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lubasha [3.4K]
3 years ago
8

The smallest unit of an element that can exist either alone or in combination with other such particles of the same or different

elements is the
А.
electron
B
proton
neutron
D
atom
Chemistry
1 answer:
Mekhanik [1.2K]3 years ago
5 0

Answer

im not quite sure but I think the answer is <em>D atom</em><em> </em>

Explaination

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Suppose that the volume of a particular sample of Cl2 is 718 mL at 675 mmHg and 48C at what temperature in C will the volume be
Kryger [21]

Answer:

1900 °C

Step-by-step explanation:

This looks like a case where we can use the <em>Combined Gas Law</em> to calculate the temperature.

p₁V₁/T₁ = p₂V₂/T₂               Multiply both sides by T₂

p₁V₁T₂/T₁ = p₂V₂                 Multiply each side by T₁

p₁V₁T₂ = p₂V₂T₁                   Divide each side by p₁V₁

T₂ = T₁ × p₂/p₁ × V₂/V₁  

=====

Data:

We must convert the pressures to a common unit. I have chosen atmospheres.

p₁ = 675 mmHg × 1atm/760 mmHg = 0.8882 atm

V₁ = 718 mL = 0.718 L

T₁ = 48 °C = 321.15 K

p₂ = 159 kPa × 1 atm/101.325 kPa = 1.569 atm

V₂ = 2.0 L

T₂ = ?

=====

Calculation:

T₂ = 321.15 × 1.569/0.8882 × 2.0/0.718  

T₂ = 321.15 × 1.766 × 2.786  

T₂ = 321.15 × 1.569/0.8882 × 7.786  

T₂ = 1580K  

T₂ = 1580 + 273.15

T₂ = 1900 °C

<em>Note</em>: The answer can have only <em>two</em> significant figures because that is all you gave for the second volume of the gas.

4 0
3 years ago
Exactly 313.5 J will raise the temperature of 10.0 g of a metal from 25.0 C to 60.0 C. What is the specific heat of the metal?
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c_e = \frac{Q}{m\cdot \Delta T}\ \to\ c_e = \frac{313.5\ J}{10\ g\cdot (60 - 25)^\circ C} = \bf 0.896\frac{J}{g\cdot ^\circ C}
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C. Chromosomes ive taken a quiz and it had the same question and i got it correct
5 0
4 years ago
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Which is the best metal to use in an alloy to increase its electrical conductivity?
denpristay [2]

Answer:

Its Silver!

Explanation:

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7 0
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What property of water allows water to work as a universal solvent?
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