How much eneregy is released when 10.0 g of methanol is burned?

Which of the following elements has the lowest electronegativity? a. bromine b. lithium c. carbon d. fluorine

Energy has both wavelike and particle-like properties, but electrons have only particle-like properties. True False

When each of the following is heated to 50 degrees Celsius and the temperature is held constant for five minutes, which one undergoes only a physical change? A) egg B) steak C) ice cream D) cake batter

Ar (g) is placed in a 3.80 L container at 320 K. The gas pressure is 0.496 atm.

How are a substance and a solution similar? how are they different?

what would the total pressure of a mixture of fluorine, chlorine, and bromine gases be if the partial pressure are 2.20 atm, 6.70 atm, 0.03 atm respectively

Which net change occurs in a nuclear fusion reaction? (1) Ionic bonds are broken. (2) Ionic bonds are formed. (3) Energy is converted to mass. (4) Mass is converted to energy.

You have a 1 L container of a gas at 20 C and 1 atm. Without opening the container, how could you tell whether the gas is chlorine or fluorine? a. measure the mass of the gas b. measure the speed of the gas molecules c.

In a pan of boiling water, the water moves in a circular motion.

In the following reaction, which component acts as an oxidizing agent? 10 I - (aq) + 2 MnO4 - (aq) + 16 H + (aq) → 5 I2 (s) + 2 Mn2 + (aq) + 8 H2O (l)