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snow_lady [41]
3 years ago
14

Air is transparent material?

Chemistry
2 answers:
Andrew [12]3 years ago
6 0
Air is a transparent material yes, we can see through it
Firlakuza [10]3 years ago
4 0
Yes, air is transparent because  air<span> contains so few atoms, light waves run into very few of them when they shine through </span>air<span>. So the </span>air<span> looks </span>transparent<span>.

Hope this Helps!
</span>
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In order for matter or energy to be conserved, one must have a ____ system.
Leya [2.2K]
Closed system.  If the system is not closed, matter or energy can escape from the system.  an example of this is if you react magnesium and hydrochloric acid in a open system.  The H₂ gas is going to escape making it look like some of the mass disappeared .  in that same reaction some in an open system will also loose heat to the surrounding which will make it look like less heat was produced.
6 0
3 years ago
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What products result from mixing aqueous solutions of Cr(NO3)2(aq) and NaOH(aq)? Question 10 options: Cr(OH)2(s), Na+(aq), and N
Alecsey [184]

Answer:

Cr(OH)2(s), Na+(aq), and NO3−(aq)

Explanation:

Let is consider the molecular equation;

2NaOH(aq) + Cr(NO3)2(aq) -----> 2NaNO3(aq) + Cr(OH)2(s)

This is a double displacement or double replacement reaction. The reacting species exchange their partners. We can see here that both the sodium ion and chromium II ion both exchanged partners and picked up each others partners in the product.

Sodium ions and nitrate ions now remain in the solution while chromium II hydroxide which is insoluble is precipitated out of the solution as a solid hence the answer.

4 0
3 years ago
Melted candle wax has no fixed shape, but it does have a fixed volume. So, melted candle wax is a
dlinn [17]
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7 0
3 years ago
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I have no idea what to put, pls help, due tmr<br>(science)​
rodikova [14]

Answer:

It traveled for 4 seconds at a distance of about 4.1 meters. With a velocity of 10%.

Explanation:

6 0
3 years ago
Cu + 2AgNO3 → Cu(NO3)2 + 2Ag
Eva8 [605]

Answer:

m_{Ag}=135.8gAg

Y=88.4\%

Explanation:

Hello there!

In this case, according to the described chemical reaction, it is possible to compute the theoretical mass of silver as mass via the 1:2 mole ratio of copper to silver and their atomic mass in the periodic table, in order to perform the following stoichiometric setup:

m_{Ag}=40.gCu*\frac{1molCu}{63.55gCu}*\frac{2molAg}{1molCu}*\frac{107.87gAg}{1molAg}\\\\   m_{Ag}=135.8gAg

Next, given the actual yield of 120 g, we compute the percent yield via:

Y=\frac{120g}{135.8g}*100\%\\\\Y=88.4\%

Regards!

4 0
3 years ago
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