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jekas [21]
3 years ago
12

Cutting, melting, bending, or crushing are examples of what kind of change?

Chemistry
2 answers:
Ksivusya [100]3 years ago
8 0

Answer:

those are all physical changes and most physical changes can be undone like crushing a pice of metal you can flatten it back out you anwser is physical change

Explanation:

Fynjy0 [20]3 years ago
4 0

Answer:

It is a physical change because it can be reversed back and no new subtances is dormed.

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What color of light refracted the most as it passes through a prism?
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It would be Violet because it has the shortest wave length, while red has the longest wave length so it comes out the least of the colors.
4 0
3 years ago
Which of the following additions to alkenes occur(s) specifically in an syn fashion?
BlackZzzverrR [31]

Answer:

E) A, B, and C

Explanation:

Syn addition refers to the addition of two substituents on the same face or side of a double bond. This differed from anti addition which a occurs across opposite face of the double bond.

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8 0
2 years ago
You carefully weigh out 20.00 g of CaCO3 powder and add it to 81.00 g of HCl solution. You notice bubbles as a reaction takes pl
Zepler [3.9K]

Answer:

The relevant equation is:

CaCO₃ + 2HCl → CaCl₂ + H₂O + CO₂

Explanation:

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The formed CO₂ is the reason why you noticed bubbles as the reaction took place

3 0
3 years ago
A hot toluene stream, which has mass flow rate of 8.0 kg/min, is cooled by cooling water in a cocurrent heat exchanger; its temp
Alex Ar [27]

Complete Question  

The complete question is shown on the first question

Answer:

a) The duty of the heat exchanger is given as 6.8658 KJ /sec

b) The temperature of the water leaving the exchanger is TOUT = 29.84 ⁰C

c) The log mean difference is given as TZ = 47.317 ⁰ C

d) the UA value is UA = 145.10

Explanation:

The explanation is uploaded on the first and second ,third and fourth image

3 0
3 years ago
How do electrons populate atoms?
lutik1710 [3]
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7 0
3 years ago
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