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lesantik [10]
3 years ago
14

Variables – this experiment tests how the temperature of water affects the time it takes for antacid tablets to dissolve. (they

drop an antacid in hot water and one in cold water)
• What is the independent variable? (2 points)
• What is the dependent variable? (2 points)
Chemistry
1 answer:
LUCKY_DIMON [66]3 years ago
6 0

Explanation:

You can think of independent and dependent variables in terms of cause and effect: an independent variable is the variable you think is the cause, while a dependent variable is the effect. In an experiment, you manipulate the independent variable and measure the outcome in the dependent variable.

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How many moles of carbon dioxide are produced when 5.12 moles of glucose undergoes a combustion reaction?
SVEN [57.7K]

Answer: 30.72 moles of CO_2 will be produced from 5.12 moles of glucose.

Explanation:

The balanced chemical equation for combustion of glucose is:

C_6H_{12}O_6+6O_2\rightarrow 6CO_2+6H_2O  

According to stoichiometry :

1 moles of glucose produce =  6 moles of CO_2

Thus 5.12 moles of glucose produce =\frac{6}{1}\times 5.12=30.72moles  of CO_2

Thus 30.72 moles of CO_2 will be produced from 5.12 moles of glucose.

8 0
3 years ago
I need help with these two
bearhunter [10]

Answer:

6. d,  7. a

Explanation:

6. Molarity is a number of moles solute in 1 L solution.

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x  =20*2.5/1 = 50 mol K2CO3

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99 g/mol *50 mol = 4950 g KCO3 Closest answer is A.

Actually KCO3 does not exist, in reality it should be K2CO3.

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hammer [34]

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Explanation:

4 0
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(sorry if it's wrong)

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