Most of the time, combustion reactions occur when hydrocarbons react with what element? A. sulfur B. oxygen C. chlorine D. nitrogen

How many grams of Fe2O3 will be produced from 24.0 g of Fe and 5.00 g of O2?

Based on the kinetic theory, which statement is true? O Matter consists of only large molecules. O Matter is made up of only charged particles. The particles of matter have zero kinetic energy and potential energy.

Which of the following is an example of + ΔS a) a solid being sublimed b) a gas being condensed to form a liquid c) a liquid freezing to a solid d) a gas being compressed at a low temperature to a solid

What is the concentration of hydronium ion in a 0.121 M HCl solution? A) 1.0 M B) < 0.121 M C) 0.121 M D) not enough information

Despite the name, dry cleaning does involve the use of liquid solvents. why would a dry cleaner use both polar and nonpolar cleaning solvents

What kinds of scientific investagations involve making observations

According to the kinetic molecular theory, when a gas particle hits something what will happen?

Protons and neutrons are made from which of the following? hadrons down quarks only up quarks and down quarks up quarks only

Not all of the water falls as rain, snow, or sleet evaporates. What happens to the rest of the water?

58.5 million excess electrons are inside a closed surface. What is the net electric flux through the surface?.