Which of these is an element?

Mg

TiCI2

HCI

LiF

How to do single replacement reactions

How many moles of molecules are in a mass of 26.8 g of xe at stp?

Is waste water a pure subtance or a mixture

Does seasonal temperature affect tides? Which type of investigation would most likely be done to answer the question? collective comparative descriptive experimental

What is the net charge of an ion that consists of 9 electrons, 11 protons, and 10 neutrons?

What is the formula for a compound containing one atom of sodium, one atom of oxygen, and one atom of hydrogen

A rectangular block of lead (Pb) measures 20.0 mm X 30.0 mm X 45.0 mm. If the density of Pb is 11.34 g/cm3, calculate the mass of the block

1. What is the name of TiSe

What pressure is exerted by 0.750 mol of a gas at 0 °C and a volume of 5 L? 2.1 atm 3.4 atm 4.98 atm 760 atm

8) What is the molarity (M) of an aqueous solution containing 22.5 g of sucrose (C12H22011) in 35.5 mL of solution? A) 3.52 M B) 1.85 x 10-2M C) 0.104 M D) 0.0657 M E) 1.85 M