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Dmitrij [34]
3 years ago
11

Select the correct answer.

Chemistry
1 answer:
almond37 [142]3 years ago
3 0

Answer:

D. 5 moles

Explanation:

C3H8 + 5O2 → 4H2O + 3CO2

            5 mol                 3 mol

So, to make 3 mol CO2    5 mol O2 are needed.

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The compound IF5 contains Question 16 options: polar covalent bonds with partial negative charges on the F atoms. ionic bonds. p
larisa86 [58]

Answer:

See explanation

Explanation:

The molecule IF5 possesses five I-F polar bonds. However, the presence of polar bonds does not automatically imply that the molecule will be polar.

The geometry of the molecule is very important in determining the polarity of a compound. Since IF5 has a lone pair of electrons, the molecule is bent and as such there is a permanent dipole moment created in the molecule thereby making IF5 polar in nature.

6 0
3 years ago
To make use of an ionic hydrate for storing solar energy, you place 422.0 kg of sodium sulfate decahydrate on your house roof. A
Law Incorporation [45]

Complete Question

To make use of an ionic hydrate for storing solar energy, you place 422.0 kg of sodium sulfate decahydrate on your house roof. Assuming complete reaction and 100% efficiency of heat transfer, how much heat (in kJ) is released to your house at night? Note that sodium sulfate decahydrate will transfer 354 kJ/mol.

Answer:

The amount of energy released is x = 4.63650 *10^5 KJ

Explanation:

Number of moles is mathematically represented as

                         n =\frac{mass}{Molar\ Mass}

substituting 422.0kg = 422 *10^3g for mass of sodium sulfate decahydrate(Na_2 SO_4 \cdot 10H_2 O), 322.2g/mol (This value is a constant )for the molar mass of sodium sulfate decahydrate

                        n= \frac{422*10^3}{322.2}

                           = 1309.7 \ moles

From the question we are told that

            1 mole of sodium sulfate decahydrate generates 354KJ of energy

         So  1309.7 mole would generate  x

Now stating the relation mathematically

                 1 mol → 354KJ

                 1309.7 mol → x

=>      x = 4.63650 *10^5 KJ

                   

5 0
3 years ago
What is drag? In what situations might it act on the force of gravity?
HACTEHA [7]
Drag is the force pushing against a forward motion.
3 0
3 years ago
Is clo− a stronger or weaker base than hydroxylamine?
Levart [38]


Clo− is a stronger base than hydroxylamine
<span>Clo−</span> (Hypochlorite ion) which is composed of chlorine and oxygen is a stronger base than hydroxylamine.The stronger acid will have the weaker conjugate base. Hydroxylamine, as the stronger acid, will have the weaker conjugate base and the hypochlorite ion will be the stronger base.<span />






7 0
3 years ago
Read 2 more answers
.sdfadgdhfssadfsghdaesrdthfytgrf
Ivahew [28]
This problem is undefined
6 0
3 years ago
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