Which of the following is a physical property of iron?

It rusts in the rain.

It forms a compound with sulfur.

It has a large mass per unit of volume.

It does not change when in contact with argon.

Both acids and bases are commonly used as cleaners. a. True b. False

Chlorine has an atomic number of 17. it often forms an ion by gaining 1 electron. what would its charge be?

What value do you estimate for zeff experienced by the outermost electron in both na and k by assuming core electrons contribute 1.00 and valence electrons contribute 0.00 to the screening constant?

What instrument us normally used to measure atmospheric pressure

Select the substance that is thought to be partially responsible for depleting the concentration of ozone in the stratosphere.

Which type of matter are made of atoms? a. solids only b. solids and liquids only c. plasma only d. solids, liquids, gases and plasma

Read the excerpt from a science text. In our experiment, we filled two identical glasses with water. To one glass, we added two tablespoons of salt and stirred. To the other glass, we added four drops of food coloring and stirred.

Carbon can double bond to some atoms to complete its octet. True or false?

What is caused by the heating and coolingof the earth

How do the particlesthat make up an atom interact