Some table salt substitutes have potassium chloride in them. If you consume potassium chloride, are you truly eating potassium and chlorine atoms? Support your answer with chemical evidence.

Calculate the quantity of energy required to change 8.22 mol of liquid water to steam at 100oc. the molar heat of vaporization of water is 40.6 kj/mol.

How is the rate of appearance of h2o related to the rate of disappearance of o2?

If a solution has virtually no hydrogen ions, what type of pH does it have? 0 2 7 13

Suppose that 2.5 mmol n2 (g) occupies 42 cm3 at 300 k and expands isothermally to 600 cm3. calculate Î'gm in kj/mol for the process. hint: boyle's law p1v1=p2v2

Po-218 is an alpha emitter with a half-life of 3.0 minutes. if a sample contains 59 mg of po-218, how many alpha emissions would occur in 9.0 minutes?

Plants make their own food. The chemical reaction for this process is shown in the equation below. CO2 + H2O + energy → C6H1206 + O2 What are the products in this chemical reaction? O A. C6H1206 + energy O B. H20 + energy O C. CoH1206+02 O D.

Using ohm's law, explain how voltage changes in relation to current, assuming that resistance remains constant.

An average copper penny minted in the 1960s contained about 3.000 g of copper. how much chalcopyrite had be mined to produce 100 pennies?

Which pack has the greatest change in enthalpy, warm packs (such as hand warmers) or cold packs (such as an ice pack) ?

A gay cylinder what are the variables in gay-lussacs law