How much smaller is an electron than a proton

A graduated cylinder contains 17.5 ml of water. When a metal cube is placed onto the cylinder, it's water level rises to 20.3 ml. What is the volume of the cube cm3

If you wanted to make 12 grams of copper (II) bromide, how many molecules do you need?

You have been given a solution containing chloroform and toluene, the concentration of chloroform is specified as 40 mole percent, toluene 60 mole percent. what is the mass percentage of chloroform in this solution?

1. Which of the following is an example of a chemical element? a. Salt b. Water c. Sugar d. Sodium 2. Where can you find a common homogenous mixture? * A-salt B-coffee C-orange juice D-granola mixture (trail mix)

Why are cells called two building blocks of an organism

When does a spring tide take place? At the beginning of spring Only during the spring season Only after spring is over At any time

The highest cloud are known as

What is the mass of 4.85 X 10^22 atoms of iron (Fe) ?

If element x has 95 protons how many electrons does it have

Which of the following when dissolved in deionized water would make a good conducting solution? a) methanolb) sugarc) baking soda