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Reika [66]
3 years ago
12

What are compounds that react with acids and bases to make certain colors?

Chemistry
1 answer:
finlep [7]3 years ago
4 0
Those would be called indicators , simply google them and you should find many. I'll leave some examples "bromophenol blue"  "Methyl red" and "phenol red".
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determine the molecular formula of the compound with an empirical formula of CH and a molar mass of 78.110g/mol
Vlada [557]

Answer:

C_{6} H_{6}

Explanation:

First, find the mass of empirical formula, CH. 12.01 g/mol is for carbon, and 1.008 g/mol is for hydrogen. 12.01+1.008=13.018 G/mol CH. Divide 78.110 G/mol by 13.018 g/mol. You get approximately 6. Multiply that by the subscript of each element. 6(CH)=

C_{6} H_{6}

8 0
3 years ago
One gram of salt in 100 liters of water could be considered a _______________________ solution. A) concentrated B) dilute C) sat
vitfil [10]

Answer:I believe your answer would be option B) dilute. Hope this helps.

Explanation:

3 0
3 years ago
Read 2 more answers
Hello! Please help.
loris [4]

Answer:

Air is a mixture. Its constituents can be separated. For example: oxygen, nitrogen etc.

Hydrochloric acid is a mixture, being an acidic liquid.

4 0
3 years ago
A compound is 40.0% c, 6.70% h, and 53.3% o by mass. assume that we have a 100.-g sample of this compound. the molecular formula
atroni [7]
<span>When you have 100 g of compound, then based on the percentages given, there are 40.0 g C, 6.70 g H, and 53.3 g O. Convert those to moles:

</span>C: 40.0 g / 12.0 = 3.33 moles of C 
<span>H: 6.70 g / 1.01 = 6.63 moles of H </span>
<span>O: 53.3 / 16.0 = 3.33 moles of O 
</span>
<span>Dividing by the smallest (3.33), we get a C:H:O mole ratio of 1:2:1
</span>So, <span>The empirical formula is CH2O.
Now, </span><span>That formula has a molar mass of [12.0 + 2(1.0) + 16.0] = 30.0

And we are given it's molar mass is = 240

So, no. of units of CH2O = 240 / 30 = 8

</span><span>8 x CH2O = C8H16O8, and that is the molecular formula.
</span>
C_8H_{16}O_8
3 0
3 years ago
PLEASE HELP NO LINKS OR FILES
podryga [215]

Answer:

Rise surface fall surface rise

Explanation:

Hope this helps!

5 0
3 years ago
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