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Artyom0805 [142]
3 years ago
9

Which of the following has a positive acceleration?

Chemistry
2 answers:
vaieri [72.5K]3 years ago
7 0

Answer:

C

Explanation:

Because the car is moving forward with an increasing velocity, it has a positive acceleration.

Nady [450]3 years ago
5 0

Answer:

Explanation:

Question

Which of the following has a positive acceleration?

A. A car sits at rest at a stop sign.

B. A car is slowing down as it approaches a traffic light. a

C. A car increases its speed moving forward.

D. A car is in cruise control at a constant speed.

Positive acceleration is when there is a positive increase in velocity over time.

C.  is the only choice that shows a positive increase in velocity over time.    

A. and D. show NO change in velocity, while B. shows a negative change.                                                          

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(GIVING OUT BRAINLIEST)<br> Compare and contrast the conditions required for snow and rain to form.
Vanyuwa [196]

Answer:

Snow forms when the atmospheric temperature is at or below freezing, and there is a minimum amount of moisture in the air. Within a cloud, water droplets condense onto one another, causing the droplets to grow. When these water droplets get too heavy to stay suspended in the cloud, they fall to Earth as rain

Explanation:

6 0
3 years ago
What is a chemical property of soda ash
xz_007 [3.2K]
Soda  ash   which  is  also referred  to  as   sodium  carbonate with  a  chemical  formula (NaCO3)  has  the   following   chemical   formula
The   melting   point   of  851  degrees
The  molecular  weight  of  105.98
Its  density  at   25  degrees  is =2.53 g/cm^3
Its  specific  heat  capacity  at  25  degrees = 0.249  cal/gm/ 0c
4 0
4 years ago
Hydrogen sulfide decomposes according to the following reaction, for which Kc = 9.30x10⁻⁸ at 700°C:2H₂S(g) ⇄ 2H₂(g) + S₂(g) If 0
astra-53 [7]

the equilibrium concentration of H₂(g) at 700°C =  0.00193 mol/L

0.00193 mol/L

Given that:

numbers of moles of H₂S = 0.59 moles

Volume = 3.0-L

Equilibrium constant  = 9.30 × 10⁻⁸

The equation for the reaction is given as :

2H₂S    ⇄   2H₂(g)  +  S₂(g)

The initial concentration of H₂S =

The initial concentration of H₂S =

= 0.1966 mol/L

The ICE table is shown be as :

                           2H₂S                ⇄         2H₂(g)        +        S₂(g)

Initial                    0.9166                           0                           0

Change                 -2 x                               +2 x                      + x

Equilibrium          (0.9166 - 2x)                   2x                         x

     

(since 2x < 0.1966 if solved through quadratic equation)

The equilibrium concentration for H₂(g) = 2x

∴

= 0.00193 mol/L

Thus, the equilibrium concentration of H₂(g) at 700°C =  0.00193 mol/L

To know more about equilibrium concentration

brainly.com/question/13414142

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5 0
1 year ago
Consider the reaction and its equilibrium constant at 25.0 ∘C :
olga55 [171]

Since Qp>Kp , the reaction is not at equilibrium.

<h3>What is the equilibrium constant?</h3>

The equilibrium constant shows the extent to which reactants are converted into products.

Now we have to obtain the Qp as follows;

Qp =[CH3OH]/[CO] [H2]^2

Qp = 0.265/(0.265) (0.265)^2

Qp = 14.2

Now we know that Kp = 6.09×10−3, Since Qp>Kp , the reaction is not at equilibrium.

Learn more about equilibrium constant:brainly.com/question/10038290

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5 0
2 years ago
Determine the number of moles in 1 gram of water<br><br>​
marissa [1.9K]

Answer:

This is

1 mole = 18 gram = 6×10^23 molecules

1 gram = ?

1 gram= 18/6×10^23 atoms

1 gram =3×10^-23 atoms

4 0
3 years ago
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