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____ [38]
2 years ago
12

The chemical reaction between the reagents luminol and bleach produces a brief flash of light. Which change would most likely ma

ke the light produced in the reaction last longer?
increasing luminol concentration


adding a catalysts


decreasing the quantity of both reagents.


decreasing the temperature
Chemistry
1 answer:
Shalnov [3]2 years ago
8 0
Decrease the temperature
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Does chlorine have a smaller ionic radius than soium.
mafiozo [28]

Answer:

sodium atoms are much larger than chlorine atoms but in case of sodium ions they are much smaller thqn chlorine ions

4 0
2 years ago
What is the solution to the problem expressed to the correct number of significant figures?
anyanavicka [17]

Answer:

8700

Explanation:

First, do the operations i<em>nside parentheses</em>.

102 900/12 = 8600     2 sfs because of 12

170/1.27 = 130              2 sfs because of trailing 0 in 170

===============

Now, do the addition.

 8600

<u>  + </u><u>13</u><u>0 </u>

8700

The answer has two significant figures because when adding, you must round your answer to the same "place" as the measurement with its last significant figure furthest to the left.  

The last significant figure in 8600 (the 6, in the hundreds place) is further to the left than the last significant figure in 130 (the 3, in the tens place).

We round off to the nearest hundred and get the answer, 8700.

6 0
3 years ago
19. Which organic molecule are steroids an example of?
Zarrin [17]
Steroids are lipids because they are hydrophobic and insoluble in water
6 0
1 year ago
Read 2 more answers
Describe what happens to a carbon-11 atom when it undergoes positron emission.
atroni [7]

Answer:C11 -----^boron+positron

Explanation:the above reaction is nuclear reaction.

Positron emission causes the decrease in atomic number by one.

As in above example carbon-11is converted into boron isotop which has atomic number of 5.

7 0
2 years ago
A chemist prepares a solution of sodium thiosulfate (Na2S203) by measuring out 110.g of sodium thiosulfate into a 350. mL volume
forsale [732]

Answer:

1.99 M

Explanation:

The molar mass of sodium thiosulfate (solute) is 158.11 g/mol. The moles corresponding to 110 grams are:

110 g × (1 mol/158.11 g) = 0.696 mol

The volume of solution is 350 mL = 0.350 L.

The molarity of sodium thiosulfate is:

M = moles of solute / liters of solution

M = 0.696 mol / 0.350 L

M = 1.99 M

5 0
3 years ago
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