Answer:
A
Explanation:
carbon dioxide is released in cellular respiration
D) refracted
because , the light changes direction.. causing the penny to look bigger than it is.
Elements in the same group have D. Same number of valence electrons.
Answer: d
explanation: in both reactants and products there are 2 hydrogen and 2 chlorine atoms
Mass is often the most common and weight is its close to that but I'd go with mass
