As the temperature of a substance decreases, the

average kinetic energy of its particles

(1) decreases

(2) increases

(3) remains the same

Explain in you own words, why molecules sometimes attain three-dimensional shapes rather than just being flat.

Mechanical advantage can be calculated by which of the following expression? A) input force/output force B) output force/input force C) input work/output work D) output work/input work

The pH of a solution is 2.0. Which statement is correct? Useful formulas include StartBracket upper H subscript 3 upper O superscript plus EndBracket equals 10 superscript negative p H.

Whuch expression is equal to the number of grams in 2.43 kg

11. If the pH of a solution increases from 2.0 to 4.0, the H3O^ + ion concentration O a decreases by a factor of 2. b. decreases by a factor of 100. c. increases by a factor of 3. O d. increases by a factor of 1000,

The development of a new experimental method is most likely to change a theory if it makes it possible to___. A. analyze samples when they are frozen B. perform the experiment in a different lab C. obtain and analyze results more quickly D.

Which has the highest viscory? Milk? Water? Orange juice?

What was venter's comtributionto science?

How many atoms are in 151 g of calcium?

Which statements about the formation of the solar system are true and in a correct order? A. A black hole collapsed to form the sun; small planetary objects formed; small planetary objects collided with each other to form larger objects. B.