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2 years ago

Please help me on this question I'm confusied on it

Chemistry

2 answers:

Fynjy0 [20]2 years ago

7 0

Find the average speed of the car and enter those numbers.

Korolek [52]2 years ago

3 0

Answer:

So you need to look for the average speed of each car, which would allow you to then enter the numbers.

Explanation:

Hope this helps! Have a great say! :)

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How much does one molecule of ethane (C2H6) weigh? anwser in units of g/molec.

Sladkaya [172]

30.07 g/mol (that’s grams per mole)

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3 years ago

According to the kinetic theory, all matter is made of moving particles, which measurement of matter is directly proportional to

34kurt

Answer: Kelvin temperature of a substance

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2 years ago

What is the correct name for the cyclic alkane shown on the right?

NISA [10]

What is the correct name for the cyclic alkane shown on the right? 1,3-dimethyl, 3-ethylcyclohexane 1-ethyl, 1,4-dimethylcyclohexane 1-ethyl-1,3-dimethylcyclohexane 1-ethyl-1,3-dimethylcyclopentane 1,3 dimethyl, 3- ethylcyclopentane A

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2 years ago

2. If 1.75 L of a gas is at 700. K and is under 250. kPa of pressure, what will the new

Andrews [41]

Answer:

Final volume is 3.50L

Explanation:

It is possible to find volume of a gas using combined gas law:

$\frac{P_1V_1}{T_1} =\frac{P_2V_2}{T_2}$

Where P is pressure, V is volume and T is temperature of 1: initial state and 2: final state

If initial state of the gas is:

1.75L of a gas is at 700K and is under 250kPa of pressure

And final state is:

298K and 53.2kPa.

Replacing:

$\frac{250kPa*1.75L}{700K} =\frac{53.2kPa*V_2}{298K}$

0.625L = 0.1785*V₂

3.50L = V₂

Thus, final volume is 3.50L

3 0

3 years ago

Which of the following represents the ground state electron configuration for the Mn3+ ion? (Atomic number Mn = 25) 1s2 2s22p6 3

V125BC [204]

Answer:

$1s^22s^22p^63s^23p^63d^{4}$

Explanation:

Manganese is the element of group 7 and forth period. The atomic number of Manganese is 25 and the symbol of the element is Mn.

The electronic configuration of the element, manganese is -

$1s^22s^22p^63s^23p^63d^{5}4s^2$

To form $Mn^{3+}$ , it will lose 3 electrons from the valence electrons and thus the configuration of the ion is:-

$1s^22s^22p^63s^23p^63d^{4}$

8 0

2 years ago

Read 2 more answers