How can you determine the number of electrons in an atom? a. valence number c. chemical number b. atomic number d. ionic number?

What advantage does nuclear power have over fossil fuels?

Diethyl ether has a vapor pressure of 400.0 torr at 18°C. When a sample of benzoic acid is dissolved in ether, the vapor pressure of the solution is 342 torr. What is the mole fraction of benzoic acid in the solution? a) 0.0169 b) 0.0197 c) 0.

How many moles of NaCl are present in 600 mL of a 1.55 M NaCl solution?

The substance (s) at the end of a chemical equations are the Precipitate (s) Reactant (s) Product (s) Catalysis

How do weathering and deposition differ? A. Weathering breaks down rocks; deposition leaves them in new places. B. Weathering has to do with air; deposition has to do with plants. C. Weathering occurs only in summer; deposition occurs year-round. D.

What property do most metals share

Express this amount in dozens. (Use decimal form.) 75 pies

A series circuit has two 5.0-ohm resistors and a power source of 9.0 volts. How will the current be affected and what will it be if another resistor (with a resistance of 7.5 ohms) is added to the circuit? A. increase; 0.51 amps B. increase; 0.

Which type of reaction will occur when equal volumes of 0.1 M HCl and 0.1 M NaOH are mixed 1. Neutralization 2. Ionization 3. Electrolysis 4. Hydrolysis

What is molarity of heavy water?