3 years ago

HELP! Which atom would be neutral?

Chemistry

1 answer:

stealth61 [152]3 years ago

7 0

Answer:

an oxygen atom with 8 electrons, 8 protons and 9 neutrons

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Never mind, question solved.

Alchen [17]

The answer to the problem is 100

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1 year ago

Explain what happens when a cold air mass overtakes a warm air mass?

SVEN [57.7K]

Is this a multiple answer?

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3 years ago

If the starting volume of a hot air balloon is 55,500 m3and the initial temperature is 21 °C, what is the temperature inside the

Dmitry_Shevchenko [17]

Answer:

T₂ = 392 K

Explanation:

Given that,

Initial volume of the hot air balloon, V₁ = 55500 m³

Initial temperature, T₁ = 21°C = 294 K

Final volume, V₂ = 74000 m³

We need to find the final temperature inside the balloon. The relation between the temperature and volume is given by charles law i.e.

$\dfrac{V_1}{T_1}=\dfrac{V_2}{T_2}$

Where

T₂ is the final temperature

So,

$\dfrac{V_1}{T_1}=\dfrac{V_2}{T_2}\\\\T_2=\dfrac{T_1V_2}{V_1}\\\\T_2=\dfrac{294\times 74000 }{55500 }\\\\T_2=392\ K$

So, the new temperature is 392 K.

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3 years ago

How to balance Mg3n2+H20>>Mg(oh)2+Nh3?

alexandr1967 [171]

Mg₃N₂ + 6H₂O = 3Mg(OH)₂ + 2NH₃

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3 years ago

If the density of an object is 5.2g/cm3, and it’s volume is 3.7 cm3, what is it’s mass?

lord [1]

Here's the equation you use: Density = mass/volume

1) 5.2g/cm^3 = m/3.7cm^3

2) m = 5.2g/cm^3 x 3.7cm^3

3) m = 19.24g

You can check the answer by plugging it in

19.24g/3.7cm^3
= 5.2g/cm^3

5 0

3 years ago