How many significant digits are in 6.3590 x 107 mm?

4

5

6

52. Which is true about all the different types of matter? It is all made of the same types of molecules. It is all made of the same basic particles. Different types are made of different types of particles. It is all made of the same types of atoms.

During heavy exercise, what happens to the bicarbonate ion concentration in the blood? It decreases because it neutralizes the weak base formed during exercise. It decreases because it reacts with hydronium ions that form during exercise.

Isobutylene is a hydrocarbon used in the manufacture of synthetic rubber. when 0.847 g of isobutylene was subjected to combustion analysis, the gain in mass of the co2 absorber was 2.657 g and that of the h2o absorber was 1.089 g.

C5H12 + 8O2 10CO2 + 6H2O What is the mole ratio of oxygen to pentane? 1:6 6:8 8:1 10:8

8. How many protons are in C-12? C-13? C-14?

A student has two substances at a lab table. One substance is iron pyrite (fool's gold) and the other is real gold. After placing a 20.0-gram sample of iron pyrite into 40.0 mL of water in a graduated cylinder, it displaces 4.0 mL of water.

Hydrolysis is an example of which type of reaction?

Which of the following best represents a neutralization reaction

What is borons atomic number

Kinetic energy and potential energy are often considered to be forms of mechanical energy. List three other forms of energy and state a source for each.