Gold is a pure substance or a mixture.

A cheek cell is placed in a concentrated salt solution. what would likely happen to this cell?

The amount of heat needed to raise one gram of a substance 1° Celsius is called

Which of the following statements about ATP is false? A. Its energy is captured in high-energy hydrogen bonds. B. It is a modified nucleotide. C. It provides the energy needed to drive energy-absorbing chemical reactions. D.

True or False: A physical change does not alter the identity of the substance.

Is it true that in a solution the tiny pieces of one substance are spread equally through the other substance

When does a spring tide take place? At the beginning of spring Only during the spring season Only after spring is over At any time

The highest cloud are known as

What is the mass of 4.85 X 10^22 atoms of iron (Fe) ?

If element x has 95 protons how many electrons does it have

Which of the following when dissolved in deionized water would make a good conducting solution? a) methanolb) sugarc) baking soda