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Dafna11 [192]
2 years ago
12

What is the coefficient for this formula? 9 NaCl2 A. 11 B. 9 C. 2 D. 1

Chemistry
1 answer:
KATRIN_1 [288]2 years ago
5 0

Answer:

B. 9

Explanation:

The formula of the compound is given as:

            9NaCl

Coefficient is the number before the compound. The compound here is made up of sodium and chlorine.

Therefore, we have 9 as the coefficient and it is 9 moles of NaCl.

  • The compound have 1 atoms of Na
  • Also 1 atom of Cl

Note, NaCl is an ionic compound.

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Question 2 (2 points)
inysia [295]

Answer:

v = 46.5 m/s

Explanation:

Given data:

Mass of car = 1210 kg

Momentum of car = 56250 kg m/s

Velocity of car = ?

Solution:

Formula:

p = mv

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m = mass

v = velocity

Now we will put values in formula:

56250 kg m/s  = 1210 kg × v

v = 56250 kg m/s / 1210 kg

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3 years ago
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2 years ago
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kotegsom [21]
27g x 1cm^2/2.7g = answer in cm^2
Grams cancel out
3 0
2 years ago
What is the radius of a circle i<br>s ​
Nonamiya [84]

Answer:

The Radius is the distance from the center outwards. The Diameter goes straight across the circle, through the center. The Circumference is the distance once around the circle.

6 0
3 years ago
Read 2 more answers
Can yall plz help me it’s a huge major grade and i don’t know how to do this
fomenos

Answer:

1. 48 mols

2. 0.2 M

5. 1.25 L

Explanation:

Molarity= mols divided by liters

Hope this helps not sure about 3 and 4

3 0
3 years ago
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