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vfiekz [6]
4 years ago
10

Which usually have no luster metals, nonmetals and metalloids

Chemistry
2 answers:
Levart [38]4 years ago
7 0
More information please?
Aneli [31]4 years ago
6 0

non-metals because its dull luster means shiny

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Origin of name of aluminun
Alex73 [517]
From Latin word alumen, mean alum
3 0
3 years ago
The amount of heat (q) gained or lost by a substance (with mass m) as its temperature changes (ΔT) depends on its specific heat
wariber [46]

Answer:

As the specific heat capacity for pure diamond is 0.5091\frac{J}{g.K} and it is different from the specific heat capacity found that is 0.2699\frac{J}{g.K}, the diamond sample is not pure.

Explanation:

1. As the problem says the equation that describes the amount of heat gained or lost by a substance is:

q=Cp*m*(T_{2}-T_{1})

q=Cp*m*ΔT

where q is the amount of heat, Cp is the specific heat capacity, m is the mass and ΔT is the change in the temperature.

2. Solving for specific heat capacity:

Cp=\frac{q}{m*(T_{2}-T_{1})}

3. Replacing values:

Cp=\frac{26.21J}{2.03g*(73.81C-25.99C}

Cp=0.2699\frac{J}{g.K}

As the specific heat capacity for pure diamond is 0.5091\frac{J}{g.K} and it is different from the specific heat capacity found that is 0.2699\frac{J}{g.K}, the diamond sample is not pure.

3 0
3 years ago
The temperature –60 °C is higher than –60 °F.
goldfiish [28.3K]

Answer:

false

Explanation:

it is MUCH lower in temperature

7 0
3 years ago
Read 2 more answers
128 mL of 1.50 x 10-2 M NaOH is used to titrate 225 mL of a monoprotic acid with unknown concentration to reach the equivalence
mash [69]
M1V1 = M2V2
128(.015) = 225M2
M2 = 8.53x10^-3 or D
4 0
3 years ago
Read 2 more answers
Usain Bolt went from 0.0 to<br> 11.0m/s in 3.4s. What was his<br> acceleration?
motikmotik

Answer:

Answer: Change in speed = 11 m/sTime taken = 3.4sHence, acceleration = (11/3.4) m/s² = 3.235 m/s²

Explanation:

(winks and runs off)

7 0
3 years ago
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