Some elements have isotopes which have a different number of neutrons, and this means they have different masses.
False cause they give the truth in a disguise
The number to the left of a chemical formula is called coefficients
Explanation
Coefficient is the number in front of a chemical formula.
It tell how many molecules of a given formula that are involved in a chemical reaction.
in 2H+O→ H2O the coefficient are 2,1,1
that is, 2 in front of H2
1 in front of O
1 in front of H2O
Answer:
Oxygen and glucose
Explanation:
Plants use the sun, water, and CO2 to make their own energy. Glucose is the result, and Oxygen is just a biproduct.