Which of the following are chemicals? (1) clothing (2) food (3) fuels (4) all of the above

g Which statement about the rate of an SN1 reaction is incorrect? The solvent used can affect the rate of reaction. The concentration of reactants have no effect on the rate of reaction. The temperature can affect the rate of reaction.

If two electrons have same number of protons but different number of neutrons can they be atoms of the same element?

Does food cool faster after being in the microwave or being on the stove?

Calculate the mass of a liquid with a density of 2.5 g/mL and a volume of 15 mL.

1 - A gas occupies a volume of 4.0 L at 2.5 kPa. What volume will the gas occupy at 20.0 kPa? I

If enough heat is added to a substance, electrons begin to separate from the atomic nuclei. Which process does this describe? A. A solid turning into a liquid B. A plasma turning into a gas C. A gas turning into a plasma D.

What is the percent of H2O in a sample of a hydrate whose mass is 1.1290 g if the mass of water in the sample was 0.1660 g?

Why does conduction occur in solids and liquids easier compared to gases? Because the particles in gases are closer together and move slower Because the particles in gases are farther apart and move faster.

Write a balanced equation for the combustion of gaseous methane (CH4), a majority component of natural gas, in which it combines with gaseous oxygen to form gaseous carbon dioxide and gaseous water.

Pedro listed characteristics of two types of protists in a chart. Two Groups of Protists X Y Often multicellular Are usually autotrophic Include euglenoids Are heterotrophs Reproduce using spores Include different molds Which headings best complete