A block of iron has the dimensions of 3.00 cm x 3.00 cm x 3.00 cm. it has a mass of 213 g. when placed in water, the block sinks. what volume of water did it displace? a. 27.0 cm3 b. 213 cm3 c. 7.89 cm3 d. 0.127 cm3

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