All the elements in the universe heavier than Helium are/were created . a.
during the Big Bang
b.
by stars
c.
by chemical reactions
d.
from Lithium

Zinc + lead(ii) nitrate yield zinc nitrate + leadwhat's the chemical equation for this?

Asyringe contains 56.05 ml of gas at 315.1 k. what volume will that gas occupy if the temperature is increased to 380.5 k? a) 12.41 b) 46.42 c) 67.68 d) 81.74

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?