If an atom has an atomic number of 12 and a mass number of 16 how many protons does it have

Why does green light slow down more than orange light does

What is the cause of everyone in our solar system orbiting around the Sun?

The clouds are grey and ground is wet. A quantitative B qualitative

You use energy to heat your home. What ultimately happens to the energy that you pay for in your heating bill? 1. The energy escapes your home and heats the outside. 2. The energy heats your home. 3. The energy disappears as it never exists. 4.

What is the net ionic equation of the reaction of BeCl2 with NaOH? Express your answer as a chemical equation.

Balance the following chemical equation: / text{CH}_ 4 + CH 4 + start text, C, H, end text, start subscript, 4, end subscript, plus / text{O}_ 2 / rightarrow 2 →start text, O, end text, start subscript, 2, end subscript, right arrow / text{CO}_2 +

How did the invention of the spectroscope in 1859 change the science of chemistry

Will zinc and sodium carbonate react?

What fraction of carbon 14 remains in an animal frozen in a glacier 18000 years ago?

How do you convert the number of molecules of a substance to the number of moles? a. add Avogardo's number b. subtract Avogardo's number c. multiply Avogardo's number d. devide Avogardo's number