9g of product was expected from a lab experiment yet only 7.8g was obtained. what is the percent yeild of the reaction performed?

In science, skepticism means coming up with inventive ways to solve problems or produce new things? true or false

A gas made up of atoms escapes through a pinhole 0.155 times as fast as h2 gas. write the chemical formula of the gas.

Which of the following is supportive evidence of the big bang theory? A. pulsars B. cosmic microwave background radiation C. galactic clusters D. the different shapes of galaxies

An aqueous solution has an h3o + concentration of 4.4*10-2 m. calculate [oh-] for this solution.

An excess of NiCO3, 12 g, was added to 40cm cube of sulpheric acid, 2.0 mol/dm cube. The unreacted nickel carbonate was filtered out and the filtrate evaporated to optain the crystals.

Difference between radical and compound

Water is a produced when 30.0 grams of hydrogen reacts with 80.0 grams of oxygen what is the limiting reagent

How are reactions and products related in a chemical reaction?

Ollie wants to sign up with an online social network called TeensMeet, which other kids at school have joined.

7. A perfect cube has a width of 2 cm. What is the cube's volume? Show your work!