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3 years ago

PLS HELP NO LINKS PLS

Chemistry

2 answers:

elena-14-01-66 [18.8K]3 years ago

8 0

Answer:

100,000 is correct

Explanation:

nlexa [21]3 years ago

6 0

Answer:

100,000 Ozone Molecules

Explanation:

I just found this online calculator that got the answer.

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Polar air masses bring warm temperature and have lower air temperature? T or F

snow_tiger [21]

Answer:

t? im pretty sure have a good day

3 0

3 years ago

Find the equation of directrix of the parabola is given by 64x equals to -ySquare

ANEK [815]

Answer:

Given equation of parabola is

and

=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

d y

=64

⇒

d y

and

Also, slope of the given line is −

∴−

and

⇒and=−24

From equation (i), (−24)

=64x⇒x=9

∴ the required point is (9,−24)

Explanation:

This is the correct answer you want

please follow the

5 0

3 years ago

What is the molar mass of (NH), CO?<br> 138g<br> 788<br> 968<br> 1448

aleksandr82 [10.1K]

Answer:

The molar mass of $(NH_{4})_{2}CO_{3}$ is 96.8 g/mol

Explanation:

The given molecular formula - $(NH_{4})_{2}CO_{3}$

Individual molar masses of each element in the compound is as follows.

Molar mass of nitrogen - 14.01 g/mol

Molar mass of of hydrogen = 1.008g/mol

Molar mass of carbon = 12.01 g/mol

Molar mass of oxygen =16.00 g/mol

Molar mass of $(NH_{4})_{2}CO_{3}$ is

$2\times[1(14.01)+4(1.008)]+1(12.01)+3(16.00)= 96.8g/mol$

Therefore,The molar mass of $(NH_{4})_{2}CO_{3}$ is 96.8 g/mol

7 0

3 years ago

g All of the molecules below have polar bonds but only one of the molecules is a polar molecule. Which one is a polar molecule?

lbvjy [14]

Answer: $NF_3$

Explanation:

Geometrical symmetry of the molecule and the polarity of the bonds determine the polarity of the molecule.

The molecule that has zero dipole moment that means it is a geometrically symmetric molecule and the molecule which has some net dipole moment means it is a geometrically asymmetric molecule.

As the molecule is symmetric, the dipole moment will be zero as dipole moments cancel each other and the molecule will be non-polar.

As the molecule is asymmetric, the dipole moment will not be zero and the molecule will be polar.

Example: $NF_3$

Thus, we can say that $NF_3$ is a polar molecule.

4 0

3 years ago

Various pieces of safety equipment are used in the lab to provide protection against injury. What piece of lab safety equipment

Elina [12.6K]

Various pieces of safety equipment are used in the lab to provide protection against injury. However, the lab safety equipment which is least likely to be used when proper eye goggles are being worn is the eye wash station. If this question has the same choices as the ones posted before, the answer is letter C. eye wash station.

6 0

3 years ago

Read 2 more answers