How do you solve for density

What particle is emitted when lead-214, 214 82 pb undergoes natural radioactive decay to bismuth-214, 214 83 bi?

What type of reacton is this? Ca + 2H2O = Ca (OH) 2 + H2

Copper exists in two naturally occurring isotopes. The average atomic weight of copper is 63.546 amu. If 69.15% exists as 63cu with an atomic mass of 62.92, then what is the atomic mass of the second isotope?

What is the total number of oxygen atoms on the right-hand side of this chemical equation?

The specific heat of ice is 0.5 calories/gram. 60 grams of ice will require ___ calories to raise the temperature 1°C. o О 30 o О 60 О120 o о 0.5

Phosphorus forms a number of oxohalides, x3po, in which x may be a f, cl, or br atom. the most common of these, phosphoryl chloride, is obtained as follows:

Which statement is true about the speed of light waves in a medium? a. Depends on the temperature of the light wave b. Decreases with a decrease in density of medium c. Decreases with an increase in density of medium d.

What's a certain indicator that a molecule is polar? the molecule has a nonpolar covalent bond and the dipole is cancelled due to symmetrical arrangement of atoms the molecule has a polar covalent bond and the dipole is cancelled due to symmetrical

In the synthesis of barium carbonate from an alkali metal carbonate (M2CO3 where M is one of the alkali metals) a student generated 3.7 g of barium carbonate from 2.0 g of their alkali metal carbonate.

Give the state of matter that water is in as it moves through earths system