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aivan3 [116]
2 years ago
9

Which is a poor conductor of heat a. aluminum b. iron c. ceramic d. zinc

Chemistry
2 answers:
jasenka [17]2 years ago
3 0

Answer:

c. ceramic

Explanation:

because b d and a are metals c is not

TiliK225 [7]2 years ago
3 0
Ceramic is not a metal so ceramic
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#1: Which of the following is the abbreviation for a unit of energy? A. K / B. °C/ C. W / D. cal............... #2: A 200 g bloc
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3 years ago
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Which of the following is a pure substance? <br> brass<br> sodium<br> rocks<br> steel
Misha Larkins [42]
Homogeneous mixture<span>steel

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A container holds 100.0 mL of nitrogen at 21° C and a pressure of 736 mm Hg. What will be its volume if the temperature increase
devlian [24]

Answer:

V₂ = 104.76 mL

Explanation:

Given data:

Initial volume = 100.0 mL

Initial temperature = 21°C (21 + 273.15 K = 294.15 K)

Final temperature = 35°C (35 + 273.15 K = 308.15 k)

Final volume = ?

Solution:

Charles Law:

According to this law, The volume of given amount of a gas is directly proportional to its temperature at constant number of moles and pressure.

Mathematical expression:

V₁/T₁ = V₂/T₂

V₁ = Initial volume

T₁ = Initial temperature

V₂ = Final volume  

T₂ = Final temperature

Now we will put the values in formula.

V₁/T₁ = V₂/T₂

V₂ = V₁T₂/T₁  

V₂ =100.0 mL × 308.15 K / 294.15 K

V₂ = 30815 mL.K /294.15 K

V₂ = 104.76 mL

5 0
2 years ago
The decomposition of ethyl amine, C2H5NH2, occurs according to the reaction: C2H5NH2(g)⟶C2H4(g)+NH3(g) At 85∘C, the rate constan
statuscvo [17]

Answer:

2.772 seconds

Explanation:

Given that;

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t1/2 = 0.693/2.5 x 10-1 s-1

t1/2= 2.772 seconds

7 0
2 years ago
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