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34kurt
2 years ago
13

Please help I need an answer , URGENTLY !

Chemistry
1 answer:
EastWind [94]2 years ago
7 0

Answer:

Aluminium metal reacts vigorously with all the halogens to form aluminium halides. So it reacts with chlorine, bromine, and iodine.

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CH3CH2OH is an organic compound that is soluble in water. What type of compound is this?
shepuryov [24]

Answer:

Ethanol

Explanation:

CH3CH2OH is Ethanol

8 0
3 years ago
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Fulgurites are the products of the melting that occurs when lightning strikes the earth. Microscopic examination of a sand fulgu
BlackZzzverrR [31]

Answer:

Fe₃Si₇

Explanation:

In order to determine the empirical formula, we have to follow a series of steps.

Step 1: Determine the percent composition

Fe: 46.01%

Si: 53.99%

Step 2: Divide each percentage by the atomic mass of the element

Fe: 46.01/55.85 = 0.8238

Si: 53.99/28.09 = 1.922

Step 3: Divide all the numbers by the smallest one

Fe: 0.8238/0.8238 = 1

Si: 1.922/0.8238 = 2.33

Step 4: Multiply by numbers that make the coefficients whole.

Fe: 1 × 3 = 3

Si: 2.33 × 3 = 7

The empirical formula is Fe₃Si₇.

5 0
3 years ago
Which of the following produces a physical change in the shape of an object?
bogdanovich [222]

Answer:Any change that occurs without altering the chemical composition of a substance is a physical change. Physical changes can include changing the color, shape, state of matter, or volume of a substance. It is crucial to remember that physical changes never alter the chemical makeup.

Explanation:

i hope that helps u try to figure it out a little bit sorry i couldn't find your answer i didn't have much to go off of

8 0
3 years ago
A vehicle is moving with a velocity of 20 m/s.how far does it moves in one hrs
Airida [17]
Distance= Speed x Time

1hr=60mins

60mins=3600 secs

20 x 3600=72000

72000 is your answer.

5 0
3 years ago
Is the maximum population that a given area can support
Anastaziya [24]

Answer:

Carry capacity

Explanation:

I took the test

Hope this helps

pls mark brainliest :3

8 0
3 years ago
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