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3241004551 [841]
3 years ago
15

Câu 3: Nêu phương pháp hóa học nhận biết các dung dịch không màu sau: (a) HCI, NaOH, H2SO,, NaCl. (b) HNO3. KOH, BaCl. Ca(OH)2.

Ba(NO3)2 (c) MgCl2, KCl, CuCl2, FeCl3, FeCl2 (chỉ dùng một thuốc thử). (d) Na2CO3, BaCl2, NaNO3 (chỉ dùng một thuốc thử)
​
Chemistry
1 answer:
True [87]3 years ago
5 0

Answer:

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What are two variables that affect kinetic energy
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The answer for the following questions is explained below.

Explanation:

The two variables that affect kinetic energy are:

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The kinetic energy of an object depends on both its mass and its velocity

Kinetic energy increases as mass increases

For example,think about rolling a bowling ball and a golf ball down a bowling lane at same velocity

Here,the bowling ball has more mass than the golf ball

Therefore you use more energy to roll the bowling ball than to roll the golf ball

The bowling ball is more likely to knock down the pins because it has more kinetic energy than the golf ball

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A sample of carbon-12 has a mass of 6.00 g. How many atoms of carbon-12 are in the sample?
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