Chemistry, 15.04.2021 18:10 richlovedarkwa5
Procedure:
Hypotheses - Read steps 1-4 below and write an if/then statement
about the results.
1. Put on your safety goggles.
2. Use the funnel to pour 120mL of hydrogen peroxide into the plastic
bottle.
3. Place 3 drops of food coloring into the hydrogen peroxide.
4. Add a tablespoon of dish soap to the hydrogen peroxide and food
coloring. Swirl the mixture around in the plastic bottle.
Check for Understanding
Does mixing the food coloring and hydrogen peroxide create a new
substance? Explain why or why not.
5. Stir the yeast into the warm water. Let it sit for 30 seconds.
6. Use the funnel to pour the yeast mixture into the bottle and record your
observations below.
Observations
Page 213
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Answers: 3
Chemistry, 22.06.2019 11:40
Consider this equilibrium: n29) + o2(g) + 2no(c).nitrogen gas and oxygen gas react when placed in a closed container. as the reaction proceeds towards equilibrium, what happens to the rate of thereverse reaction?
Answers: 1
Chemistry, 22.06.2019 13:10
Select the correct answer a modure consists of glucose and water. what is the percent composition of glucose in the mixture if it contains 1.3 moles of glucose (cho total mass of the mature is 276 grams? ) and the a 1775
Answers: 1
Chemistry, 22.06.2019 18:00
Answer asap need it by wednesday morning carry out the following calculations on ph and ka of from data. i. calculate the ph of 0.02m hcl ii. calculate the ph of 0.036m naoh iii. calculate the ph of 0.36m ca(oh)2 iv. calculate the ph of 0.16m ch3cooh which has ka = 1.74 x 10-5 mol dm-3 v. calculate ka for weak acid ha which has a ph of 3.65 at 0.30m concentration vi. calculate the ka of a solution made by mixing 15.0 cm3 0.2m ha and 60.0 cm3 0.31m a-. [ph= 3.80] vii. calculate the ph of a solution made by mixing 15.0 cm3 0.1m naoh and 35.0 cm3 0.2m hcooh. [ka = 1.82 x 10-4 m]
Answers: 1
Procedure:
Hypotheses - Read steps 1-4 below and write an if/then statement
about the results...
about the results...
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