Which element has both metallic and nonmetallic properties?

(1) Rb (3) Si

(2) Rn (4) Sr

How are alcoholic fermentation and aerobic respiration similar?

Cyclotrons and synchrotrons accelerate charged particles by repeatedly supplying them with pulses of a. energy. b. mass. c. light. d. all of these.

What is true if ln K is negative? A) ΔG°rxn is positive and the reaction is spontaneous in the forward direction. B) ΔG°rxn is negative and the reaction is spontaneous in the forward direction.

K occupies a volume of 5.0 liters. The gas sample is completely transferred to a 10.0-liter sealed, rigid container. What is the new pressure of the gas sample when the temperature returns to 273 K? (1) 1.0 atm (3) 3.0 atm (2) 2.0 atm (4) 4.0 atm

What are the three major fossil fuels?

What does it take to prove a hypothesis false? O A. It is impossible to prove a hypothesis false O B. At least ten examples O C. One counterexample O D. A poorly stated question

We dissolve 5g of sugar, C12H22O11, in water to make 1L solution. What is the concentration of this solution expressed as molarity.

Explain how the molar mass of a gas affects the rate at which the gas diffuses and effuses

Wat is a redox reaction

What is the difference between an organic and inorganic molecule