In order for plants to go through photosynthesis, they must use

A. X rays.

B. visible light.

C. infrared rays.

D. ultraviolet light.

Gamma radiation: can be easily detected with scientific instruments frequently accompanies the emission of alpha and/or beta particles during radioactive decay can readily penetrate most materials does all of the above

What are synthetic elements

Which type of energy is made by a door slamming? Group of answer choices electrical energy sound energy light energy mechanical energy

11. What is the mass number of an element if its atom contains 10 protons, 10 electron, and 12 neutrons? A 12 C20 D. 32

A gas has a volume of 3L at 21'c, if the gas heater to 100'c, what is the new volume?

Calculate ∆h0 for the following reaction. br2 ( g. → br2 (l) ∆hf0 br2 ( g. = 30.91 kj/mol; ∆hf0 br2 (l) = 0 kj/mol)

Ethyl alcohol has a latent heat of vaporization of 850 J/g. Water has a latent heat of vaporization of 2260 J/g. Container A contains 1.0 kg of ethyl alcohol. Container B contains 1.0 kg of water. Both liquids are brought to a boil.

The greatest composition by mass in an atom 17/8 O is due to the total mass of its

1. What is the criteria' for designating an object an asteroid?

Extend E1 Explain why the arrangement, movement and energy of particles change during changes of state.