Which of the following is a noncontact force?

A.

magnetic forces

B.

electrical forces

C.

gravitational forces

D.

all of these

What group of elements are the most chemically reactive?

Why do you think the transition metals are 10 columns wide?

A measurement of 5.685 * 10-6 is equivalent to 0.000 000 568 5. True False

Which state of matter has a definite volume and takes the shape of its containter

Why is the hybridization of [Cr (H2O) 6]3 + d2sp3 and not sp3d2?

In standardization of NaOH solution, a student found that 25.55cm3 of base neutralized exactly 21.35cm3 of 0.12M HCl. Find the molarity of the NaOH.

Which is a base unit in SI? A. centimeter B. kilogram C. gram D. grams/milliliter

The primary mechanism for converting atmospheric carbon into usable forms for life on earth is achieved by

For a particular collision, she detects the emitted products and find 15 protons, 2 antiprotons, 7 positrons, and 24 neutral particles. How many electrons are also emitted

Suppose you wanted to change the rate of a chemical reaction. what might you change in the reaction? explain the factor