Which of the following elements ia an alkali metal?

A. potassium

B. calcium

C. chromium

D. germanium

In terms of charge distribution why is hydrogen cyanide polar?

If a gas has a volume of 15l and a temperature of 125K, and the temperature is increased to 225K, what is the new volume

Calculate the pH of a solution prepared by dissolving 0.147 moles of acetic acid and 0.405 moles of sodium acetate in water sufficient to yield of solution. The Ka of acetic acid is 1.76*10-5

The following statements pertain to the development of the theory of combustion by the French chemist Lavoisier in theeighteenth century.

What does the nucleus of a cell do

Record the length of the line shown in millimeters

Convert 15.0 inches to meters. Show detailed work

Titration experiments require the use of a ... Watch glass Burette Crucible Bunsen burner

Hat is the ultimate source of energy for the Earth? a. photosynthesis b. respiration c. the sun d. nutrient cycles

If an object sinks in water it's density is less than that of water true or false