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4 years ago

Explain, in terms of molecular formulas and structural formulas, why cyclopropane is an

Chemistry

1 answer:

forsale [732]4 years ago

8 0

In terms of molecular formulas and structural formulas, the reason why cyclopropane is an isomer of propane is because it has same formula , but different structure

hope this helps

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4. When 732 grams of water was heated, it absorbed 1962 Joules of heat. The original temperature of the water was 45°C. What was

SCORPION-xisa [38]

Answer:

$T_{final} =45.64C$ =final temperature

Explanation:

In the question specific heat of water is not given but we should know the value of that and it 4.18Jg∘C

Specific heat means how much heat is required to increase the temperature of 1 gram of substance that substance by 1∘C .

Equation between heat lost or gain and the change in temperature.

q=m⋅c⋅ΔT , where

q - the amount of heat

m - the mass of the sample

c - specific heat of sample

ΔT - change in temperature

put all the given value into this ,

$q=m\times c \times \Delta T$

$\Delta T=\frac{q}{mc} =\frac{1962}{732 \times 4.18}$

$\Delta T= 0.64C$

$T_{final} -T_{initial} =0.64C$

$T_{final} =45.64C$ =final temperature.

8 0

4 years ago

One of the waste byproducts of a nuclear reactor using uranium-235 is strontium-90 with half-life of about 28 years. If we have

e-lub [12.9K]

Answer:

(a) 140 years

(b) 3.125 pounds

Explanation:

<u>QuestIons</u>

(a) How long is five half-life

(b) How much radioactive strontium is left after five half-life

Given that:

Half-life is about 28 years; &

There are 100 pounds of this radioactive waste

Five half-life will be;

= 28 × 5

= 140 years

The amount of radioactive remaining after five half-life is:

$= 100 \times( \dfrac{1}{2}) ^5$

= 100 × 0.03125

= 3.125 pounds

5 0

3 years ago

Write the equilibrium-constant expression for the reactionA(s)+3B(l)↽−−⇀2C(aq)+D(aq)A(s)+3B(l)↽−−⇀2C(aq)+D(aq)in terms of [A], [

Ilia_Sergeevich [38]

Answer:

$K_{c} = [\text{C}]^{2}[\text{[D]}$

Explanation:

$\rm A(s)+3B(l) \, \rightleftharpoons \, 2C(aq)+D(aq)$

The general formula for an equilibrium constant expression is

$K_{c} = \dfrac{[\text{Products}]}{[\text{Reactants}]}$

Solids and liquids are not included in the equilibrium constant expression.

Thus, for this reaction,

$K_{c} = [\textbf{C}]^{\mathbf{2}}\textbf{[D]}$

3 0

3 years ago

Sodium chloride (NaCl)

castortr0y [4]

Silver (Ag) is a metal, and is thus the most likely to be malleable. NaCl (sodium chloride, or salt) is brittle and a typical ionic compound in terms of its properties. Nitrogen and propane are generally gases or liquids.

8 0

3 years ago

Whats the answer to #11

morpeh [17]

Well, one mole would be considered as 6.02 x 1023 (atoms). Which in the copper form, this would be considered to be as 63.66 grams of copper. Know, by knowing this information, we're now able to figured out the question.

53.3 ÷ (atoms) 6.02 x 1023 ...

Which as a result, we then have 2665 over.

8 0

3 years ago