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Colt1911 [192]
3 years ago
12

Which is one way to test whether an unknown solution is acidic or basic

Chemistry
2 answers:
lions [1.4K]3 years ago
8 0
Testing the ph. above 7 is acid and below is base. hope that helps
yarga [219]3 years ago
7 0

if the ph is above 7 then its acidic

if its below 7 than its going to be basic.

~serenity bella

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2500m into kilometer​
Alex777 [14]
<h2>Answer</h2>

1 meter = 1000 km

2500 meter = 2500/1000 km

= 2.5 km

8 0
3 years ago
An object had a mass of 8.5 g and a volume of 17 mL. What is the density of the object?
forsale [732]
That would be 0.5 g/ml because Density is equal to mass divided by volume and 8.5 is half of 17. 
3 0
3 years ago
Read 2 more answers
It takes 839./kJmol to break a carbon-carbon triple bond. Calculate the maximum wavelength of light for which a carbon-carbon tr
tresset_1 [31]

Answer:

The maximum wavelength of light for which a carbon-carbon triple bond could be broken by absorbing a single photon is 143 nm.

Explanation:

It takes 839 kJ/mol to break a carbon-carbon triple bond.

Energy required to break 1 mole of carbon-carbon triple bond = E = 839 kJ

E = 839 kJ/mol = 839,000 J/mol

Energy required to break 1 carbon-carbon triple bond = E'

E'=\frac{ 839,000 J/mol}{N_A}=\frac{839,000 J}{6.022\times 10^{23} mol^{-1}}=1.393\times 10^{-18} J

The energy require to single carbon-carbon triple bond will corresponds to wavelength which is required to break the bond.

E'=\frac{hc}{\lambda } (Using planks equation)

\lambda =\frac{6.626\times 10^{-34} Js\times 3\times 10^8 m/s}{1.393\times 10^{-18} J}

\lambda =1.427\times 10^{-7} m =142.7 nm = 143 nm

(1 m = 10^9 nm)

The maximum wavelength of light for which a carbon-carbon triple bond could be broken by absorbing a single photon is 143 nm.

6 0
3 years ago
What is 165 lb in kilograms (kg)?<br> 1 kg = 2.20 lb<br> (please show work) ASAP
Slav-nsk [51]
165 Pounds (lbs) = 74.84 Kilograms (kg)
1 lbs = 0.453592 kg 1 kg = 2.204623 lbs
5 0
3 years ago
Predict whether these reactions will occur: <br>KBr+F2 ?<br>and<br>Bi+O2 ?
Drupady [299]
KBr + Fs won't make a reaction because KBr is stable with an octet.

Bi+O2 probably won't occur because the O2 has a stable octet as well/
7 0
3 years ago
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