The following table lists the number of protons, neutrons, and electrons in several different atoms. Which two atoms are the same element?
Atoms
# Protons
# Neutrons
# Electrons
A
12
12
11
B
13
12
12
C
13
13
13
D
14
13
13

How can you use chemical equations to predict the products of the reaction you can carry out?

Sulfuric acid (a component of acid rain) reacts with limestone (calcium carbonate) to produce calcium sulfate and carbon dioxide. this damages buildings and statues made of limestone. which solution of sulfuric acid will damage these structures more quickly? a. 0.001% b. 0.005% c. 0.010% d. 0.015%

Acamcorder has a power rating of 17 watts. if the output voltage from its battery is 7 volts, what current does it use?units: