How many neutrons does element X have if its atomic number is 46 and its mass number is 159

Why is a very small amount of cerium oxide nanoparticles need: A) the nanoparticles are elements B) the nanoparticles are very reactive C) the nanoparticles have a high surface area of volume ratio

What would cause entropy to decrease in a reaction

Hydrogen chloride gas and oxygen react to form water vapor and chlorine gas. what volume of chlorine would be produced by this reaction if of hydrogen chloride were consumed?

A three-carbon alkene contains two double bonds. Predict its molecular formula? A. C3H4 B. C3H5 C. C3H6

Which scientist first discovered that white light is a mixture of a rainbow spectrum of light rays? a. James Watt b. Marie Curie c. Isaac Newton d. Benjamin Franklin e. Galileo Galilei

Which describes the polarity in a water molecule? a). partial negative charge on the oxygen atom because its electrons are pulled toward the hydrogen atoms b).

To what temperature in kelvin will a 2.3 L balloon have to be heated to expand to a volume of 400 L Assume the initial temperature of the balloon is 25 degrees celsius.

In which changes of state do atoms lose energy?

Can you live without body tissue? This is a yes or no question, no explaining required, but you can add it if you want. : D

According to the graph, which activity has used the largest amount of water over the past twenty years?