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mamaluj [8]
4 years ago
5

Which of the following is considered an ignition source?

Chemistry
1 answer:
matrenka [14]4 years ago
4 0
A.

Weldings sparks could start fire on wood.

Lightning can ignite a fire one a tall tree

Open flames can start another fire if made in contact especially with flammable substances
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Farm water runoff, which causes nitrogen rich fertilizer to be washed into the body of water. The nitrogen feeds the algae bloom.. Hope this helps
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4 years ago
What test would you use to identify a solution of fecl3
uysha [10]

Answer:

Ferric chloride test

Explanation:

The ferric chloride test can be used to detect metabolites in urine in case of inborn error of metabolism such as phenylketonuria. Compounds such as phenylpyruvate increase in plasma and are excreted out via urine. Also, it can be used to detect salicylates in urine, quick diagnostic test for aspirin overdose.

4 0
3 years ago
Rick is creating a love potion for Morty. To make the potion, Rick's needs 51 mL of a mixture solution where 40% is carbonated w
Deffense [45]

Answer:

The amount of the first solution rick needs to mix together to create the love portion is 8.5 mL

Explanation:

So as to make the love potion, we have;

The percentage of carbonated water in the love portion = 40%

The percentage of green tea in the first solution = 65%

The percentage of carbonated water in the first solution = 15%

The percentage of whole milk in the first solution = 20%

The percentage of orange juice in the second solution = 17%

The percentage of lemonade in the second solution = 38%

The percentage of carbonated water in the second solution = 45%

Let 'x' represent the volume in mL of the first solution added to make the love portion, and let 'y' be the volume in mL of the second solution added to make the love portion, we have;

x + y = 51...(1)

0.15·x + 0.45·y = 0.40×51 = 20.4

0.15·x + 0.45·y = 20.4...(2)

Solving the system of simultaneous equation by making 'y' the subject of each of the equation gives;

For equation (1)

y = 51 - x

For equation (2)

y = 20.4/0.45 - (0.15/0.45)·x = 136 - 3·x

y = 136/3 - (1/3)·x

Equating the two equations of 'y', gives;

51 - x = 136/3 - (1/3)·x

51 - 136/3 = x - (1/3)·x

17/3 = (2/3)·x

(2/3)·x = 17/3

x = (3/2) × (17/3) = 17/2 = 8.5

x = 8.5

y = 51 - x = 42.5

y = 42.5

Therefore, the amount of the first solution rick needs to mix together to create the love portion, x = 8.5 mL

8 0
3 years ago
hi, I have a science and biology quiz tomorrow and this is the first time. Can you guys drop some tips on how to get higher mark
Lyrx [107]

Answer:

Plan your schedule: Now, as you know your weak areas, your agenda should be to give extra time to tackle those difficult lessons and transform them to strong ones.

Note-making is an effective method:

Solve previous years' question papers:

Understand the concepts while studying:  

Group study can help

1 – Time Management – Daily Routine.

2 – Having Good Food and Drinking More Water Will Help.

3 – Doing Meditation For 30 Min Per Will Increase Memory Power by 20%  

4 – Take A Nap & Sleep Well.  

5 – Challenge Yourself.

6 – Find Your Weakness.

5 0
3 years ago
Can someone help me with that pls
kipiarov [429]

Answer:

The one that's highlighted in blue is the answer

6 0
3 years ago
Read 2 more answers
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