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Slav-nsk [51]
2 years ago
14

From point A to point B, the car will . From point B to point C, the car will . Assuming the washer on the car is not blocked by

the book, once the car hits the book, the washer will still have . This experimental design will examine Newton’s law.
Chemistry
2 answers:
NeX [460]2 years ago
8 0

Answer:

From point A to point B, the car will

✔ accelerate

.

From point B to point C, the car will

✔ have constant velocity

.

Assuming the washer on the car is not blocked by the book, once the car hits the book, the washer will still have

✔ velocity

.

This experimental design will examine Newton’s

✔ first

law.

Explanation:

Natali5045456 [20]2 years ago
5 0

Answer:

Accelerate, Have Constant velocity, Velocity, and First

Explanation:

Got it right on edge. have a wonderful day!!!

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The acid dissociation constant Ka of boric acid (H3BO3) is 5.8 times 10^-10. Calculate the pH of a 4.4 M solution of boric acid.
madam [21]

Answer: The pH of a 4.4 M solution of boric acid is 4.3

Explanation:

H_3BO_3\rightarrow H^+H_2BO_3^-

at t=0  cM              0             0

at eqm c-c\alpha        c\alpha          c\alpha  

So dissociation constant will be:

K_a=\frac{(c\alpha)^{2}}{c-c\alpha}

Give c= 4.4 M and \alpha = ?

K_a=5.8\times 10^{-10}

Putting in the values we get:

5.8\times 10^{-10}=\frac{(4.4\times \alpha)^2}{(4.4-4.4\times \alpha)}

(\alpha)=0.000011

[H^+]=c\times \alpha

[H^+]=4.4\times 0.000011=4.8\times 10^{-5}M

Also pH=-log[H^+]

pH=-log[4.8\times 10^{-5}]=4.3

Thus pH of a 4.4 M H_3BO_3 solution is 4.3

3 0
3 years ago
Which word describes the forces acting on the car?
KIM [24]
C. Unbalanced describes the forces acting on the car
7 0
3 years ago
Methane (CH 4 ) , ammonia (NH 3 ) , and oxygen () can reaci to form hydrogen cyanide (HCN) and water (H 2 O) according to this e
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Answer:

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Explanation:

7 0
2 years ago
What is the total number of liters of SO3 produced when 32.0 of SO2 reacts completely
ahrayia [7]
Write  the   chemical  equation   for  reaction
that  is  
2SO2+O2  --->2SO2

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=  32g/80g/mol=0.4 moles

by  use  of  reacting  ratio  between  SO2   and  SO3   which   is   2:2  therefore  the  moles  of  so3  is  also =  0.4  moles

STP  1 mole  =  22.4L.
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4 0
3 years ago
What is the name of cells that have the ability to develop into different<br> kinds of cells?
ser-zykov [4K]

Answer:

stem cells

Explanation:

hope it helps

8 0
2 years ago
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