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3 years ago

1.) What coefficient values will balance the reaction shown? CH4 + O2 ?CO2 + H2O

Chemistry

1 answer:

Varvara68 [4.7K]3 years ago

5 0

Answer:

It's simpler than most questions :)

Explanation:

1) B

2) B

3) D

4) A

5) A

Hope this will help :)

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Given a gas with an initial volume of 3.0 L and a temperature of 290 K, what is the final volume if the

statuscvo [17]

Answer:

2.8l

Explanation:

just make v2 de subject

6 0

2 years ago

What is the name of this molecular compound ? F6I5 PLEASE AND THANK YOU

lawyer [7]

Answer:

Hexaflourine Pentaiodide?

Explanation:

f = flourine (6 = hexa)

i = iodine (5 = penta) + ide

5 0

3 years ago

A serving of soup contains 5.0 g of fat, 20.0 g of carbohydrates, and 3.0 g of protein. Determine how many kilocalories (kcal) a

marta [7]

Answer: The amount of kilocalories contained in the given serving of soup is 0.137 kCal

Explanation:

As per the USDA:

Carbohydrates provide 4 calories per gram, protein provides 4 calories per gram, and fat provides 9 calories per gram.

We are given

Mass of fat in the soup serving = 5.0 g

Mass of carbohydrates in the soup serving = 20.0 g

Mass of protein in the soup serving = 3.0 g

Conversion factor used: 1 kCal = 1000 Cal

Applying unitary method:

For Fat:

1 gram of fat provides 9 calories

So, 5.0 gram of fat will provide = $\frac{9}{1}\times 5.0=45Cal=0.045kCal$

For Carbohydrates:

1 gram of carbohydrates provides 4 calories

So, 20.0 gram of carbohydrates will provide = $\frac{4}{1}\times 20.0=80Cal=0.080kCal$

For Proteins:

1 gram of proteins provides 4 calories

So, 3.0 gram of fat will provide = $\frac{4}{1}\times 3=12Cal=0.012kCal$

Total kilocalories per serving = [0.045 + 0.080 + 0.012] kCal = 0.137 kCal

Hence, the amount of kilocalories contained in the given serving of soup is 0.137 kCal

4 0

2 years ago

How quickly must non-frozen ready-to-eat foods be consumed?

Alexxandr [17]

Answer:

i believe 24 hours

Explanation:

3 0

2 years ago

Read 2 more answers

How many moless is 4.91x10^22 molecules of H3PO4?

Lynna [10]

1 mol = 6.023x10^23 number of molecules (Avogadro's number)

1 : 6.023x10^23
X : 4.91x10^22

(6.023x10^23)X = 4.91x10^22

X = 4.91x10^22/6.023x10^23

X = 0.082 Moles

6 0

3 years ago