How many different kinds of atoms occur naturally on earth? Why do you think so

you have one mole of the following atoms: carbon - 12, oxygen - 16, and uranium - 235. Which substance has more atoms?

P4 + 3 02 → 2 P2O3 What type of reaction?

A speeding bullet with a speed of 582 m/s has a kinetic energy of 34,000 J. What is its mass? A. 0.255 Kg B. 0.505 Kg C. 1.05 Kg D. 2.01 Kg E. 0.201 Kg

A scientist told his student assistants that he had sorted groups of mice by their intelligence and asked the assistants to assess the groups' maze-solving abilities. The scientist had not actually sorted the mice by intelligence.

If you have 250 grams do NaCl how many moles do you have

What is the molarity of a solution that is made by dissolving 3.68 g of sucrose (c12h22o11) in sufficient water to form 275.0 ml of solution?

A straight line on a speed-time graph means the speed is constant. this means the speed is not changing over time. how is this different from a distance from a distance-time graph?

Why is it important for an art conservation scientists to study the properties of a painting before it is repaired

How many different kinds of atoms occur naturally on earth? Why do you think so

Can a particle be a single atom? can a particle be a molecule?