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solong [7]
3 years ago
7

The student is now told that the four solids, in no particular order, are calcium bromide (CaBr2), sugar (C6H12O6), benzoic acid

(C6H5COOH), and potassium bromide (KBr). Assuming that conductivity is correlated to the number of ions in solution, rank the four substances based on how well a 0.20 M solution in water will conduct electricity.
Please list from Most Conductivity to Lease Conductivity in order (the ones I am typing out are in a random order):

calcium bromide
sugar
potassium bromide
benzoic acid
Chemistry
2 answers:
IceJOKER [234]3 years ago
8 0
Ca2Br
KBr
C6H5COOH (benzonic acid)
C6H12O6 (sugar)
nataly862011 [7]3 years ago
3 0
<h2>Answer : The order of conductivity from most conductive to least is this - </h2><h2>Calcium bromide (CaBr_{2}), Potsassium bromide (KBr), Benzoic acid C_{6}H_{5}COOH and last is sugar.</h2><h3>Explanation : </h3>

When dissolved in water  (CaBr_{2}) produces three ions namely; Ca^{+2} and 2Br^{-} which acts as best conductor amongst the given choices.

Next is potassium bromide when dissolved in water generates only two ions which are K^{+} and Br^{-} and acts as an conductor.

Benzoic acid C_{6}H_{5}COOH, is a weak acid and is slightly ionized so it acts as an weak conductor.

Sugar is a non ionized compound so it is anon conductor.

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Energy decreases as it moves up trophic levels because energy is lost as metabolic heat when the organisms from one trophic level are consumed by organisms from the next level. Trophic level transfer efficiency (TLTE) measures the amount of energy that is transferred between trophic levels.

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3 years ago
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There is 6.4% sales tax on 1,500 television how much tax is owned<br>​
Arturiano [62]

Answer:

What you need to know before I explain is how to add percents onto numbers.  What I'm saying is what and how to do 6.4% x 1500

1. You can't do a percent and number together, that's impossible

What you can do is convert the percent (6.4%) into a decimal

2. 6.4% is equivalent to 6.4/100, which is equivalent to 0.064

3.  Now, you multiply 0.064 x 1500

You will notice, hopefully, that you have a number smaller than 1500, but do not panic, you are on the right track!

4. Using the number you got, add that to 1500, and there's your total!

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Explanation:

6 0
3 years ago
how the various concentrations of acid will affect the amount of limestone that is dissolved from each jar.
schepotkina [342]

The explanation of the how the various concentrations of acid will affect the amount of limestone has been given below.

Effects of acid rain on limestone:-

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Thus we discussed the affects of acid rain on limestones above.

Learn more about Acid Rain here:

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8 0
2 years ago
A pumpkin rolls 3.78 km in 6.8 hours. What is its speed?
Zielflug [23.3K]

Answer:

The answer is

<h2>0.56 km/hr </h2>

Explanation:

The speed of an object given the distance and time can be found by using the formula

speed =  \frac{distance}{time}  \\

From the question

distance covered by pumpkin = 3.78 km

volume = 6.8 hours

The speed is

speed =  \frac{3.78}{6.80}  \\  = 0.5558823...

We have the final answer as

<h3>0.56 km/hr </h3>

Hope this helps you

3 0
4 years ago
Which element will most likely form covalent bonds with fluorine? f carbon g tin h potassium j neon?
hram777 [196]
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In present case, electronegativity of F is 3.98, electronegativity of C is 2.55, electronegativity of tin is 1.96 and electronegativity of potassium is 0.82.

Here, since the electronegativity difference is minimum in case of C-F, so covalent bond will be preferentially with carbon. 

It must also be noted that neon is an inert gas, hence it will not form bond with F.  
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