The atomic mass can be smaller than the atomic number

Given 28.2 grams of an unknown substance, if the substance absorbs 2165 joules of energy and the temperature increases by 35 Kelvin, what is the specific heat of the substance? 2.14 x 106 J/g·K 2.19 x 100 J/g·K 5.73 x 10-4 J/g·K 2.

Which of the following is not a possible termination step in the free radical chlorination of methane? Group of answer choices ∙CH3 + Cl2 → CH3Cl + Cl∙ ∙CH3 + Cl∙ → CH3Cl ∙CH3 + ∙CH3 → CH3CH3 ∙CH3 + wall → CH3-wall

What is the molarity of a CsOH solution if 30.0 mL of the solution is neutralized by 26.4 mL 0.250M HBr solution

Write the formulas of the acids which liberated hydrogen gas when reacting with magnesium metal

The number 40 in the name calcium-40 represents A. the atomic number B. the number of protons in the atom C. the sum of the protons and neutrons D. none of these

The vapor pressure of benzene (C6H6) is 73.0 mm Hg at 25 °C. What is the vapor pressure of a solution consisting of 179 g of benzene and 0.217 mol of a nonvolatile nonelectrolyte?

Aldo drove 420 miles using 18 gallons of gas. at this rate, how many gallons of gas would he need to drive 357 miles

How many grams of As2S3 are in 3.25 moles?

How does a solid turn into a liquid

What does the Ka represent in the equation and why is it important?