What is the joining of atoms to form new substances called?

What type of atom is 2 (NH4) 2Cr2O7?

A 2g sample of crystals dissolve very slowly in 100mL of water while the water is stirred. Which of these would cause the crystals to dissolve faster?

What types of materials are usually ductile

How many electrons are present in outermost shell of argon atom

A living thing that cannot make its own food and must eat other living things for energy

Given 4.8 moles of a gas in a 1.8 L container, if the temperature is found to be 31 degrees Celsius, what is the pressure of the gas? (The ideal gas constant is 0.0821 L · atm/mol · K and 1 atm = 760 torr.) 6.79 torr 66.55 torr 6.79 x 100 atm 6.

Write this number to two significant figures in scientific notation. Use the "^" character to indicate the exponent. 4.253

AN atoms nucleus contains it's protons and electrons true or false

What is the difference between parent geometry and actual geometry

The volume of a gas is halved and the temperature is unchanged. The pressure of the gas is