What is a chemical change?

A.) Splitting water into hydrogen and oxygen

B.) Breaking a block of solid ice into smaller pieces

C.) Freezing liquid water

D.) Boiling water

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The atomic weight of silver is 107.868 amu. Naturally occurring silver consists of two isotopes. 107Ag (mass = 106.904 amu) and 109Ag (mass = 108.905 amu). What percentage of naturally occurring silver is the heavier isotope? a. 45.4% b. 52.6% c. 62.

Explain why both of the following statements are true. Statement 1: The total kinetic and potential energy of an object is called mechanical energy.

How can you make sure that all of the water of hydration is removed?

Simple carbohydrates include the monosaccharides and disaccharides. a. True b. False

The atomic mass of fluorine in 19.0 amu, so the molar mass is?

A rod shaped organism with no nucleus commonly found in Garbage will most likely belong to which kingdom

Alka-Seltzer is a solid mixture of two substances, sodium bicarbonate (NaHCO3) and citric acid (H3C6H5O7). The substances react to form water, carbon dioxide (CO2), and Na3C6H5O7.

Four properties of water are listed. 1. It is colorless and odorless in its pure form. 2. It reacts with metals to form metal hydroxide and hydrogen gas. 3. When heated to 100 °C, water evaporates. 4. It decomposes to form hydrogen and oxygen.

Water is A. Acidic B. Basic C. Neutral