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3 years ago

That do you know about gravity

Chemistry

2 answers:

IgorLugansk [536]3 years ago

6 0

Answer:

yes? Can I help you with a question? If so post it in the comments and ill help!

Explanation:

OLEGan [10]3 years ago

6 0

Answer:

There is 0 gravity in space so our weight reduces

Explanation:

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A gas that was heated to 150 Celsius has a new volume of 1587.4 L. What was its volume when its temperature was 100 Celsius?

sdas [7]

Answer:

$\boxed {\boxed {\sf 1058.3 \ L}}$

Explanation:

We are asked to find the new volume of a gas after a change in temperature. We will use Charles's Law, which states the volume of a gas is directly proportional to the temperature. The formula for this law is:

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

The gas was heated to 150 degrees Celsius and had a volume of 1587.4 liters.

$\frac {1587.4 \ L }{150 \textdegree C} = \frac {V_2}{T_2}$

The temperature was 100 degrees Celsius, but the volume is unknown.

$\frac {1587.4 \ L }{150 \textdegree C} = \frac {V_2}{100 \textdegree C}$

We are solving for the volume at 100 degrees Celsius, so we must isolate the variable V₂. It is being divided by 100°C and the inverse of division is multiplication. Multiply both sides of the equation by 100°C.

$100 \textdegree C *\frac {1587.4 \ L }{150 \textdegree C} = \frac {V_2}{100 \textdegree C} * 100 \textdegree C$

$100 \textdegree C *\frac {1587.4 \ L }{150 \textdegree C} = V_2$

The units of degrees Celsius cancel.

$100 *\frac {1587.4 \ L }{150 } = V_2$

$100 *10.58266667 \ L = V_2$

$1058.266667 \ L = V_2$

The original measurement of volume has 5 significant figures, so our answer must have the same. For the number we calculated, that is the tenth place. The 6 in the hundredth place to the right tells us to round to 2 up to a 3.

$1058.3 \ L = V_2$

The volume of the gas at 100 degrees Celsius is approximately <u>1058.3 liters.</u>

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3 years ago

How many moles of fe3o4 can be produced when 12.00 mol fe react with 6.00 mol o2?

ludmilkaskok [199]

In order to calculate the moles of product we need to write complete balanced chemical reaction. 3Fe(s) + 2O2 --->Fe3O4 Hence one mole of Fe3O4 will be produced from three moles of Fe and 2moles of oxygen molecule. For given 12 moles of Fe 8 moles of O2 will be required. Howwver only six moles of O2 are given so O2 is the limiting reagent. The six mes of O2 will react with 9 molws of Fe to produce three moles of Fe3O4.

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4 years ago

Pls help anyone ASAP!!!

Anvisha [2.4K]

Answer:

uhhhh

Explanation:

if you need help ask someone who is not anyone on this app

hehe :]

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3 years ago

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Which essential amino acid helps to alleviate insomnia and can be found in turkey?

In-s [12.5K]

Answer:

Valine

Explanation:

Valine aids in the improvement in insomnia and nervousness. Plus, it is also helps alleviate disorders of the muscles, works as an effective appetite suppressant and helps to regulate the immune system.

HOPE THIS HELPS!!

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4 years ago

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What creates an ionic bond?

Anna71 [15]

Answer:c

Explanation: it’s c

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3 years ago