Exit Calcium has an atomic number of 20. How many electrons of a calcium atom are involved in chemical bonding? A. 2 B. 8 C. 16 D. 20

Neutrons are found in the nucleus and separate the other particles so that the strong force can hold the nucleus together.

How are shadows formed?

The compound potassium nitrate is a strong electrolyte. write the reaction when solid potassium nitrate is put into water:

Cobalt (ii) chloride hexahydrate dissolves readily in water to give a red solution

Calcium hydroxide, Ca (OH) 2, is neutralized by hydrochloric acid, HCl, and the products are calcium chloride and water. You have a sample of calcium hydroxide that you know contains 2.6x1024 hydroxide ions, based on an analysis of the sample.

What name is given ta a metal strip dipped into a solution of salt

The wheels of a car are able to spin due to the combustion of gasoline inside the car's engine. what type of energy transfer best explains this process? a. mechanical energy is converted to light energy. b.

Why is the ocean water near the poles less salty than other places? Question 8 options: Rain washes mineral ions from the land into water. Fresh water from the glaciers are melting into it. Active underwater volcanoes erupt nearby.

Determine whether the following pairs of elements can form ionic compounds. (Ionic or Not Ionic) 1 - iron and cholrine 2 - oxygen and magnesium 3 - fluorine and sodium 4 - potassium and sulfur 5 - nitrogen and iodine 6 - lithium and calcuim

What is the scientific notation of 18? Must be a number 1<_ M <10