3 years ago

Answer These Please And Thank You!

Chemistry

1 answer:

docker41 [41]3 years ago

4 0

No sorry i just clicked on this for free points

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2.41 x 1024 formula units of NaCl

IgorLugansk [536]

So the number of moles = 0.06 moles of 4X12-2 moles.

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3 years ago

The__is the source of energy used in photosynthesis?

kolezko [41]

Answer:

sun

Explanation:

source means where it comes from and the source of energy comes from the sun

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3 years ago

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A process used to measure heat change in a system is called ______________________.

Nutka1998 [239]

Measuring heat flow!

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3 years ago

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Write the molecular formula of sodium bicarbonate and write any two uses of it.

gulaghasi [49]

$\huge\mathcal\colorbox{cyan}{{\color{blue}{AnSwEr~↓~↓~}}}$

$\huge\mathbb\colorbox{black}{\color{white}{FORMULA\:\:↓}}$

<h3><em>NaHCO3</em></h3>

$\huge\mathbb\colorbox{black}{\color{white}{USES\:\:↓}}$

<h3><em>preparing baking powder. as an antacid in medicine. in fire extinguishers. manufacture of soda water.</em></h3>

$\huge \colorbox{pink}{Hope \: It \: Help \: U}$

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3 years ago

40.0g of NaOH is dissolved in water. How much heat (in joules) was released?

adelina 88 [10]

<span>The molar heat of solution of NaOH is -445,100 J/mol. To compute much heat (in J) will be released if 40.00 g of NaOH are dissolved in water, we first convert the given grams of NaOH to moles of NaOH, and use the given molar heat of solution to compute for the energy. (Using dimensional analysis):

40 g NaOH x (1 mol NaOH/ 40 g NaOH) x (-445100 J / 1 mol NaOH) = -445100 J of energy.</span>

4 0

3 years ago