There are the same number of atoms in a mole of calcium (Ca) than in a mole of helium (He).
True
False

When the earth was formed and cooled, why did nickel and iron end up in the center of the earth while basalt and granite ended up in the outer layers

How many liters of water vapor can be produced if 108 grams of methane gas (ch4) are combusted at 312 k and 0.98 atm? show all work. pls ! will mark as brainliest

What’s the percent by mass of carbon in c10h14n2