Isotopes are atoms of the same element that have different?

Activation energy of a reaction: is an alternative term for the free energy of activation. is decreased in the presence of an enzyme specific for that reaction. is the amount of free energy required to bring the reactants to the transition state.

What is the molarity of a solution that contains 100.0 g of CuCl2 per 750. mL of solution?

Which allotrope of carbon is candidates the hardest material known

Which of these is an example of a chemical change? A. breaking glass B. melting ice on the windshield C. burning gasoline D. denting a bumper

Visible light travels at a speed 3.0 * 108 of m/s. If red light has a wavelength of 6.5 * 10-7 m, what the frequency of this light?

The smallest unit of an element is a blank

How many sodium atoms will create an ionic bond with sulfur?

Rank the elements from smallest to largest electronegativity negativity (smallest at top) 1. N 2. P 3. As 4. Sb

A bicyclist pedaling up a Hill. What type of energy potential or kinetic?

What improvements have been made in modern farming? Select all that apply. 1. machines can do more work over less time 2. better seeds sprout and grow much more quickly 3. trains can transport food over long distances faster 4.