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viktelen [127]
3 years ago
5

The gills, Y, of a fish are usually near external openings that allow water

Chemistry
1 answer:
Lady bird [3.3K]3 years ago
7 0
Soooooo the answer is b
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A container of hydrogen gas has the same temperature as a container of oxygen gas. The gas atoms having the greater average kine
user100 [1]

Answer:

hope this helps

Explanation:

The atoms of hydrogen have smaller mass than oxygen. Thus their speeds have to higher in order to produce the same average kinetic energies.

4 0
3 years ago
Aliyah marks a line on her driveway with a piece of chalk and another line 50ft away Then she stands with both feet at the line
Mariulka [41]

Answer:

Speed

Explanation:

Aliyah must have been trying to find her speed.

The speed is a measure of how fast an object or a body is and it is calculated by finding the ratio of distance with time. Mathematically,

  speed = \frac{distance}{time} with a unit of m/s.

<em>Hence, with the distance measured on the ground and Aliyah trying to find the time it will take her to cover the distance while running, she must have been trying to find how fast she can run, that is, speed. </em>

3 0
3 years ago
An atom is electrically neutral because
serg [7]

Answer:

c

Explanation:

neutrons have no charge

protons and electrons have opposite charges and balance each other out in equal numbers

7 0
3 years ago
Why is it important to calibrate your pipet before beginning an experiment?
den301095 [7]

Answer:

To ensure provide and reliable data

Explanation:

Calibration ensures precise repeatable performance while preventing pipetting errors. Just the way measurement standards are established to distinguish valid and invalid processes, pipette calibration standards are designed to ensure the best pipette accuracy.

3 0
3 years ago
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Why does the temperature stop rising while ice melts into water?
Leya [2.2K]
A.
Because no more heat is being added to the system
3 0
3 years ago
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