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mr Goodwill [35]
2 years ago
12

does anyone know the three answers Question 1 which element is in group 5 period 2?, question 3 which element is in group 6 peri

od 2?, question 4 which element is in group 8 period 1? this IPC it is both Integrated Physics and Chemistry
Chemistry
2 answers:
MrRa [10]2 years ago
4 0

Explanation:

1. Nitrogen

3. Oxygen

4. Helium

trapecia [35]2 years ago
3 0

look into the periodic system

question 1: nitrogen

question 3: oxygen

question 4: helium

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Consider an ideal gas enclosed in a 1.00 L container at an internal pressure of 18.0 atm. Calculate the work, w , if the gas exp
Dominik [7]

Answer:

-32821.2 J (negative sign implies that work is done by the system)

Explanation:

The expression for the calculation of work done is shown below as:

w=-P\times \Delta V

Where, P is the pressure

\Delta V is the change in volume

From the question,  

\Delta V = 18.0 - 1.00 L = 18.0 L

P = 18.0 atm

w=-18.0\times18.0\ atmL

Also, 1 atmL = 101.3 J

So,  

w=-18.0\times 18.0\times 101.3\ J=-32821.2\ J (negative sign implies that work is done by the system)

6 0
3 years ago
Can chopper be changed to gold? Explain​
Firlakuza [10]

Answer:

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hope this helps

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Explanation:

7 0
3 years ago
Which part of the atom is involved in bonding?
bonufazy [111]

Answer:

Valence electrons (the electrons on the outermost shell of the atom) are responsible for bonding

Explanation:

8 0
3 years ago
You have a different rock with a volume of 30cm and a mass of 60g, What is its density?
Galina-37 [17]
Density = mass/volume

Therefore,
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8 0
3 years ago
key A 0.150 M sodium chloride solution is referred to as a physiological saline solution because it has the same concentration o
lorasvet [3.4K]

Answer:

2.41065 grams

Explanation:

Here we have to apply molarity, particularly in reference to the equation molarity = moles of solute / volume. I would like to rewrite this formula, but with respect to the units - grams = moles / Liters,

We can use molarity to determine the number of moles. After doing so, we can determine the mass of the solute with respect to the formula moles = mass / molar mass. The molar mass of NaCl is 58.44 grams.

_______________________________________________________

275 mL = 0.275 L,

Number of Moles of NaCl = 0.150 * 0.275 = 0.04125 moles,

Mass = 0.04125 * 58.44 = 2.41065 grams,

Solution - Mass of NaCl = 2.41065 grams

<u><em>Hope that helps!</em></u>

5 0
3 years ago
Read 2 more answers
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