Which planet has an atmosphere composed mainly of nitrogen (78 percent) and oxygen (21 percent) ?

I need a device that minimizes heat transfer and how it minimizes heat transfer. ill give brainliest to the best answer.

Determine the molecular weight of H2O. 18 g 18.0 g 18.01 g 18.016 g

A procedure calls for the bromination of 12 mmol of trans‑cinnamic acid with 12 mmol of Br 2 in glacial acetic acid solvent. Select the likely consequence of accidentally using 6 mmol of Br 2 instead.

Elemental mercury was first discovered when a mercury oxide

Which has more atoms: 1.10g of H atoms or 14.7g of Cr atoms

Reactions cannot occur without a certain minimum amount of energy. what is this minimum amount of energy called?

What are the products of the alpha decay of Iodine-131?

Which lewis electron-dot diagram represents a nitrogen atom in the ground state

What would a 1:1 liquid binary mixture of Cyclohexane and Toluene look like? How would the molecules associate with one another?

A sample of argon gas is at a pressure of 1.725x10^4 kPa and a temperature of 24°C in a rigid 20 L tank. How many moles of argon does this tank contain? (show your work)