Observable matter makes up about what percentage of the universe? 5% 10% 50% 95%

The atomic number of an element includes

Determine the number of significant figures in 400

What's the primary difference between a scientific theory and a scientific law, is that a law?

Carbon monoxide (CO) gas reacts with oxygen (O2) gas to produce carbon dioxide (CO2) gas. If 1.00 L of carbon monoxide reacts with excess oxygen at standard temperature and pressure, what volume of carbon dioxide is produced?

Match the terms Question 6 options: Force Static friction Rolling friction Sliding friction 1. for force when two solid surfaces slide over each other 2. the force when an object rolls across a surface 3.

Whats the answer to 7/2 * 1/5?

Which statement correctly describes the relationship between reactant and yield? The actual yield is calculated from the amount of the excess reactant present. The actual yield is calculated from the amount of the limiting reactant present.

Balance the following reaction. Leave the box empty if no other coefficient is needed. C2H5 + O2 → CO2 + H2O

What three human body systems coordinate cause an arm to move

Which statement does NOT apply to Alkenes? They readily react They have double bonds They are more stable than alkanes They are unsaturated