Explain how a skateboard resting on the ground contains energy. If the skateboard were moving, would it have more energy than it did at rest? Explain.

An organic acid is composed of carbon (45.45%), hydrogen (6.12%), and oxygen (48.44%). Its molar mass is 132.12 g/mol. Determine the molecular formula of the compound.

List some ways you can separate a mixture into different substances? example: i have a bag of iron filings and sand how do i separate them?

Atoms of different elements have different numbers of protons. true or false.

Consider an experiment in which an aluminum soft drink can and a steel soup can are left outside for a few days. Use your knowledge of the corrosion of steel and aluminum to predict how they would look different after a week exposed to rainy weather.

How many blue beads would I need to balance the equation of MgC12+2NaF->MgF2+2NaC1

What device changes mechanical energy into electrical energy? Question 4 options: transformer generator copper wire light switch

Reaction rates are affected by how often the particles collide true false

A 25 N and 5 N force pull to the right. Friction is 10 N. If the object is 5 kg, find the net force and acceleration.

What properties of matter are intensive independent of their size

What is the density of an object having a mass of 8.0g and a volume of 25cm3