Select the correct answer.

The presence of which phenomenon proved the predictability of the big bang theory?

O A.

death of large, ancient stars

B.

cosmic microwave background (CMB)

O c. formation of the Orion nebula

D. formation of new stars

Racet

N

.

A jar of crunchy peanut butter contains 1.43kg of peanut butter. if you use 8.0% of the peanut butter for a sandwich, how many ounces of peanut butter did you take out of the container?

Thermal energy only depends on the temperature of an object. true or false?

What happens to the reaction c2h6 + 137 kj when the temperature of the reaction is increased?

What phase change does dry ice go through to change from a gas to a solid

How many objects in the solar system have been confirmed to currently support life? A. three B. one C. four D. two

Which element has atoms that can form single, double, and triplecovalent bonds with other atoms of the same element? (1) hydrogen (3) fluorine (2) oxygen (4) carbon

Which of the following statements best describes the basic structure of an atom? Electrons and protons are in motion around a nucleus that contains neutrons Neutrons are in motion around a nucleus that contains protons and electrons Protons are in

Which of the following elements is released into the atmosphere by all of these processes: volcanic outgassing, animal respiration and flatulence, burning of fossil fuels, and metamorphism of limestone? a. Carbon. b. Nitrogen. c. Oxygen. d. Sulfur

A phase change from a solid to a gas is called what

What is the meaning of semipermeability?