In which chemical equation is the number of atoms in the reactants the same as the number of atoms in the products? (1 point)

Question

0 CO2 +H20 - CH2OH +02
O LizCO3 -> LiO + COz
O CHA + 02 - CO2 + 2H20
O Zn + 2HCI -+ H2 + ZnClz

Answer 1

The chemical equation in which the number of atoms in the reactants is the same as the number of atoms in the products is:

Zn + 2HCl -> H2 + ZnCl2

Answer 2

Which statement is true regarding a chemical reaction? (1 point)
COURSE
TOOLS
Item 1
• Item2
Item 3
The total number of atoms changes, so mass is conserved in the reaction.
Even if the total number of atoms changes, mass may not be conserved in
the reaction.
Even if the total number of atoms does not change, mass may not be
conserved in the reaction.
The total number of atoms does not change, so mass is conserved in the Reaction

Answer 3

The statement that is true regarding a chemical reaction is:

The total number of atoms does not change, so mass is conserved in the reaction.

Answer 4

Which statement is true regarding a chemical reaction? (1 point)
Item 1
• Item?
tem 3
• The total number of atoms changes, so mass is conserved in the reaction.
o Even if the total number of atoms changes, mass may not be conserved in
the reaction.
o Even if the total number of atoms does not change, mass may not be
conserved in the reaction.
• The total number of atoms does not change, so mass is conserved in the
reaction.

Answer 5

The statement that is true regarding a chemical reaction is:

The total number of atoms changes, so mass is conserved in the reaction.