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Chemistry

1 answer:

Natasha2012 [34]2 years ago

3 0

Answer:

Acceleration:

Speed/Time

Change in speed or velocity over a specific amount of time

Speed:

Distance/Time

Change in distance over a specific amount of time

Velocity:

Distance/Time

Speed in a given direction

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Calculate the pH and pOH of 0.010 mol OH- per liter

Sati [7]

We can use a variety of formulas to determine our answers here.

Our formula for pOH is -log(mol), and we can plug it in as -log(0.010). Take note that OH- is a base, not an acid.

So, the pOH of OH- is 2.

To find pH we can set up this simple equation:
pH + pOH = 14
All we need to do is subtract 2 from 14, therefore the pH is 12.

This makes sense since acids range in the pH of 1-6, and we are dealing with a base. Hope I could help!

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2 years ago

Convert 2.83 days into seconds

katovenus [111]

2.83 days into hours = 2.83 x 24 = 67.92 hours

67.92 hours into minute = 67.92 x 60 = 4075.2 minutes

4075.2 minutes into seconds = 4075.2 x 60 = 244,512 seconds.

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2 years ago

What is the main function of the circulatory system?

likoan [24]

B- is the answer

Hope this helps

Have a nice day~

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2 years ago

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the gas left in an used aerosol can is at a pressure of 103 kPa at 25 degrees celsius if this can be thrown into fire what is th

Rainbow [258]

Hello!

The pressure of the gas when it's temperature reaches 928 °C is 3823,36 kPa

To solve that we need to apply Gay-Lussac's Law. It states that the pressure of a gas when the volume is left constant (like in the case of a sealed container like an aerosol can) is proportional to temperature. This is the relationship derived from this law that we use to solve this problem:

$P2= \frac{P1}{T1}*T2= \frac{103 kPa}{25}*928=3823,36 kPa$

Have a nice day!

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3 years ago

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What amount of heat is produced during the combustion of hexane if the temperature of the calorimeter increases by 4.542 k?

Flauer [41]

Answer:

the answer is 85.66

Explanation:

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1 year ago

(IMAGE ATTACHED)Help plssss this is due in 3 hours​

(IMAGE ATTACHED)Help plssss this is due in 3 hours