What is the relationship between temperature heat and thermal energy

Lets say you were doing an experiment on two different chemicals in two different test tubes. One chemical is giving off oxygen gas or hydrogen gas the other is giving off carbon dioxide gas.

Is the following a chemical change or a physical change? A pencil is sharpened in a pencil sharpener, leaving behind shaving. Physical Change Chemical Change

Which choice is an example of a decomposer? Question 8 options: tree sun fungi bat

Zinc phosphate is used as a dental cement. A 50.00-mg sample is broken down into its constituent elements and gives 16.58 mg oxygen, 8.02 mg phosphorus, and 25.40 mg zinc. Determine the empirical formula of zinc phosphate.

How many oxygen atoms are present in 0.500 mol carbon dioxide

How do the products and reactants of a chemical change compare? The mass of the products is greater than the mass of the reactants because energy is taken in by the reaction.

Calculate the molecular mass of ferric oxide (FE3O4)

Which of the following is a technique used in relative dating? Beta decay Index fossil correlation Isotope ratios Radiocarbon dating

Methanol enters a distillation column at 43 c. the column does not have a reboiler and uses open steam for heating. the column is at 101.3 kpa. the steam is pure water and is a saturated vapor.

The wavelength of a specific in the infared is 4 x 10^-6 meters. given that the speed of light is 2.998 x 10^8 m/s, what should be the frequency of this infrared wave?