A cylinder at left with balls evenly spaced throughout the cylinder has an arrow leading to a cylinder at right cylinder with balls in a layer at its bottom. Which change of state is shown in the model?

Hydrogen has three isotopes 1H, 2H, and 3H. What is the difference between these three isotopes? -The number of protons ranges from 1 to 3. -The number of electrons ranges from 1 to 3. -The number of neutrons ranges from 0 to 2.

Match the terms to their definitions a reproductive cell

element x is a neutral element and has 39 protons. what element is it and how many electrons does it have? (use the periodic table)

Suppose you wanted to make 100 grams of water. how many moles of water are in 100 grams

C4H1o0 + 02 arrow C02 + H20 balance the equations

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