According to the law of conservation of mass, the total mass of the reactants is

Two substances A and B react with each other in such a way that one-half of A remains after 25 min and one-fourth of A remains after 50 min. Doubling the concentration of B while keeping the concentration of A fixed doubles the rate of the reaction.

Calculate the molarity of a solution made by putting 55.8 g of nano3 into a beaker and diluting to 2.50 l.

How many moles of gas are in 4.4 mL at 1.2 atm?

Which of the following masses is the largest? O 0.020 kg 0 20.0 mg O 0.200 g O 2000 ug

It is important to know the difference between atoms, ions, and isotopes. Choose all of the correct answers. An atom of oxygen and the ion of oxygen both have 8 protons. Electrons must be removed from a carbon atom to form an isotope.

Consider n2 (g) + 3h2 (g) →→ 2nh3 (g). what is the mass of nitrogen gas required to react with 0.129 g h2?

Write a sentence that uses the words "mass extinction" correctly

Which description is not a property of an acid? A turns litmus paper red B bitter taste C corrosive D dissolve metals

Concerning the 10.0 mL of 0.50 M NaCl diluted to 100 mL of solution: When a solution is diluted, does the dilution change the number of grams dissolved? yes no

What causes element name to change