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xxTIMURxx [149]
3 years ago
7

I'm very confused can someone help me please I would really appreciate it

Chemistry
1 answer:
sasho [114]3 years ago
7 0
1. temperature is dependent
2. energy is independent
3. the graph looks like a line sloping upward
4. the line means that as energy increases the temperature also increases
5. a straight line would mean that as energy increases temperature remains constant
sorry that's all I can do
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Predict if rates of evaporation are higher than rates of condensation over a warm body of water. Explain your answer.
Studentka2010 [4]

Answer:

When water temperature increases (right), the rate of evaporation also increases. In turn, the amount of water vapor in the "air space" above the water increases. ... But, with increased evaporation, more water molecules exist in the air above the water, which in turn increases the condensation rate.

3 0
3 years ago
Which type of matter is composed or two or more elements that are chemically combined in a fixed proportion?
lions [1.4K]
Hello.

When dealing with two or more elements in a fixed proportion, your answer is going to be "B.) Compound." The explanation is pretty basic when you narrow it down - think of it like the English version of a compound sentence; there are two independent clauses that have related ideas (such as this one, for example).

Let's use an example of a compound element, such as H_{2}O, or Water.
This is a compound element that is composed of the two elements "Hydrogen" and "Oxygen" - for every 2 Hydrogen atoms there is one Oxygen atom.

I hope this helps!
6 0
3 years ago
Balance copper (II) sulphate + sodium hydroxide-> copper (II) hydroxide + sodium sulphate​
Eddi Din [679]

Answer:

CuSO4 + 2NaOh -> CuOH2 + Na2SO4

Explanation:

The sulphate ion is basically an anion(negatively charged ion) with a charge of overall -2. The hydroxide ion is also an anion with a charge of overall -1. Copper ion is described as copper (II) meaning that it has a charge of +2. Sodium is an alkali metal meaning that it has a charge of +1.

Now we know that the end results are copper hydroxide and sodium sulphate. Since the copper ion has a charge of +2, two hydroxide ions should bond with copper. The sulphate ion has a charge of -2, meaning that two sodium ions should bond with sulphate. There should be two sodium ions to bond with one sulphate ion and two hydroxide ions to bond with one copper ion. Therefore, the coeffiecient for sodium hydroxide should be two.

7 0
3 years ago
HELP!!! ITS TIMED!!
ikadub [295]
The answer is false
5 0
3 years ago
Which of the following could be a correct measurement using the full precision available for this balance?
Aleksandr [31]
The answer would be 24.0 because it is such a precise measurement.
7 0
3 years ago
Read 2 more answers
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