The whole number mass ratio of oxygen to hydrogen in water is 8:1. How many grams of oxygen are there in 90 grams of water?

Which element is a metalloid? 1. Al 2. Ar 3. As 4. Aa

What is the electron configuration of the neutral lithium atom?

How can i use gland and hormone in a same sentence.?

Where is potential chemical energy stored? O Between different molecules In the bonds between atoms O in a closet Between the protons of an atom

Explain how the biosphere, geosphere and atmosphere are interconnected

Use the periodic table to determine the number of protons in an atom of arsenic (as)

Which of the following is a strong electrolyte. sugar, sodium chloride, honey vinager, carbon tetrachloride?

How do rockets work? What chemicals are used and what reactions happens with those chemicals to make a rocket fly?

The solubility of iron (ii) hydroxide, fe (oh) 2, is 1.43x10-3 gram per liter at 25oc. a. write a balanced equation for the solubility equilibrium

A substance undergoes change. Which Of the following indicates that the change was a chemical change? a. the substance changed state. b. the molecules of the substance changed c. the substance changed shape. d. the density of the substance changed.