How many chemical reactions are possible regarding the formation of carbonic acid and the dissolving of calcite?

A. 3

B. 10

C. 23

Do females take longer to eliminate alcohol than male, even though they might be the same weight? a. true b. false

For the reaction 5 o2 (g) + 4 nh3 (g)  4 no (g) + 6 h2o (g) if nh3 is being consumed at a rate of 0.50 m•s - 1, at what rate is h2o being formed?

Which of the following statements is true? One variable of a gas affects only one additional variable of the gas. Several variables of a gas often change simultaneously.

A toxin producing gene is inserted into a crop of corn to be used as a pesticide. Describe both a positive and negative result that could occur. Justify your results in two or more complete sentences.

Some amount of water is evaporated from a 2.0 L, 0.2 M NaI solution, to from a 1.0 L solution. The molar mass of NaI is 150 g/mol. What is the final concentration of NaI solution in

Rutherford calculated that a gold atom is about 10,000 larger than its nucleus. Thinking about his experiment and its results, how did he come to this conclusion?

Which atom in the ground state requires the least amount of energy to remove its valence electron? (1) lithium atom (2) potassium atom (3) rubidium atom (4) sodium atom

Which of the following is the correct Lewis structure for ammonia (NH3) ? Note: Hydrogen and nitrogen have one and five valence electrons respectively.

Which statement about the electron-cloud model is true? A. It is the currently accepted atomic model. B. it can easily be replaced by existing models C. It specifies the location and momentum of an electron. D.

To the nearest gram, what is the mass of one spoonful of sugar?