X2O3 contain 32% of oxygen by mass, find the value of x.

Craters visible on the moon's surface provide further evidence of A) frequent asteroid impacts. B) periodic volcanic eruptions. C) frequent landings of spacecraft. D) the long-ago presence of ice on the moon.

What does the law of conservation of matter / Mass state A) mass can not be created or destroyed in a chemical reaction B) Mass can be created but not destroyed in a chemical reaction C) Mass can be destroyed but not not created in a chemical

One reactant with a mass of 10 grams is combined with another reactant with a mass of 8 grams in a sealed container. After the reaction, what is the most reasonable prediction for the total mass of the products of this reaction?

What is formed from a metal and a non-metal

You draw back on the piston of a pump and the volume of air in the pump doubles. Which of the following happens? A. Half of the gas leaks out and the pressure is reduced. B. The temperature of the room doubles. C.

Can dowels be chopsticks, since both of them are wood?

Which electron configuration represents the electrons in an atom of Ga in an excited state?

Why are there so many volcanoes in and around japan

A liquid fuel mixture contains 30.35% hexane (c6h14), 15.85% heptane (c7h16), and the rest octane (c8h18). what maximum mass of carbon dioxide is produced

What is the suns color