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goldfiish [28.3K]
3 years ago
10

What is the sum of 2.099 g and 0.05681 g? ____g

Chemistry
2 answers:
Bingel [31]3 years ago
6 0

Answer:

2.15581g

Explanation:

ELEN [110]3 years ago
3 0

Answer:

2.15581 grams

Explanation:

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A 0.245-L flask contains 0.467 mol co2 at 159 °c. Caculate the pressure using Van der Walls equation
AlladinOne [14]

Answer:

The right answer is "60.56 atm".

Explanation:

As we know,

Vander wall's equation is:

⇒ (P+\frac{n^2 a}{v^2} )(v-nb)=nRT

or,

⇒ P=\frac{nRT}{(v-nb)}-\frac{n^2 a}{v^2}

Here,

a = 3.59 L² atm mol⁻²

b = 0.0427 L mol⁻¹

By putting the values in the above equation, we get

⇒ P=\frac{0.467\times 0.0821\times 432}{0.245-0.467\times 0.0427}

       =\frac{(0.467)^2\times 3.49}{(0.245)^2}

       =73.61-13.05

       =60.56 \ atm

8 0
2 years ago
Which of the following statements is true about the role of oxygen in cellular respiration? It reacts with water. It is one of t
skad [1K]

"It reacts with water" is incorrect I took the test and got it wrong. I believe it is B, because oxygen combines with glucose and makes carbon dioxide.

6 0
3 years ago
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According to the periodic table, how many electrons does gallium (#31) have in its valence level?
mojhsa [17]
It would have three valance electrons
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3 years ago
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Find the atoms of 52u of helium ​
AlekseyPX
<h2>~<u>Solution</u> :-</h2>

Here, we have been given the the amount of helium to be 52 amu.

Thus,

  • Atomic mass of Helium is 4u = 2 protons + 2
  • Neutrons = 1 atom.
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$ \red{\leadsto}$ Hence, the number of atoms will be <u>13 atoms</u>.

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4 0
2 years ago
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Suppose you would like to
nika2105 [10]

Answer:

The amount of glue used, the material and how much of it you're using every time you test each glue, the temperature of the room, etc.

Explanation:

There are many answers to this question but think about the obvious ones first. Obviously you'll need to use the same amount of glue every time you're testing each type. The material used is also important and how much of the material you're using because different types of glue can work better with different materials, as well as how much material you're using. The temperature of the room can affect how well each glue holds up because often glue dries easier/quicker with heat, so in your experiment to make it fair you need to make sure that each glue is tested in the same environment.  

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