Passing an electric current through a sample of water (h2o) can cause the water to decompose into hydrogen gas (h2) and oxygen gas (o2) according to the following equation. 2h2o mc026-1.jpg 2h2 + o2 the molar mass of h2o is 18.01 g/mol. the molar mass of o2 is 32.00 g/mol. what mass of h2o, in grams, must react to produce 50.00 g of o2? 14.07 23.05 28.14 56.28

Which of the following best explains why the end of a spoon sticking out of a cup of hot water also gets hot? question 7 options: the heat from the hot water is conducted through the spoon handle the hot water heats the air surrounding the upper part of the spoon. the hot water causes a physical change in the spoon handle. the hot water causes a chemical reaction to take place in the spoon.

Abeaker with 2.00×102 ml of an acetic acid buffer with a ph of 5.000 is sitting on a benchtop. the total molarity of acid and conjugate base in this buffer is 0.100 m. a student adds 4.70 ml of a 0.360 m hcl solution to the beaker. how much will the ph change? the pka of acetic acid is 4.740.

Using the first volume and temperature reading on the table as v1 and t1, solve for the unknown values in the table below. remember to use the rules of significant figures when entering your numeric response.