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RUDIKE [14]
3 years ago
8

Which of the following statements describe the physical properties of a penny?

Chemistry
2 answers:
kodGreya [7K]3 years ago
8 0
I believe the answer is A.
Jlenok [28]3 years ago
8 0
B) it is light and thin
D)it gets hot in the sun (its metal)

its not A) because it has bumps like lincoln's head and
and not D) because it usually turns like a green color
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What is an electrolyte?
Mashcka [7]

Answer:

A substance that can conduct electricity in solution

8 0
3 years ago
What is the weighted average of a nail in the sample data given?
Natalka [10]

The weighted average of the nail in accordance with the given data is 11.176g.

<h3>How to calculate weighted average?</h3>

Weighted average is an arithmetic mean of values biased according to agreed weightings.

The weighted average of the nail in the image above can be calculated by multiplying the decimal abundance with the mass of the nail, then summed up as follows;

Weighted average = (decimal abundance × mass 1) + (decimal abundance × mass 2)

Weighted average = (0.12 × 3.3) + (0.88 × 12.25)

Weighted average = 0.396 + 10.78

Weighted average = 11.176g

Therefore, 11.176g is the weighted average of the nail

Learn more about weighted average at: brainly.com/question/28042295

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5 0
1 year ago
What does 3 dots inside a silver ring mean?
Alex73 [517]
It's reported inside the riddles or decorations
8 0
3 years ago
Read 2 more answers
When a bimetallic bar made of copper and iron strips is heated, the bar bends toward the iron strip. the reason for this is?
Digiron [165]
<span>iron gets hotter before copper.</span>
7 0
2 years ago
What is the coefficient of silver in the final, balanced equation for this reaction?
vekshin1

This is an incomplete question, the complete question is attached below.

Answer : The coefficient of silver in the final, balanced equation for this reaction is, 3

Explanation :

Redox reaction or Oxidation-reduction reaction : It is defined as the reaction in which the oxidation and reduction reaction takes place simultaneously.

Oxidation reaction : It is defined as the reaction in which a substance looses its electrons. In this, oxidation state of an element increases. Or we can say that in oxidation, the loss of electrons takes place.

Reduction reaction : It is defined as the reaction in which a substance gains electrons. In this, oxidation state of an element decreases. Or we can say that in reduction, the gain of electrons takes place.

The given redox reaction is,

Ag^+(aq)+Al(s)\rightarrow Ag(s)+Al^{3+}(aq)

The oxidation-reduction half reaction will be :

Oxidation : Al\rightarrow Al^{3+}+3e^-

Reduction : Ag^{+}+1e^-\rightarrow Ag

In order to balance the electrons, we multiply the reduction reaction by 3 and then added both equation, we get the balanced redox reaction.

The balanced redox reaction will be,

3Ag^+(aq)+Al(s)\rightarrow 3Ag(s)+Al^{3+}(aq)

From the balanced redox reaction we conclude that, the coefficient of silver in the final balanced equation for this reaction is 3.

Hence, the correct option is 3.

8 0
3 years ago
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