6. What is the formula for Copper (11) Fluoride?
a. Cur
b. Cu, F
C. CUF,
d. CuF

Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.

What are the coefficients to balance the following equation? ba+br2=babr2

The specific heat of a certain type of cooking oil is 1.75 cal/ (g c) how much heat energy is needed to raise the temperature of 2.67 kg of this oil from 23 c to 191 c