Which one of the following is an incorrect representation of the indicated particle or nucleus?

A) positron:

B) neutron: on

C) helium-3: He

D) alpha particle He

E) proton

Who got credit for developing the periodic table

A reactant decomposes with a half-life of 129 129 s when its initial concentration is 0.131 0.131 M. When the initial concentration is 0.527 0.527 M, this same reactant decomposes with the same half-life of 129 129 s.

How many electrons can copper lend?

Which of the following is not true about the dilution of a solution? The concentration decreases. The amount of solvent increases. The amount of solute remains constant. The volume decreases.

What is the density of a 6cm3 cork that has a mass of 3g?

How many molecules are in 4.50 moles of H2O? A. 450 molecules B. 6.02 x 1023 molecules C. 2.71 x 1024 molecules D. 3.00 molecules

What is the main difference between a longitudinal wave and a transverse wave?

How many moles of methane (CH4) are in 7.31*10/25 molecules

What starting matirials do cells need for cellular respiration

What is the velocity of a wave with a frequency of 77 Hz and a wavelength of 200 m?