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mafiozo [28]
2 years ago
5

Plss answer due in 3 minutes!!..yeesh

Chemistry
1 answer:
goldfiish [28.3K]2 years ago
5 0
Answer : A and D shows PROCESS of sweating
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b Different amounts of food samples were used.

Explanation:

The mass of the two samples needs to be the same in order for the test to be accurate.

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What element is necessary for a healthy eye
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mars1129 [50]
Here are the possible answers for the following questions above:
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6 0
3 years ago
Read 2 more answers
Help?
tino4ka555 [31]

Answer:

There is 52.33 grams of water produced.

Explanation:

Step 1: Data given

Mass of propane burned = 32.00 grams

Molar mass of propane = 44.1 g/mol

Oxygen is in excess

Molar mass of water = 18.02 g/mol

Step 2: The balanced equation

C3H8 + 5O2 → 4H2O + 3CO2

Step 3: Calculate moles of propane

Moles of propane = mass propane / molar mass of propane

Moles of propane = 32.00 grams / 44.1 g/mol

Moles of propane = 0.726 moles

Step 4: Calculate moles of H2O

Propane is the limiting reactant.

For 1 mol of propane consumed, we need 5 moles of O2 to produce 4 moles of H2O and 3 moles of CO2

For 0.726 moles of propane we'll have 4*0.726 = 2.904 moles of H2O

Step 5: Calculate mass of H2O

Mass of H2O = moles of H2O * molar mass of H2O

Mass of H2O = 2.904 moles * 18.02 g/mol

Mass of H2O = 52.33 grams

There is 52.33 grams of water produced.

3 0
3 years ago
101.325 kPa = 760 mmHg. So, 25.0 kPa is
gogolik [260]
101.325 kPa = 760 mmHg.
So, 25.0 kPa is 187.515 mmHg
5 0
3 years ago
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