Which of the following possesses an ionic bond?

H2S

LiF

CH4

NH3

Identify eight major tectonics plates by writing their names

What happens when you send the light through the diffraction lens?

0.205 mol of AlPO4 contains how many oxygen atoms?

The rate of effusion of oxygen to an unknown gas is 0.935. what is the other gas?

Assuming an experimental value of enthalpy of - 655 kJ/mol and a true value of - 603, what is the percent error of the experiment? Use a calculator and use significant digits in your computation as well as the absolute value of the percentage.

Identify the element that chlorine forms a covalent bond with

A child pulls a sled up a snow-covered hill. The child does 405 J of work on the sled. If the child walks 15 m up the hill, how large of a force must the child exert?

A piece of glass with a mass of 32.50 g specific heat of 0.840 J/g*°C and an initial temperature of 115 °C was dropped into a calorimeter containing 57 g of water (specific heat 4.184 J/g*°C).

Which of the following is the most likely description of the product or products of a double-displacement reaction? A) one new compound B) two new compounds C) oxygen and energy D) one new compound and an element

A balloon is filled with 12L of air at a pressure of 2 atm. What is the volume of ballon if the pressure is changed to 3 atm?