Which reaction is a single replacement reaction?

a. 2H2 + O2 - > 2H2O

b. 2H2O2 - > 2H2O + O2

c. KOH + HCI - > KCI + H2O

d. Cu + 2AgNO3 - > 2Ag + Cu (NO3) 2

i'll mark brainliest!

For which pair of objects would adding the same amount of electrons to each object result in a decrease in the electric force? a. two positively charged objects b. two negatively charged objects c. two objects that have no charge d.

Is carbon or a fluorine atom more reactive?

What would the percentage of thorium-232 (parent compound) be in a rock that was dated 1.4 billion years?

What volume of a 0.352 m hydrochloric acid solution is required to neutralize 25.00 ml of a 0.700 m sodium hyrdoxide solution?

Why are scientist interested in exploring mars

What's a certain indicator that a molecule is polar?

If an electron fell to a lower orbit or energy level, energy would be a. created. b. emitted. c. absorbed. d. transferred.

How many electrons are contained in an Au3 + ion? (1) 76 (3) 82 (2) 79 (4) 197

Match the element with its number of valence electrons. Column A 1. Boron : Boron 2. Carbon : Carbon 3. Fluorine : Fluorine 4. Sodium : Sodium Column B a. 4 b. 1 c. 3 d. 7

The number of energy levels to which an electron can jump depends on the