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Lelu [443]
3 years ago
8

Which of the following is a necessary product of a combustion reaction?

Chemistry
1 answer:
BlackZzzverrR [31]3 years ago
8 0

Answer:

Heat

Explanation:

explosions always make heat

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Th correct answer is option C. Calling can be hazardous because it also attracts parasites and predators.

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Thus the mating call can have a disastrous effect on the survival of the species.

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2 years ago
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Which of the following phases of matter has a fixed shape and volume
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A matter in the solid phase has a fixed shape and volume.

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2 years ago
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Find the equation of directrix of the parabola is given by 64x equals to -ySquare ​
ANEK [815]

Answer:

Given equation of parabola is

and

2

=64x ......(i)

The point at which the tangent to the curve is parallel to the line is the nearest point on the curve.

On differentiating both sides of equation (i), we get

2 y

dx

d y

=64

⇒

dx

d y

=

and

32

Also, slope of the given line is −

3

4

∴−

3

4

=

and

32

⇒and=−24

From equation (i), (−24)

2

=64x⇒x=9

∴ the required point is (9,−24)

Explanation:

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5 0
3 years ago
PLEASE HELP IM SO CONFUSED How does potassium need to be modified either on site or in a factory to make it useful. This should
3241004551 [841]


Potassium is not found  free in nature but is found in the form of potash. Potash is the ore of potassium and this ore is mined from deep down the earth or can sometimes  be found on the surface. Potash was mostly formed as sea water receded and left deposits.

Potash is usually in the form of potassium salts such potassium chloride and  potassium sulphate.  The potash  is mined then taken to the factory where it is crushed and purified  by removing such impurities as clay.

The now purified potassium salts are subjected to a process called electrolysis where  potassium metal is obtained from its salt. 

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3 years ago
Identify the two main materials that can be found in the inner and outer core layers of the earth.
Mrrafil [7]
A. Iron D. Nickel hope this helps you!
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3 years ago
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