On the periodic table, a "period" is A. all of the elements colored orange. B. all of the elements colored green. C. a vertical column of elements. D. a horizontal row of elements.

The electrons move around the nucleus in regions know as electron shells, is the statement true or false, if false, rewrite the statement

The decomposition of potassium chlorate yields oxygen gas. If the yield is 895%, how many grams of KClO3 are needed to produce 10.0 L of O2? 2KClO3 (s) - - > 2KCl (s) + 3 O2 (g)

The fact that ice is less dense than water is related to the fact that

Two unknown substance are in identical beakers. One is a solid and the other is a plasma. If you were given a scale to allow you to obtain the mass of the substance, and had to guess based on mass alone, you would say that the plasma is in the

The formula for cocaine is C17H21N04. What is the percentage of carbon in the compound? (a) 4.62% (b) 6.99% 21.1% (d) 67.3%

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