How many valence electrons does strontium (Sr) have?

Chemically balance ___ Cu + ___ Br2 → ___ CuBr2

What would the carbon dioxide part of a soft drink be classified as? A. solute B. solvent C. solution D. mixture

What is true of a compound? It does not always retain the properties of the substances that make it up It requires electrical energy to make It requires heat energy to make It must have water as one of its components

What are three ways simple machines give us an advantage

What are the answers to earth science lab identification of minerals

If the caffeine concentration in a particular brand of soda is 2.85 mg/oz, drinking how many cans of soda would be lethal? Assume that 10.0 g of caffeine is a lethal dose, and there are 12 oz in a can.

Suppose that your favorite AM radio station broadcasts at a frequency of 1600 kHz. What is the wavelength in meters of radiation from the station? (Hint: convert kHz to Hz and find frequency first.)

Reaction rate lab report

The absence of which cell structure would indicate a cell is prokaryotic?

When 0.880 g of an organic compound containing carbon, hydrogen and oxygen is burned completely in oxygen, 1.760 g of co2 and 0.720 g h2 o are produced. what is the empirical formula of the compound?