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faltersainse [42]

3 years ago

15

Two cars that are identical except for their color are traveling on the same road.

2 answers:

Ray Of Light [21]3 years ago

7 0

B. The blue car has more kinetic energy than the red car

Bogdan [553]3 years ago

4 0

The answer would be B

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the chemical compound C2F4 is used to make PTEE (Teflon). How manyC2F4 molecules are in 485 kilograms of this material?

monitta

Answer:

$molecules=2.92x10^{27}moleculesC_2F_4$

Explanation:

Hello,

In this case, we use the Avogadro's number to compute the molecules of C2F4 whose molar mass is 100 g/mol contained in a 485-kg sample as shown below:

$molecules=485kgC_2F_4*\frac{1000gC_2F_4}{1kgC_2F_4} *\frac{1molC_2F_4}{100gC_2F_4}*\frac{6.022x10^{23}molecules C_2F_4}{1molC_2F_4} \\\\molecules=2.92x10^{27}moleculesC_2F_4$

Best regards,

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3 years ago

Below are several squares of various sizes which represent their volume. The number of dots inside the squares represents the ma

Leona [35]

Answer:

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Explanation:

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3 years ago

74. Is the charge of a nucleus positive, negative, or zero?<br> The charge of an atom?<br> J

tia_tia [17]

The charge of a nucleus is neutral, meaning it’s zero

the positive charges of an atom equal the negative charges so the atom has a neutral charge

7 0

4 years ago

ANSWER FAST PLZ 25 POINTS!!!!!!!!!!!!!!!

Ksju [112]

Answer:

A

Explanation:

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3 years ago

Consider the reaction H2(g) + I2(g) <-> 2HI(g). What is the reaction quotient, Q, for this system when [H2] = 0.100 M, [I2

Black_prince [1.1K]

Answer:

D. 613

Explanation:

I just had to answer it and that was the correct answer :)

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7 0

3 years ago

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