Which of these changes do not involve forming or breaking chemical bonds?

A.

burning and melting

B.

rusting and cutting

C.

burning and digesting

D.

boiling and melting

Which of the following statements is true? Question 4 options: A) Neutrons have a negative charge. B) Electrons have a negative charge. C) The n=1 shell can hold eight electrons.

A scientist is wondering why a certain region in the ocean doesn't have maximum phytoplankton growth, despite having plenty of nutrients. The scientist samples the water for nutrient levels and finds that there is 2.

How many liters are there in 145,000,000 milliliters?

How many oxygen atoms in 2NaOH?

What changes in color occur when bromine reacts with an alkene

An atom in the excited state can have an electron configuration of

4fe (s) + 3o2 (g) →2fe2o3 (s) how many grams of Fe2O3 are produced when 12.0 of iron rusts

Chromium 6 is commonly referred to as?

How does a parallel circuit differ from a series circuit? A. A parallel circuit had one path for electrons, but a series circuit has more then one path. B. A series circuit has one path for electrons, but a parallel circuit has more then one path. C.

Which of the following is an example of potential energy? -none of the above -A person jumping on a trampoline -a book on the shelf -A person running in place