A glass marble has a mass of 7.9 grams. If one cc (cc stands for cubic centimeter or cm) of this glass has a mass of 2.5 g, what is the volume, in cc of this glass marble?

Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?