Main sequence stars, such as the sun, produce energy primarily by fusing

A. hydrogen into helium.

B. helium into lithium.

C. lithium into beryllium.

D. beryllium into boron.

Which statement about osmosis is true? A. it only happens to sugar B. it only happens to water C. it does not require cellular energy D. it does require cellular energy

What is the importance of the electrons? (write in one paragraph)

What are free moving molecules

Neon has 8 electrons in its outer shell does it bond why or why not

State the mass law (s) demonstrated by the following experimental results, and explain your reasoning: Experiment 1 - A student heats 100 g of a blue compound and obtains 0.64 g of a white compound and 0.36 g of a colorless gas.

What is most believed by most scientists about the age of our solar system.

The water level in a graduated cylinder stands at 20.0 ml before and at 26.2 ml after a 16.74 g metal sample is lowered into the cylinder. what is the density of the sample. what metal is the sample most likely to be

An electrolyte is a substance that will conduct electricity when dissolved in water. a substance that conducts electricity well is a strong electrolyte. a substance that conducts electricity poorly is a weak electrolyte.

Energy is required to produce a chemical change during (1) chromatography (2) electrolysis (3) boiling (4) melting

What is the definition of colorie