From the options provided for each element below, choose the properties that it may have based on its location in the periodic table.

Magnesium (Mg):

less reactive than sodium

dull

a gas

How many molecules are in 4.00 x 10^-23 moles of N2O5?

What is the first step when measuring out acid

Select all of the answers that apply. Which of the following are ways the atmosphere supports life? contains trace gases blocks harmful UV rays transports and distributes heat cycles essential elements: C, O, and N

What bond causes electron sharing among many atoms

How many moles of copper are present in a sample of tennantite with a mass of 2290 grams?

A phase change from a solid to a gas is called what

What is hydrocarbon?

Why did most scientists reject Wegner's theory for nearly a half century?

Define prediction and explain how it is used to formulate a hypothesis.

A group of organisms that breed and produce offspring that can breed. A. Species B. ecosystem C. Biodiversity