Which coefficients balance the following equation?

__ CH4 + __ O2 = __ CO2 + __ H2O

A. 2, 1, 2, 1

B. 1, 2, 1, 2

C. 1, 1, 1, 1

D. 2, 2, 2, 2

Which theory states that our inner planets are rocky because rocks and metals combine at extreme temperatures, while the outer planets are gaseous because hydrogen compounds condense at colder temperatures? Hubble Doppler Kepler Nebular

How many grams of nitric acid will react completely with a block of iron metal that is 4.5 cm by 3.0 cm by 3.5 cm, if the density of iron is 7.87 g/mL? Show all steps of your calculation as well as the final answer. Fe + HNO3 → Fe (NO3) 3 + H2

Calculate the pOH of a solution that contains 3.9 x 10-5 M H3O + at 25°C. a. 4.41 b. 9.59 c. 8.59 d. 0.59 e. 5.41

Is phenol (c6h6o) organic or inorganic

2 The change in the velocity of an object is defined as its

Contrast mixtures with pure substances

A standard cell potential of which value describes a spontaneous redox reaction?

Using the combined gas law, if the volume of a gas at 155kPa changes from 22L to 10L. What is the new pressure if the temperature remains constant?

What is a contributor of global warming? a. aerosol sprays b. carbon dioxide c. acid rain d. garbage

How is momentum similar to inertia? Explain.