Element X has five valence electrons, element Y has one valence electron, and element Z has five valence electrons. Which two of these elements are most likely to have similar properties? Explain your answer

What state of matter has a definite volume but no definite shape

What radionuclides is used in diagnosis of atherosclerosis technetium - 99 cobalt-60 yttrium-90 sodium-24 none above

How can you use your knowledge of minerals chemical makeup or use a: to identify minerals b: to determine the color of the minerals c: to classify minerals d: to determine how to break down minerals

What does the periodic law state? When elements are arranged in order of increasing atomic mass, there is a recurring pattern to their physical and chemical properties.

what mass of hg will occupy a volume of 50.0 mL

What happens is that passes through the Catapillar's in the small intestine

One mole of a monatomic ideal gas is subjected to the following sequence of steps: a. Starting at 300 K and 10 atm, the gas expands freely into a vacuum to triple its volume. b. The gas is next heated reversibly to 400 K at constant volume. c.

Write the complete balanced equation for the following reaction: C7H6O + O2 yields CO2 + H2O

An aluminum engine block has a volume of 4.61 L and a mass of 12.72 kg. What is the density of the aluminum in grams per cubic centimeter?

A cylinder of O2 gas occupies a volume of 60.50 L at STP. How many moles of oxygen gas are in the cylinder?