Which statement about a chemical reaction supports the claim that mass is conserved?(1 point)
The reactants and products have the same number of molecules of the same elements.
The reactants and products have the same number of molecules of the same elements.
The reactants and products have the same number of elements.
The reactants and products have the same number of elements.
The reactants and products have the same number of substances.
The reactants and products have the same number of substances.
The reactants and products have the same number of atoms of the same elements.
1. Which statement about a chemical reaction supports the claim that mass is conserved?
-The reactants and products have the same number of atoms of the same elements.
2. The atomic mass of titanium is 48 u. Which statement about titanium and carbon is correct?
-The mass of one titanium atom is equivalent to the mass of four carbon atoms.
3. How does the formation of water from hydrogen and oxygen demonstrate the conservation of mass?
-The atomic mass of the reactants equals the atomic mass of the product, and the product has the same number of atoms as the reactants.
4. Sulfur trioxide reacts with water to form sulfuric acid according to the following reaction:
SO3 + H2O → H2SO4
Given the atomic mass of hydrogen is 1 amu, the atomic mass of oxygen is 16 amu, and one molecule of sulfuric acid has a mass of 98 amu, what is the atomic mass of sulfur trioxide?
-80 amu
5. The following equation represents the atomic masses of the reactants and products in a chemical reaction.
(24 + 16) + (12 + 16 + 16) = 84
Which statement about the reaction is correct?
-A molecule with two atoms combined with a molecule with three atoms to produce a molecule with a mass of 84 u.