How many moles are in 74 grams of Ca0

Consider a neutral atom with 30 protons and 32 neurons. What is the atomic number of the element?

How do the general methods for separating mixtures and compounds differ?

Which solution has the greatest number of hydroxide ions? baking soda, pH = 9milk, pH = 6tomato juice, pH = 3.5vinegar, pH = 2

A bracelet containing 0.364 mol of metal atoms is 66% gold. How many particles of gold atoms are in the bracelet? atoms

1) The chemical properties of a compound are different from the chemical properties of a mixture because: A) the substances in a compound are chemically joined in a fixed proportion B) the substances in a compound are always composed of at least

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