Which of the following are density labels? Kg/L g/m g/mL cm/g

How many moles of hydrogen are in 2.8 moles of caffeine

What are charged atoms of elements that have an unequal number of protons and electrons?

2. Describe the steps involved, in order, when the sun's energy is converted to light from a street lamp via a solar cell.

Metals show a wide range of chemical behavior. Give examples of that variation by describing some common properties of calcium, gold, iron, and sodium.

Sand (silicon dioxide) and coke (carbon) are combined to form silicon carbide (SiC), a compound used in high-strength ceramic materials. What mass of silicon carbide will be produced from the reaction of 352 g silicon dioxide?

Just as earth moves around the sun, the moon revoles around the earth. About how many earth days does it take for the moon to travel around the earth?

Which of these is a characteristic of science? Its results cannot be generalized. Its findings are usually kept a secret. It follows a clearly laid out methodology. It is based on beliefs and preferences of scientists.

23491pa undergoes beta decay. what is the mass number of the resulting element?

What is the Mass in grams of 3.1 mol of mercury

A helium balloon contains 0.48 g of helium. Given the molecular weight of helium is 4.0g/mol, how many moles of helium does it contain?