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2 years ago

7

at do oxygen (O) and bromine (Br) have in common? They both tend to gain electrons to gain stability. They both have seven valen

ce electrons. They are both halogens. They are both unreactive.

1 answer:

avanturin [10]2 years ago

4 0

Both of them have high electronegativity. Hence they both tend to gain electrons to gain stability.

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Some rice farmers burn their fields after harvest to remove leftover plant material and kill certain plant pests. You are resear

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3 years ago

If a gas occupies 1532.7 mL at standard temperature, what volume does it occupy at 49.4 ºC if the pressure remains constant?

ElenaW [278]

Answer:

a. 1810mL

Explanation:

When conditions for a gas change under constant pressure (and the number of molecules doesn't change), it follows Charles' Law:

$\dfrac{V_1}{T_1}=\dfrac{V_2}{T_2}$ where the temperatures must be measured in Kelvin

To convert from Celsius to Kelvin, add 273, or use the equation: $T_C+273=T_K$

For this problem, one must also recall that standard temperature is 0°C (or 273K).

So, $T_1 = 273[K]$ , and $T_2 = (49.4+273)[K]=322.4[K]$ .

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

$\dfrac{(1532.7[mL])}{(273[K])}=\dfrac{V_2}{(322.4[K])}$

$\dfrac{(1532.7[mL])}{(273[K\!\!\!\!\!{-}])}(322.4[K\!\!\!\!\!{-}] )=\dfrac{V_2}{(322.4[K]\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!{----})}(322.4[K]\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!{----})$

$1810.04571428[mL]=V_2$

Adjusting for significant figures, this gives $V_2=1810[mL]$

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1 year ago

Which statement is true about SO4 2− ?

Nonamiya [84]

It is a poly atomic anion because it has more than one atom and a negative charge

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2 years ago

Read 2 more answers

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Hydrocarbons are compounds formed by only hydrogen atoms and carbon.

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3 years ago

A bar graph of boiling point of milk and water

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Answer:

The boiling point of milk is close to the boiling point of water, which is 100 degrees C, or 212 degrees F at sea level, but milk contains additional molecules, so its boiling point is slightly higher.

Explanation:

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2 years ago