Which instrument would be used to measure

the mass of a small stone?

I

1. graduated cylinder

2. Celsius thermometer

3. triple-beam balance

4. metric ruler

One of the half-reactions for the electrolysis of water is 2H + (aq) + 2e - → H2 (g) If 0.845 L of H2 is collected at 25°C and 782 mmHg, how many faradays of electricity had to pass through the solution?

What is the primary function of decomposers in an ecosystem?

Which statement best explains the symbol [NaCl]? moles of water per liter of NaCl moles of water per liter of solution moles of NaCl per liter of solution moles of NaCl per liter of water

Why are the bacterial endospores placed on the paper strip and not directly in the fermentation broth?

11. Why is the first ionization energy of a nonmetal much higher than that of an alkali metal in its same period

A very small equilibrium constant means ... a. an equal amount of reactants and products c. more products b. more reactants d. system isn't at equilibrium

What is in a banana? give me specifics?!

When 17.28 mL of a 0.078 M aqueous solution of Na2SO4 is combined with 11.30 mL of a 0.20 M aqueous solution of NaCl and 7.84 mL of a 0.26 M aqueous solution of KCl, what is the total concentration of Na + in the combined solution?

What mass of carbon can 3000 J of energy raise from 12°C to 40°C?

How do you balance __Mg + __HCl - - > __MgCl2 + ___ H2