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Inessa05 [86]
3 years ago
8

What questions should be considered when evaluating the reliability of a website

Chemistry
2 answers:
liberstina [14]3 years ago
8 0

Some of the questions are:

1) Is it relevant for my assignment or research?

2) Is the author identified?

3) Is the author a person you recognise as an expert in his field?

4) Is the author affiliated to an academic institution or credible organisation?

5) Is the text well written and grammatically correct?

6) Are the sources cited reliable and can they be verified elsewhere?

7) Does the website promote a different viewpoint?

8) Is the information up to date?

Vladimir79 [104]3 years ago
7 0
If your doing a test or review, you should ask yourself; do I remember reading ANYTHING like this? If no, you should look for another site, and/or just use your books. If yes, this site may be reliable.
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If a plant uses 44 grams of carbon dioxide and 18 grams of water to produce 32 grams of oxygen, how many grams of glucose are pr
Tems11 [23]
The balanced equation for the reaction is as follows 
6H₂O + 6CO₂ ---> C₆H₁₂O₆ + 6O₂

number of moles of CO₂ used - 44 g / 44 g/mol = 1 mol
number of moles of H₂O used - 18 g / 18 g/mol = 1 mol
stoichiometry of CO₂ to H₂O is 6:6 = 1:1
1 mol of CO₂ present and 1 mol of H₂O present therefore they are both fully used up in the reaction of molar ratio 1:1
number of moles of O₂ formed - 32 g/ 32 g/mol = 1 mol

stoichiometry of CO₂:H₂O:C₆H₁₂O₆:O₂ is 6:6:1:6
1 mol of CO₂ has reacted with 1 mol of H₂O to form 1 mol of O₂ and x mol of C₆H₁₂O₆

the number of C₆H₁₂O₆ moles is 1/6th of CO₂ moles used up
since CO₂ moles - 1 mol 
therefore C₆H₁₂O₆ moles formed - 1/6 mol = 0.167 mol
mass of glucose formed - 0.167 g x 180 g/mol = 30 g 
therefore 30 g of glucose is formed 
5 0
3 years ago
What does the sum of the protons and neutrons in an atom equal
nikitadnepr [17]

Atomic number is your answer.

6 0
4 years ago
A single atom of an element has 21 neutrons, 20 electrons, and 20 protons. Which element is it?
jeyben [28]

Answer:

Calcium

Explanation:

Clacium has atomic number 20. The atomic number. This means that it has 20 protons and 20 electrons. it has 21 neutrons.

5 0
3 years ago
(true or false) the electron structure of an atom is determined by direct observation using x-rays.
Mama L [17]

The answer is false. It is because the electron structure of the atom is not determined by using the direct observation of using an x-ray but rather the usage of theoretical modeling and the emission spectra will be useful in observing.

7 0
3 years ago
Salt mixed in water is an example of a___
Natasha2012 [34]
The answer to this is a solution
3 0
3 years ago
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