.82 g/mol.
Recall that: mole = mass/molar mass
Hence, mass = mole x molar mass.
Mass of 0.1495 moles CCl4 = 0.1495 x 153.82 = 22.99 grams
More on number of atoms of substances can be found here: brainly.com/question/1445383
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