which of these is a chemical change? A. melting ice B. making powdered juice C. cutting paper D. sodium hydroxide

Is hair abiotic or biotic

The equilibrium constant for the reaction H2 (g) + I2 (g) 2 HI (g) Kp is 54.4. What percent of I2 (g) will be converted to HI (g) is 0.200 moled each of H2 (g) and I2 (g) are mixed and allowed to come to equlibrium in a 1.00 liter container?

How many moles are 1.2x1025 molecules of NO2?

Which of the following outer electron configurations would you expect to belong to a reactive metal? a. ns2 b. ns2 np6 c. ns2 np5 d. ns2 np2

Which statement is true about the gravitational force? A. It only acts on objects that are close to each other. B. It acts on all objects all of the time. C. It only acts on objects that are in contact. D.

What does a reaction rate tell you

Which phrase provides the best definition of mass movement

Choose the statement below related to entropy that is correct. Group of answer choicesHeating always decreases the entropy of a system. The solution formation process usually leads to an increase in entropy.

What is the optimal level of humidity for storing wine? A. 70 percent B. 50 percent C. 20 percent D. 10 percent

What is the product? 3•[1 - 4 5 - 7] [3 - 12 15 - 21] [4 - 1 8 - 4] [3 12 15 21] [4 - 12 8 - 21]