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Bess [88]
3 years ago
7

If a decrease in temperature accompanies a reaction, what occurred?

Chemistry
2 answers:
Setler [38]3 years ago
6 0

Answer:

The correct answer is: D. Energy was absorbed.

Explanation:

I took the test and this was the correct answer.

Sliva [168]3 years ago
3 0

Answer:

Energy was released

Explanation:

Decrease in temperature means less energy, but the energy had to have been transferred because energy can't be destroyed or created. So if the temp. went down, energy must have been lost. (If it had been absorbed, the temp. would have gone up)

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4 years ago
Titanium will react with magnesium oxide but sodium reacts with titanium oxide.
yuradex [85]

Answer:

below sodium but above magnesium

Explanation:

It is necessary to note that only a metal that is above another metal in the activity series can displace it from its compound.

The first statement said that titanium reacts with magnesium oxide. The implication of this is that titanium can displace magnesium from its oxide. This is only possible if titanium is above magnesium in the activity series.

The second statement says that sodium reacts with titanium oxide. This implies that sodium metal can displace titanium from its oxide. For this to occur, then sodium must be above titanium in the activity series of metals. Hence the answer above.

5 0
3 years ago
Which of these is NOT a characteristic of metals and their ability to form metallic bonds?
den301095 [7]

Answer:

The correct answer is C) insulator

Explanation:

The characteristics of metals consist of conductivity (for example of heat), malleability (deformation property) and ductility (stretching capacity).

4 0
4 years ago
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chubhunter [2.5K]
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Which word means a process in which some substances change into different substances?
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That is Chemical reaction

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