Answer:
2Zn + 2HCl = H2 + 2ZnCl
Explanation:
Zn is a metal, when metals have reaction with strong acid it will produce H2 gas and the metal's salt which is ZnCl.
Later on you just make the equation in balance.
Plants need sunlight for photosynthesis.
Answer:
2
Explanation:
The total number of atoms in silver sulfate Ag2SO4 is 2
Answer: B yeah I'm pretty sure
Arsenic
Arsenic has an atomic mass of 74.92, is a well known poison, and a metalloid.