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Dennis_Churaev [7]
3 years ago
14

A change of state does not affect an object's what?

Chemistry
1 answer:
DedPeter [7]3 years ago
3 0

Answer:

mass.

Explanation:

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Structure of isobutyl formate
Aliun [14]

Answer:

Isobutyl formate (2-methylpropyl methanoate) is an organic ester with the chemical formula C5H10O2. Used for flavor and fragrance because of its odor.

Explanation:

4 0
3 years ago
Describe a procedure to separate a mixture of sugar black pepper and pebbles
slamgirl [31]
Put the mixture in water, the pebbles will sink, the pepper will float, and the sugar will dissolve
7 0
3 years ago
2. I want to create a density bottle with 3 solutions called A, B and C. I put 45 ml of solution A
Tamiku [17]

Explanation:143

what i meant was thank you for the points but it is 143

4 0
3 years ago
How much energy (in J) is lost when a sample of iron with a mass of 26.4 g cools from 74.0 ∘C to 26.0 ∘C?
Greeley [361]

Answer:

Q=-526.6J

Explanation:

Hello,

In this case, for the computation of the energy loss when the cooling process is carried out, we use the shown below equation:

Q=mCp\Delta T

Whereas we need the mass, specific heat and change in temperature of iron within the process. Thus, the only value we need is the specific heat that is 0.444 J/(g°C), therefore, we compute the heat loss:

Q=26.4g*0.444\frac{J}{g\°C}*(26.0\°C-74.0\°C)\\ \\Q=-526.6J

Negative sign points out the loss due to the cooling.

Regards.

8 0
3 years ago
Which of the following is true about hydropower? It changes the surrounding ecosystem. It does not produce greenhouse gases. It
Whitepunk [10]

Answer:

A

Explanation:

One of the main complaints about hydropower is that it will change the ecosystem. You can read about the history of any dam and you will find that most of them have involved evacuation. That means that farmland was lost and replaced by a lake behind the dam. The energy comes from water cascading over the top of the dam to its bottom.

It does not produce radiation.

It does not burn fossil fuels. It's clean and does not pollute the air.

So there are no greenhouse gases involoved.

3 0
3 years ago
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