What do we use electromagnet for

Can a beta live in the same tank with an oscar fancy fish

What are the elements in the first vertical line of the periodic table?

Imagine a moving boat making waves in the middle of a pool of water. Also, imagine two observers, one behind the boat and one in front of the boat. Describe how each observer will see the waves generated by the boat and explain their observations.

How to convert 0.000984 into scientific notation?

How many grams are in 1.0 moles of baking soda?

The difference between ionic covalent and metallic bonding

As the speed of a particle increases, does its associated wavelenght increase or decrease

The composition of air by volume is approximately 1/5 oxygen, 4/5 nitrogen. When air is passed through red-hot carbon, the following reaction occurs: 2C + O2 (g) 2CO (g).

How many atomic mass units are equal to 1.672*10-24 g of protons?

What is the name of the compound Sr3N2?