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lys-0071 [83]
3 years ago
6

PLEASE HELP WITH MY CHEM ASSIGNMENT!!!

Chemistry
1 answer:
aalyn [17]3 years ago
6 0

Answer: 209.2

Explanation:

4. q = mcat

    q = 5g(4.184)(40-50)

    q = -209.2

the negative sign indicates that heat is given off

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In the simple cubic unit cell, the centers of ____________ identical particles define the ____________ of a cube. The particles
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Answer:

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2 years ago
These little bunnies (A, B, and C) were born in the same litter to the same parents, but they have different traits for the feat
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Answer:

Due to random assortment and incomplete dominance of alleles.

Explanation:

The bunnies end up with ear thicknesses that are different from one another due to random assortment of alleles during gamete formation according to Mendel.

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3 years ago
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5 0
3 years ago
Read 2 more answers
Given:
bulgar [2K]

Answer:

The combustion of 59.7 grams of methane releases 3320.81 kilojoules of energy

Explanation:

Given;

CH₄ + 2O₂ → CO₂ + 2H₂O, ΔH = -890 kJ/mol

From the combustion reaction above, it can be observed that;

1 mole of methane (CH₄) released 890 kilojoules of energy.

Now, we convert 59.7 grams of methane to moles

CH₄ = 12 + (1x4) = 16 g/mol

59.7 g of CH₄ = \frac{59.7}{16} = 3.73125 \ moles

1 mole of methane (CH₄) released 890 kilojoules of energy

3.73125 moles of methane (CH₄) will release ?

= 3.73125 moles x  -890 kJ/mol

= -3320.81 kJ

Therefore, the combustion of 59.7 grams of methane releases 3320.81 kilojoules of energy

5 0
3 years ago
PLEASE ANSWER ASAP (WILL GIVE BRAINLIEST)
Flauer [41]

Answer:

I think it is either A. or B.

Explanation:

(I think!)

5 0
2 years ago
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