By which process do light rays pass through window glas

1conduction

2convection

3radiation

4compression

Substances with a higher temperature a. have less thermal energy. b. have more molecular disorder. c. become more orderly if heated more. d. will move thermal energy to a hotter substance.

Which of the following will affect the rate of a chemical reaction? solution concentration solution density solute mass solution volume

What are some isotopes used in Cancer treatment and Magnetic Resonance Imaging (MRI) and how is the isotope used to achieve its function?

The course of a chemical reaction can be traced by using a A) polar molecule B) diatomic molecule C) stable isotope D) radioisotope

What is the mass of oxygen in 10g of water

What is the mass (in g) of carbon in a sample of acetone, CH3COCH3, which also contains 2.45 g of hydrogen?

What is the coefficient for hydrogen in the balanced equation for the reaction of solid molybdenum (iv) oxide with gaseous hydrogen to form solid molybdenum and liquid water?

Mixture's and solutions

What is half-life? a.) the time it takes for a radioactive atom to lose half its electrons b.) the time it takes for half of any number of radioactive atoms to decay c.) the average time it takes for any element to disappear completely d.

Water molecules are made of slightly positively charged hydrogen atoms and slightly negatively charged oxygen atoms. which force keeps water molecules stuck to one another?