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Kay [80]
3 years ago
5

A white powder is made of 24% carbon and the rest being Fluorine. Its simplest formula is. (C=12, F=19)

Chemistry
1 answer:
ladessa [460]3 years ago
7 0

Answer:

A. CF2

Explanation:

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The diagram below shows the atoms involved in forming table salt. Which statement best describes what happens next ?
Ghella [55]

An ionic compound is composed of ionic bonds that are formed by transfer of electrons from one atom to the other. The atom that loses electrons acquires a positive charge (cation) while that which gains electrons acquires a negative charge.

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Thus, NaCl is essentially, Na⁺Cl⁻

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5 0
3 years ago
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(Numerical problems) A car is running with the velocity of 72km/h. What will be it's velocity after 5s if it's acceleration is -
kodGreya [7K]

The car's velocity after 5s : 10 m/s

<h3>Further explanation</h3>

Given

velocity=v=72 km/h=20 m/s

time=t = 5 s

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Required

velocity after 5s

Solution

Straight motion changes with constant acceleration

\tt v_f=v_i+at

vf=final velocity

vi = initial velocity

Input the value :

\tt v_f=20+(-2).5\\\\v_f=20-10\\\\v_f=10~m/s

The car is decelerating (acceleration is negative) so that its speed decreases

4 0
3 years ago
Which of these statements about enzymes is true?
allochka39001 [22]
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C is the answer
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What is meant by Critical temperatue?
yuradex [85]

Answer:

The critical temperature of a substance is the temperature at and above which vapour of the substance cannot be liquefied, no matter how much pressure is applied.

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3 years ago
When driving a truck,is fuel crucial?
Natali [406]

Answer:

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Explanation:

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