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3 years ago

I’m stuckkkkkk please help

Chemistry

2 answers:

Nat2105 [25]3 years ago

7 0

Answer:

Explanation:

I think...........maybe

ololo11 [35]3 years ago

5 0

The answer is A, I hope this helps

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4 As a boulder rolls from the top of a hill to the bottom, how do its potential and kinetic energy change? *

user100 [1]

Answer:

c. Potential decreases and kinetic increases.

Explanation:

As the boulder is rolling down the hill, potential energy decreases as kinetic energy increases.

Please Brainliest me

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3 years ago

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Is vinegar a mixture or a pure substance?

Vikki [24]

Vinegar is a mixture cause its composed of water and acetic acid.

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4 years ago

Using the phase diagram for water, what phase is water at 0.01 degrees Celsius and 0.0060 atmospheres?

anzhelika [568]

Answer: at 0.01 °C and 0.0060 atm the three phases (solid, liquid and gas)


Explanation:


1) Water at 0.0060 atm and 0.01° C is at its triple point.


2) The triple point is the point in the phase diagram at which the three physical states coexist: gas, liquid and solid.

3) That means that water can freeze and boil at the same time. In fact they can happen any of the six changes of phase: freezing (liquid to solid), melting (solid to liquid), evaporation (liquid to gas), condensation (gas to liquid), sublimation (solid to gas), and deposition (gas to solid).

The phase diagram is unique for any substance, meaning that it is different for different substances: the normal boiling and melting points are different.

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4 years ago

Because it is a cycle,the water cycle has no ___________ or ________

natima [27]

No beginning or end I believe

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3 years ago

Aluminum has a specific heat of 897 j/kg c. methanol has a specific heat of 2450 j/kg c.

Vikki [24]

Answer:

$\sf \: correct \: answer \: would \: be \: methanol!$

Explanation:

Specific Heat: The specific Heat of any material is the heat absorbed or evolved by the material to raise or fall it's temperature by 1°C per unit mass of the material.

The heat absorbed or evolved (Q) is directly proportional to the mass of substance(m) and rise or fall of temp(∆T)

The general formula for specific heat is,

$\sf \: \: \: \: \: s = \frac{Q}{m\Delta T}$

Where

s is specific heat,
Q is the Heat absorbed or evolved
m is mass of substance
& ∆T is change is temperature

Now coming to your question,

The specific heat of Aluminium is 897 J/kg °C

The specific heat of Aluminium is 897 J/kg °C& specific heat of methanol is 2450 J/kg ° C

The definition states that, if the specific heat would be more, more amount of heat will be required for per unit change in temperature.

The specific heat of Aluminium is 897 J/kg °C which means for one kilogram aluminium, 897 Joule energy is required to change it's temperature by 1°C & Similarly for one kilogram methanol 2450 joule energy is required.

Hence, the correct answer would be methanol!

learn more about specific heat here,

brainly.com/question/27365354

brainly.com/question/27598037

$\small \sf \: Thanks \: for \: joining \: brainly \: community!$

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2 years ago