A granular substance is added to a liquid. Which of the following would provide evidence to suggest a chemical change has taken place?
A. The granules seem to get smaller.
B. The liquid gives heat
C. The granules disso e completely
D. The volume of the old increases

How many moles of magnesium is 3.01 x10^22 atoms of magnesium?

Consider the equilibrium system: 2icl(s) ⇄ i2(s) + cl2(g) which of the following changes will increase the total amount of of cl2 that can be produced? all of the listed answers are correct decreasing the volume of the container removing the cl2 as it is formed adding more icl(s) removing some of the i2(s)

Calculate - analysis of compound composed of iron and oxygen yields 174.86 of fe and 75.14g of o. what is the empirical formula for this compound?