Chemistry » Page 63

Chemistry

Duran

The process of evaporation describes which of the following changes of state?

solid ➡ liquid

gas ➡ solid

liquid ➡ gas

solid ➡ gas

Answer Answers (1)

Chemistry

Shyanne Roy

What is the formula for potassium fluoride?

K2F

KF-

KF2

KF

Answer Answers (1)

Chemistry

Nicolas Hurst

What can block light by placing obstacles in this path, but it much more difficult to block sound why

Answer Answers (1)

Chemistry

Glenn Mccullough

If a 250 mL bag at 19°C, is

heated to 60°C, what will the

new volume of the bag be?

Answer Answers (1)

Chemistry

Asia Collier

Calculate the [H^+] of a solution that has a pH of 8.76 *

Round answers to 2 places past the decimal. Use the following format: #.## x 10^-# (there should be a space on either side of the x

Answer Answers (1)

Chemistry

Jason Riggs

Why is plastic not classified as a composite?

Answer Answers (1)

Chemistry

Fern

Consider HA2, the intermediate form of a diprotic acid. Ka for this species is 1024 and Kb is 1028. Nonetheless, the Ka and Kb reac - tions proceed to nearly the same extent when NaHA is dissolved in water. Explain.

Answer Answers (1)

Chemistry

Selah Schaefer

Which of the following is true of group 6A?

Includes Chlorine

Includes Sulfur

Gain 2 electrons

Tend to form + 2 ions

Have 5 valence electrons

Answer Answers (1)

Chemistry

Britney Rollins

What happens if you pour water in baking soda? Does it release energy? What kind?

Answer Answers (1)

Chemistry

Keaton Alvarado

Define chemistry in relation to biology and physics

Answer Answers (1)

Chemistry

Logan Lang

If you have 39 g of sodium azide in an air bag [2nan3 (s) - > 2na (s) + 2n2 (g) ], then how many molecules of nitrogen gas will it make at stp?

Answer Answers (2)

Chemistry

Hayden Schwartz

If 1 mol of a gas in a container occupies a volume of 12 l at a pressure of 1 atm, what is the temperature of the gas in kelvins?

Answer Answers (1)

Chemistry

Noelle Barr

200 lb/in" = ? tons/ft?

Answer Answers (1)

Chemistry

Randy Suarez

What variable is not used in the combined gas law

Answer Answers (1)

Chemistry

Konner

What is bromic acid

Answer Answers (1)