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3 years ago

What are some physical propeties of copper?

Chemistry

2 answers:

eimsori [14]3 years ago

6 0

Answer:

Explanation: Reddidh colour

bright metallic luster

malleable and ductile

good conductor of heat

MariettaO [177]3 years ago

6 0

Answer:

Copper has a melting point of 1083.4 +/- 0.2°C, boiling point of 2567°C, specific gravity of 8.96 (20°C), with a valence of 1 or 2.

Copper is reddish colored and takes a bright metallic luster.

It is malleable, ductile, and a good conductor of electricity and heat

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(50 POINTS!!!)

Brrunno [24]

Answer:

1. battery

2. the other bulb would not light

3. the other bulb lit normally

4. the series curcuit with 1 bulb was brighter than the series circuit with 2 bulbs

5. both bulbs were illuminated equally

Explanation:

just took the quiz in case anyone needs it

7 0

3 years ago

In the periodic table which of these elements has the smallest atomic radius ?

vivado [14]

I think its Helium correct me if I'm wrong plz.

7 0

3 years ago

Which of the following is not a polymer<br>A. Glucose.<br>B. Starch.<br>C. Cellulose.<br>D. DNA.

WARRIOR [948]

Answer:

A. Glucose

Explanation:

Glucose is a monomer and not a polymer. So, option (A) is not a polymer.

3 0

3 years ago

Read 2 more answers

Given the following balanced equation, determine the rate of reaction with respect to [O2]. If the rate of formation of O2 is 7.

murzikaleks [220]

Answer: The rate of the loss of $O_3$ is 0.52M/s

Explanation:

Rate law says that rate of a reaction is directly proportional to the concentration of the reactants each raised to a stoichiometric coefficient determined experimentally called as order.

The rate in terms of reactants is given as negative as the concentration of reactants is decreasing with time whereas the rate in terms of products is given as positive as the concentration of products is increasing with time.

$2O_3(g)\rightleftharpoons 3O_2(g)$

Rate of disappearance of $O_3$ = $-\frac{1d[O_3]}{2dt}$

Rate of formation of $O_2$ = $+\frac{1d[O_2]}{3dt}$

$-\frac{1d[O_3]}{2dt}=+\frac{1d[O_2]}{3dt}$

Rate of formation of $O_2$ = $7.78\times 10^{-1}M/s$

Thus Rate of disappearance of $O_3$ = $\frac{2d[O_2]}{3dt}=\frac{2}{3}\times 7.78\times 10^{-1}M/s=0.52M/s$

8 0

4 years ago

Why does the newton's cradle stop swinging

Naya [18.7K]

The balls are not perfectly elastic, but the main reason is probably air.
Explanation:
When 2 adjacent balls have any distance between them, there is air in the space. When the moving neighbor comes at a stationary ball the moving ball has to push the air out of the way.
I hope this helps

3 0

3 years ago