When a mixture of water, sand and salt is filtered what passed through the filter paper

An allotrope of carbon called buckminsterfullerene has the shape of

What type of energy travels in the form of electromagnetic waves?

You weigh three samples of the same metal, and find their masses to be 35.71 g, 39.04 g, and 40.81 g. the corresponding volumes are 3.9 ml, 4.5 ml, and 4.5 ml. what is the density, d, of the metal?

Isopropyl alcohol is mixed with water to produce a solution that is 36.0 % alcohol by volume. How many milliliters of each component are present in 685 mL of this solution

What kind of questions can science answer

Chemists use activity series to determine whether which type of reaction will occur?

1. Does the temperature rise or drop when you mix vinegar and baking soda. 2. Does the temperature rise or fall when you mix baking soda and water.

Use the balanced equation from number four above to determine the limiting reactant if we had a mixture of 5.0 moles of Fe and 4.0 moles of O2.

Using the kinetic theory what happens to oxygen particles as they are cooled

Identify the following: 1. The only 2 liquid elements. 2. The element in period 4, group 0. 3. The second metalloid in period 4. 4. The first element in group 4A.