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Alexandra [31]
3 years ago
7

SOMEONE HELP PLEASE 60 POINTS!!!!!!! IM TIMED TOO SO PLS

Chemistry
1 answer:
Sergeu [11.5K]3 years ago
4 0

Explanation:

ooohhhh it's free points,,,thank you mwahhh hahahahahaha jokeee

sorry I don't have any ideas

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How does changing the volume or temperature of a gas affect the pressure of that gas?
Masja [62]

Answer:

When a gas occupies a smaller volume, it exerts a higher pressure; when it occupies a larger volume, it exerts a lower pressure (assuming the amount of gas and the temperature do not change). Since P and V are inversely proportional, a graph of 1/P vs. V is linear.

Explanation:

<h2><u><em>This is all I know.</em></u></h2><h2><u><em>Hope it helps~</em></u></h2><h2><u><em>Good luck with your work!!~</em></u></h2>
6 0
3 years ago
Are these exo/endothermic
Anika [276]
1) endothermic
2)exotgermic
3)exotgermic
4 0
3 years ago
List and describe the three rock types in the rock cycle including two or more processes involved in the formation of each type
denis23 [38]

There are three rock types in the rock cycle including: igneous, sedimentary, and metamorphic rock.

<u>Explanation:</u>

Any solid or combination of minerals which naturally occurs is understood as a rock. It is classified by the contained minerals, its chemical composition and the manner it is made.

<u>Igneous Rocks:</u> It is generated by magma or lava being refrigerated and solidified. The magma may be produced from partial melting of established rocks, either in the mantle or crust of a planet. The melting is usually caused by one or more of three methods: temperature rise, pressure decrease, or composition transition.

<u>Sedimentary Rocks:</u> These forms that are developed by aggregation or deposition of tiny particles and eventual cementation of mineral or organic substances on the surface of the Earth's ocean floor or other water bodies. Sedimentation is the general term for mechanisms that cause settlement of such particles.

<u>Metamorphic Rocks:</u> These occur from the alteration of different rock types in a technique called metamorphism, which implies change of shape. The initial rock or protolith is heated where temperatures between 150 to 200 ° C and a pressure level of 100 megapascals (1,000 bar) or more induces significant physical or chemical changes.

8 0
3 years ago
What is the molarity (M) of an 85.0-mL solution (total volume) containing 1.77 g of ethanol (C2H5OH)
Liono4ka [1.6K]

Answer: The molarity of solution is 0.453 M

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

Molarity=\frac{n\times 1000}{V_s}

where,

n = moles of solute

V_s = volume of solution in ml

moles of C_2H_5OH = \frac{\text {given mass}}{\text {Molar mass}}=\frac{1.77g}{46g/mol}=0.0385mol

Now put all the given values in the formula of molality, we get

Molarity=\frac{0.0385\times 1000}{85.0}

Molarity=0.453

Therefore, the molarity of solution is 0.453 M

7 0
3 years ago
Which element represents 16 protons and 16 neutrons
IgorC [24]
Surfer
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sulphur has atomic number 16, which signifies that it has 16 electron and 16 protons and 16 neutron
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