What is a monoatomic molecule

A bead has a mass of 15 g. You place it in a graduated cylinder that has 20 mL of water. After placing the bead in, the water level is now 30 ml. What is the density of the bead?

What are group 6a elements likely to do when they form ions-gain electrons or lose them? what are group 6a elements likely to do when they form ions-gain electrons or lose them? lose electronsgain electrons?

Calculate the pH of each of following buffered solutions.? a. 0.10 M acetic acid/0.25 M sodium acetate b. 0.25 M acetic acid/0.10 M sodium acetate c. 0.080 M acetic acid/0.20 M sodium acetate d. 0.20 M acetic acid/0.080 M sodium acetate

What name is given to the process a solid becomes a liquid? a liquid becomes a gas; I have had a think about it is it melting when a solid becomes a liquid a liquid becomes a solid?

How many valence electrons does Manganese have?

The use of fertilizers in agriculture has significantly altered several nutrient cycles including:

If 31.6 g of KMnO4 is dissolved in enough water to give 160 mL of solution, what is the molarity? AND what mass of oxalic acid, H2C204, is required to make 300 mL of a. 74 M solution?

From where do the kinetic tiles collect energy?

For the reaction 2Fe + 3Cl2 → 2FeCl3 which of the following options gives the correct reactant:reactant ratio? Fe:Cl2 = 1:1 Fe:Cl2 = 2:3 Fe:Cl2 = 3:2 Fe:FeCl3 = 1:1

A 2.575 g piece of gold (specific heat = 0.129 J/g°C) at a temperature of 75°C is placed into cold water at 10°C. If the gold loses 10.0 J of energy, what is its final temperature in the water? Enter your answer to the nearest whole number of °C.