Select all actions below that you must take to ensure laboratory safety during the experiment. Check all that apply

In what unit do we usually measure the force of the earth gravity? Acceleration due to gravity is 9.8/s^2

I'll be giving out brainliest to whoever chooses more than one! Which state of matter contains particles that move slightly in a fixed position? You can choose more than one! a. plasma b. liquid c. gas d. solid

The complete combustion of 0.521 g of a snack bar in a calorimeter (Ccal = 6.15 kJ/°C) raises the temperature of the calorimeter by 1.29 °C. Calculate the food value (in Cal/g) for the snack bar.

When you hammer a nail, which types of energy are you using? Select all of the correct answers. potential energy physical energy kinetic energy mechanical energy

What mass of silicon dioxide contains 9.72 X10e24 molecules of silicon dioxide?

What is the name of the reaction of chlorine and potassium iodide?

What enables Dna to have so many variations with only 4 chemicals?

A chemist obtains 500.0 mL of a solution containing an unknown concentration of calcium iodide, CaI2. He pipets 15 mL of this solution into a 100 mL volumetric flask and dilutes to the mark.

Enthalpy changes that are difficult to measure directly can often be determined using Hess' Law to construct an enthalpy cycle.

Student follow up The ionic equation for the reaction between zinc and sulfuric acid is. Zn (s) + 2H (aq) - - Zn" (aq) + H2 (g) a State what has been oxidised in this reaction. Explain your answer in terms of electrons.