What is a level 7-8 grade science fair project I can do?

Convert 7.10 grams of sodium to atoms

Which solution has the highest concentration of NaCl? A. 175 g NaCl in 1.0 L B. 58.5 g NaCl in 1.5 L C. 29.3 g NaCl in 0.5 L D. 2.5 mol NaCl in 2.0 L E. 5.0 mol NaCl in 3.0 L

Samples of neon gas and of krypton gas, with identical numbers of moles, pressures and volumes, are also held at the same temperature. What can be said of the particles of neon gas when compared to the particles of krypton gas?

A cylinder has a volume of 30 cubic centimeters. The gas inside is at a temperature of 420 K and a pressure of 110 kPa. Find the temperature of the gas which has a volume of 40 cubic centimeters at a pressure of 120 kPa.

What substance do Golgi bodies prepare for secretion?

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