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3 years ago

Can someone help with this please?

Chemistry

1 answer:

PtichkaEL [24]3 years ago

8 0

A and b are related because if u look carefully at what its showing u that there both the same but what its telling u is not the same.

a and c are the same but the picture is different and also the way they describe it is different and what they want u to look at is that if you look at it closely then youll know the difference and how to find it as well

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How many moles of argon are in 24.3 g of argon

maksim [4K]

Answer:

0.607mol

Explanation:

n(AR) = mass / molar máss

= 24.3 /40

=0.607

3 0

3 years ago

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Ariel drew the cladogram shown.

Sladkaya [172]

Answer:

It has hollow bones and jaws.

Explanation:

The cladogram shows that Species C has both hollow bones and Jaws. Species A has hollow bones while species B has Jaws. The cladograms shows that species C has both the characteristics.

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3 years ago

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What would be the volume in liters of an ideal gas, if a 0.425 mole sample of the gas had a temperature of 900 degrees celsius a

Karo-lina-s [1.5K]

The ideal gas law relates the pressure (P), volume (V), number of moles (n), and temperature (T) of a given ideal gas through the equation,

PV = nRT

If we are to determine the volume of the gas, we derive the equation such that it takes the form of,
V = nRT/P

Substituting,
V = (0.425 mol)(0.0821 L.atm/mol.K)(900 + 273 K) / 3 atm

V = 13.64 L

Thus, the volume of the ideal gas is approximately 13.64 L.

5 0

3 years ago

In his pamphlet Common Sense, Thomas Paine

kati45 [8]

In his pamphlet Common Sense, Thomas Paine urged American colonists to establish their own nation. The correct option among all the options that are given in the question is option "1". The pamphlet by Thomas Paine actually urged the colonists to denounce the British rule. He was of the opinion that it was not fair that an island would rule over a total continent.<span>He also wrote that being a part of Britain would unnecessarily drag America into unwanted wars with European countries.</span>

6 0

3 years ago

If a system has cind independent components, what is the maximum number of phases that can exist in equilibrium? (b) A given sys

stellarik [79]

Answer:

a) the maximum number of phases that can exist in equilibrium is $c_{ind$ + 2

b) the number of independent components in this system are 6

Explanation:

We know that, The degree of freedom f for a system can be simply referred to as number of variables that must be defined to completely solve a system.

If degree of freedom is 0, then any problem is can be solved.

a) If a system has cind independent components, what is the maximum number of phases that can exist in equilibrium?

The degree of freedom for a system can be written as;

f = $c_{ind$ - p + 2

where f is the degree of freedom

$c_{ind$ is the number of independent component

so we solve for $c_{ind$

$c_{ind$ = f + p - 2

we know that f can not be less than 0

Hence maximum possible face will be;

$c_{ind$ = p - 2

p = $c_{ind$ + 2

Therefore, the maximum number of phases that can exist in equilibrium is $c_{ind$ + 2

b) A given system has eight liquid phases in equilibrium with each other. What must be true about the number of independent components in this system?

Number of phases in the system p = 8

p = $c_{ind$ + 2

$c_{ind$ = p - 2

we substitute

$c_{ind$ = 8 - 2

$c_{ind$ = 6

Therefore, the number of independent components in this system are 6

7 0

2 years ago