Chemistry, 03.09.2019 22:20 cristinanina
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during an experiment a thermometer was placed in a beaker containing hydrogen peroxide. the following observations were recorded when yeast granules were added to hydrogen peroxide.
observation 1: fizzing and bubbling took place.
observation 2: the temperature began to rise.
based on the observation, justify the type of change (physical or chemical) that took place.
Answers: 3
Chemistry, 22.06.2019 01:30
The table lists pressure and volume values for a particular gas. which is the best estimate for the value of v at p = 7.0 × 103 pascals?
Answers: 3
Chemistry, 22.06.2019 03:50
Consider the reaction: n2(g) + o2(g) ? 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?
Answers: 3
Chemistry, 22.06.2019 17:50
You exhale co2 which is produced during cellular respiration. co2 combines with the water in your blood's plasma to make up one half of the body's most important buffer pair, carbonic acid. the more physical activity you engage in, the more co2 your body is producing. you can see this by putting some of the cabbage indicator in a glass and then blowing bubbles into it through a straw. can you see a change in the color of the indicator?
Answers: 2
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during an experiment a thermometer was placed in a beaker containing hydrogen...
during an experiment a thermometer was placed in a beaker containing hydrogen...
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