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krok68 [10]
3 years ago
5

Which TWO trends do the data show TWO answers Giving Brainliest Explain your answer:)

Chemistry
2 answers:
lapo4ka [179]3 years ago
3 0

Answer:

C and D

Explanation:

C: You can tell from the pattern there is obviously a cycle it is following

D: When the line spikes you can see there are multiple warm temp spikes

Natali [406]3 years ago
3 0

Answer:

C and D is the answer. Plz mark as brainliest.

Explanation:

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All physical changes can be identified at the macroscopic level. true or false
Aliun [14]

Answer:

True

Explanation:

The physical changes are reversible in most cases and these changes are not the chemical changes which means that it is only the change in its state not in their nature. Just take the example of water, on cooling it becomes solid and change in color can be seen which is white in solid form and colorless in liquid form. This is also reversible and is a physical change. This means that physical changes can be identified at macroscopic level. Hence the answer is true.

5 0
3 years ago
I really need help with this assignment
Mumz [18]

Answer:

A. Sublimation of camphor

8 0
3 years ago
A solution is made by adding 29.1 mL of concentrated perchloric acid ( 70.5 wt% , density 1.67 g/mL ) to some water in a volumet
Lera25 [3.4K]

Answer:

The concentration of the solution is 1.364 molar.

Explanation:

Volume of perchloric acid = 29.1 mL

Mass of the solution = m

Density of the solution = 1.67 g/mL

m=1.67 g/mL\times 29.1 mL=48.597 g

Percentage of perchloric acid in 48.597 solution :70.5 %

Mass of perchloric acid in 48.597 solution :

= \frac{70.5}{100}\times 48.597 = 34.261 g

Moles of perchloric acid = \frac{34.261 g}{100.46 g/mol}=0.3410 mol

In 29.1 mL of solution water is added and volume was changed to 250 mL.

So, volume of the final solution = 250 mL = 0.250 L (1 mL = 0.001 L)

Molarity=\frac{Moles}{Volume (L)}

=\frac{0.3410 mol}{0.250 L}=1.364 M

The concentration of the solution is 1.364 molar.

6 0
3 years ago
2. What is the name of the following compound? *
alexgriva [62]
Answer: Cesium Nitrate
4 0
3 years ago
Someone plz help me
a_sh-v [17]

Answer:

A experimental investigation

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2 years ago
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