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gtnhenbr [62]
3 years ago
15

Which action changes the identity of substance referenced

Chemistry
1 answer:
Scilla [17]3 years ago
5 0

Answer:

When iron turns to rust, the chemical identity of the iron changes. When you break ice, the ice is still ice

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What is the percent composition of the element hydrogen in the compound methane CH4
Tamiku [17]

Answer:

The answer is 25.14 percent. Hope this helps.

6 0
3 years ago
Acetone is a common solvent that has a density of 0.7899 g/mL. What volume of acetone, in milliliters, has a mass of 35.6 g?
lys-0071 [83]

Answer:

45.069 mL

Explanation:

mass/density=volume.

If we fill in the numbers provided, we would have:

35.6/0.7899=45.069

Don't forget to add your measurements!

45.069 mL

3 0
3 years ago
Please help with this question... It's six marks to could you put six marks....
professor190 [17]
Can you take a better pic cant see the questions
3 0
3 years ago
Considering the chart shown, at what temperature does the substance boil? 200ºC 1,200ºC 2,200ºC 2,400ºC
kodGreya [7K]

Answer:

The answer is 2,200ºC

Explanation:
I took the assignment for Edge, I don't think I can send the image because it might pick up on that and get reported, sorry!

The only other rationale that I have is that it's boiling because the graph shows that it's at a constant temperature/rate at 2,200ºC for quite a while. Typically when something boils, it stays at that constant rate of boiling, unless you turn the temperature up or it's finally able to peak..?

8 0
3 years ago
8 DO
Goryan [66]

Answer:

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