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3 years ago

How many joules of energy are absorbed when 36.2 grams of water is evaporated?

Chemistry

1 answer:

AfilCa [17]3 years ago

8 0

Answer:

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Explanation:

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5) If a car travels 60 miles for two hours, what is the average speed?

sdas [7]

Answer:

30 mi/hr

Explanation:

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3 years ago

The overall charge of an atom is ________ if the number of electrons is ________ than the number of protons.

miss Akunina [59]

The overall charge of an atom is positive if the number of electrons is less than the number of protons. Electrons are negatively charged particles while protons are positively charged particles. If there are less electrons as compared to the number of protons in an atom, then naturally the overall charge of the atom would be positive since there are excess protons. Another case would be that the overall charge of an atom is negative if the number of electrons is greater than the number of protons. An atom having more electrons than the number of the protons present would lead to a negative value of the charge since there are excess electrons.

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3 years ago

Using the name of the ionic compound, select the appropriate chemical formula. Use the periodic table

Nata [24]

Answer:

Explanation:

Abcd

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2 years ago

Read 2 more answers

A 720. cm^3 vessel contains a mixture of Ar and Xe. If the mass of the gas mixture is 2.966 g at 25.0°C and the pressure is 760.

sleet_krkn [62]

Explanation:

The given data is as follows.

Pressure (P) = 760 torr = 1 atm

Volume (V) = $720 cm^{3}$ = 0.720 L

Temperature (T) = $25^{o}C$ = (25 + 273) K = 298 K

Using ideal gas equation, we will calculate the number of moles as follows.

PV = nRT

Total atoms present (n) = $\frac{PV}{RT}$

= $1 \times \frac{0.720 L}{0.0821 \times 298}$

= 0.0294 mol

Let us assume that there are x mol of Ar and y mol of Xe.

Hence, total number of moles will be as follows.

x + y = 0.0294

Also, 40x + 131y = 2.966

x = 0.0097 mol

y = (0.0294 - 0.0097)

= 0.0197 mol

Therefore, mole fraction will be calculated as follows.

Mol fraction of Xe = $\frac{y}{(x+y)}$

= $\frac{0.0197}{0.0294}$

= 0.67

Therefore, the mole fraction of Xe is 0.67.

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3 years ago

Hybridization _____.

zzz [600]

The answer is number two here is an explanation of why I said number two ....

In chemistry, orbital hybridisation is the concept of mixing atomic orbitals into new hybrid orbitals suitable for the pairing of electrons to form chemical bonds in valence bond theory.

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3 years ago