What kind of evidence can you use to determine if a chemical reaction has occured?

Which of the following characteristics is not a property of an acid? a. has a sour taste b. accepts an H + ion c. may cause damage to buildings, statues, and rivers d. increases the concentration of hydronium ions in an aqueous solution

Which gas relights a glowing splint? * C hydrogen A ammonia B carbon dioxide D oxygen

Consider the reaction of Al2O3 withH2SO4 to form Al2 (SO4) 3 and H2O. If 3.84 g AL2O3 is reacted with excess H2SO4 and 11.1 g of Al2 (SO4) 3 is ultimately isolated, what is the percent yield for the reaction

A 230 kg steel crate is being pushed along a cement floor. The force of friction is 480 N to the left and the applied force is 1860 N to the right. What is the normal force? A. 480 N down B. 480 N up C. 2300 N down D. 2300 N up

What does an arrow in a chemical equation show?

What is the Celsius equivalent of 212°f

Identify the characteristics of tornadoes and hurricanes

When magma intrudes parallel to another rock layer, the formation is called a (n) A. sill. B. dike. C. extrusion. D. unconformity.

What is the net amount of energy released when 1 mole of H2O is produced

Why is Sn (SO4) 2 named Tin (IV) Sulfate and not Tin (II) Sulfate?