You calculate that your semester average in history is 97.5. When you get your report card, your average is 96. What was the percent error of your calculation?

Compare the intermolecular forces, dipole-dipole and hydrogen-bonding. What would you suggest is the biggest different between them? A. Dipole-Dipole forces do not affect the properties of a substance as much as hydrogen-bonded forces do. B.

Why do nuclear reactions take place

A class is given a demonstration of solution chemistry and solubility equilibria. Passage: A 6.57-g sample of NiSO4•6H2O (molar mass 262.84) is dissolved in enough water to make 50.00 mL of a green solution, and 7.

Which 2 elements make up more than 80% of the atoms found in the Earth's crust

Which term is used when sugar is dissolved in water? a: covalentb: homogeneousc: amphibigeneousd: heterogeneous

The main source of phosphorous is in: rocks water plants the atmosphe

To what part of a plant does the stem sliver water and nutrients

You place a balloon in a closed chamber at STP. When the balloon doubles in size, what happens to the chamber pressure? A.) The pressure stays the same B.) The pressure doubles C.) The pressure reduced by one half

2K3N + 3CaCrO4 → Ca3N2 + 3K, CrO Give the formula for the second reactant: How many potassium atoms on the reactant side: How many oxygen atoms on the product side?

Why does aluminum most often have an oxidation state of + 3