What is the smallest particle?

A 40 g gold coin is cooled from 50°C to 10°C (CAu is 0.13 J/g-° c. What is the H? 325 J 208 J + 208 J

If 4520 kJ of heat is needed to boil a sample of water, what is the mass of the sample of water (ΔHvaporiztion = 2260kJ/kg) ?

What diffuses faster: a gas sample into a vacuum container, or a gas sample into an air filled container?

Which of the following pairs of elements is most likely to form an ionic compound? a. nitrogen and sulfurb. sodium and aluminumc. magnesium and fluorined. oxygen and chlorine

If a compound containing only magnesium and oxygen consists of 0.564 g mg and 0.376 g o, what is the compound's empirical formula ...

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