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Hunter-Best [27]

3 years ago

14

What happens when water reaches its boiling point?

1 answer:

Luda [366]3 years ago

3 0

Answer:

khi sôi nhiệt độ của nước đạt 100oC, đến lúc này một phần nước sôi sẽ biến thành hơi nước, hơi nước sẽ đùn lên phá vỡ mặt nước và bốc hơi vào không khí, hình thành lên hiện tượng sôi của nước. Nước sôi đánh dấu mốc chuyển đổi trạng thái từ nước (thể lỏng) sang hơi nước (thể khí).

Explanation:

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An atom has 18 neutrons and 17 proton. a) How many electrons are in this atom

Paul [167]

Answer:

17 electron

Explanation:

because the number of the proton and number of electron is equal if ther is no charge

7 0

3 years ago

If winds blow against a mountain from the south, then on which slope would you find the least precipitation?

Aleksandr-060686 [28]

The northern slope will have the least precipitation if winds blow against a mountain from the south.

<h3>What is Slope?</h3>

This is referred to as the degree of steepness on a surface such as rocky areas etc.

When wind blows on the southern part of a mountains, it gets stuck which is why the northern slope have the least precipitation.

Read more about Slope here brainly.com/question/24208141

#SPJ1

4 0

2 years ago

Geologists may choose to lick a mineral to identify it. What mineral is the geologist expecting with this test?

Archy [21]

<span>NaCl (halite) or KCl (sylvite) </span>

8 0

3 years ago

7. If a waste container has 87.0 mL of 0.234 M acetic acid, how many milliliters of 2.00 M sodium

Naya [18.7K]

Answer:

$V_{base}=10.2mL$

Explanation:

Hello.

In this case, since the neutralization of the acid requires equal number of moles of both acid and base:

$n_{acid}=n_{base}$

Whereas we can express it in terms of concentrations and volumes:

$M_{acid}V_{acid}=M_{base}V_{base}$

Thus, we can compute the volume of sodium hydroxide (base) as follows:

$V_{base}=\frac{M_{acid}V_{acid}}{M_{base}} \\\\V_{base}=\frac{87.0mL*0.234M}{2.00M}\\ \\V_{base}=10.2mL$

Best regards.

8 0

3 years ago

A 2.3 kg object has 15 ) of kinetic energy. Calculate its speed.

chubhunter [2.5K]

Answer:

<h3>The answer is option D</h3>

Explanation:

To find the speed given the kinetic energy and mass we use the formula

$v = \sqrt{ \frac{2KE}{m} } \\$

where

m is the mass

v is the speed

From the question

KE = 15 J

m = 2.3 kg

We have

$v = \sqrt{ \frac{2 \times 15}{2.3} } = \sqrt{ \frac{30}{2.3} } \\ = 3.61157559...$

We have the final answer as

<h3>3.6 m/s</h3>

Hope this helps you

7 0

4 years ago