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emmasim [6.3K]
3 years ago
5

Select whether the statement is for Speed, Velocity, or Acceleration.

Chemistry
1 answer:
Vesna [10]3 years ago
4 0

Answer:

I think that the statement is relative to speed because it is saying km per second.

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What is the other metal react iron which get rusted​
stiks02 [169]

Answer:

The answer is OXIDATION REACTION.

6 0
3 years ago
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Benzene is a starting material in the synthesis of nylon fibers and polystyrene (styrofoam). Its specific heat capacity is 1.74
algol [13]

<u>Answer:</u> The final temperature of the sample is 62.66°C

<u>Explanation:</u>

To calculate the amount of heat absorbed, we use the equation:

Q=mc\Delta T

where,

Q = heat absorbed = 16.7 kJ = 16700 J   (Conversion factor:  1 kJ = 1000 J)

m = Mass of the sample = 225 g

c = specific heat capacity of sample = 1.74J/g.^oC

\Delta T = change in temperature = T_2-T_1=(T_2-20.0)

Putting values in above equation, we get:

16700=225g\times 1.74J/g.^oC\times (T_2-20)^oC\\\\T_2=62.66^oC

Hence, the final temperature of the sample is 62.66°C

8 0
3 years ago
what will be the new volume of a 250mL sample of gas at 300 k and 1 atm if heated to 350 k at 1 atm law use:
Art [367]

Answer:

292 mL

Step-by-step explanation:

The pressure is constant.

The only variables are volume and temperature, so we can use <em>Charles’ Law.</em>

V₁/T₁ = V₂/T₂     Multiply each side by T₂

V₂ = V₁ × T₂/T₁

V₁ = 250 mL; T₁ = 300 K  

V₂ = ?;           T₂ =  350 K

V₂ = 250 × 350/300

V₂ = 292 mL

5 0
3 years ago
What are some examples of positive acceleration
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Positive Acceleration refers to the force acting on an object whose speed increases as it moves away from its original starting position. If the velocity is increasing along with time it is called positive acceleration, and if the velocity decreases it is negative acceleration.
3 0
3 years ago
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PLEASE HELP
Dovator [93]
Omg I don’t know nun of this is crazy
7 0
3 years ago
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