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Fed [463]
3 years ago
5

Short structures that cover the outside of some protists and help them move are called what?

Chemistry
1 answer:
sashaice [31]3 years ago
7 0
Cilia is the answer i think , sorry if i am wrong
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a sample of gas with a volume of 30.0 ml at 25.0 °c is heated to 50.0 degrees celsius. what is the new volume of the gas?
mart [117]

Answer : The new volume of the gas is, 32.5 mL

Explanation :

Charles' Law : It states that volume of the gas is directly proportional to the temperature of the gas at constant pressure and number o moles of gas.

Mathematically,

\frac{V_1}{T_1}=\frac{V_2}{T_2}

where,

V_1\text{ and }T_1 are the initial volume and temperature of the gas.

V_2\text{ and }T_2 are the final volume and temperature of the gas.

We are given:

V_1=30.0mL\\T_1=25.0^oC=(25.0+273)K=298K\\V_2=?\\T_2=50.0^oC=(50.0+273)K=323K

Putting values in above equation, we get:

\frac{30.0mL}{298K}=\frac{V_2}{323K}\\\\V_2=32.5mL

Therefore, the new volume of the gas is, 32.5 mL

4 0
3 years ago
In the modern periodic table, which of the following represents the last pair of elects for which Newlands' Law of Octaves would
Paladinen [302]

Answer: Mg and Ca

Explanation:

3 0
3 years ago
A layer of sandstone is found on top of a layer of shale. What most likely happened in this area?
storchak [24]

Answer:

Mud was deposited first, then sand.

Explanation:

This could have been a tidal mud flat succeeded by a sandy beach, or along the bed and course of a river with either mountain building upstream causing faster flow and carrying of mud farther away or the sea level falling with mud deposits being found closer to the new coastline. Hope this helps!

4 0
3 years ago
Salt is ionic, and oil is covalent. If you add water, the salt will dissolve in the water, and the oil will float to the top. Yo
Softa [21]

Is this a question?

Cause if it is I dont understand it.

4 0
3 years ago
Which of the following indicates that a chemical reaction system has reached equilibrium?
navik [9.2K]
D) if stuff is changing then the reaction is hardly in equilibrium is it? Everything is just chilling at equilibrium so there would be constant concentration
4 0
3 years ago
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