would tearing aluminum foil be a physical change

Difference between nitrogen fixatio and dentrification

What has to do with the closeness of a measurement to the true value?

A feature of organic compounds not found in inorganic compounds is the presence of

Can a particle be a single atom?

What are some substances that from ion-ion forces?

How many calories are there in a 255 Food Calorie snack bar? a. 1 x 103 b. 2.55 x 105 c. 1.07 x 103 d. 60.9 e. none of the above

What is the greatest amount of ammonia (NH3) in moles that can be made with 4.7 mol N2 and 6.9 mol H2? Which reactant is limiting? How many moles of excess reactant will be left after the reaction?

Which one of these elements is an alkaline earth metal

Write the chemical equations for the neutralization reactions that occurred when hcl and naoh were added to the buffer solution.

Explain The relationship between engineering science and technology