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Nonamiya [84]
3 years ago
11

Which one of the following solutions has The (((lowest )))PH value?

Chemistry
1 answer:
marissa [1.9K]3 years ago
3 0

Answer:

a

Explanation:

because I said so and I think it's right

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Write a nuclear equation to describe the spontaneous fission of 95 244 Am to form I-134 and Mo-107. Determine how many neutrons
MissTica

<u>Answer:</u> 3 neutrons are produced in the above nuclear reaction.

<u>Explanation:</u>

In a nuclear reaction, the total mass and total atomic number remains the same.

The nuclear reaction for the fission of Americium-244 isotope follows:

^{244}_{95}\textrm{Am}\rightarrow ^{134}_{53}\textrm{I}+^{107}_{42}\textrm{Mo}+Y^1_0\textrm{n}

<u>To calculate Y:</u>

Total mass on reactant side = total mass on product side

\Rightarrow 244=134+107+(Y\times 1)\\\\\Rightarrow Y=244-241=3

Hence, 3 neutrons are produced in the above nuclear reaction.

4 0
3 years ago
more energy can be produced from a fat molecule than a glucose molecule because fat molecules contain more
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An empty weighing dish has a mass of 1.0041 ± 0.0002 g. After you add dried sodium chloride to the dish, the mass is 3.2933 ± 0.
Maurinko [17]

Answer:

The correct answer to the following question will be "0.0013%".

Explanation:

The given values are:

Weight of an empty dish = 1.0041 ± 0.0002 g

Weight of dish + sodium chloride (NaCl) = 3.2933 ± 0.0002 g

Weight of NaCl = 2.2892 ± 0.0002 g

Now,

Volume of the solution = 500.00 ± 0.05 ± 0.0002

                                      = 500.00 ± 0.0502 ml

So,

Molarity = \frac{W \ NaCl}{M \ NaCl} \times \frac{1000}{Volumes \ of \ solution}

On putting the values in the above formula, we get

             = \frac{(2.2892\addeq +0.0002)}{58.440}\times \frac{1050}{(500.00+0.0502)}

             = (3.917 ± 0.0002) × (2 ± 0.0502)

             = (0.7834 ± .00001004)

Now,

Absolute error = \frac{0.00001004}{0.7834}\times 100

                         = 0.0013%

7 0
3 years ago
Avogadro’s number is the number of particles in one mole of a pure substance true or false
erastovalidia [21]
The answer to this is: True
5 0
3 years ago
Were do you put the extra chemicals after you done in the lab
LUCKY_DIMON [66]
You put it in a container and leave it for your next project that ur gonna use it next with !
4 0
3 years ago
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