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tester [92]
3 years ago
7

Which of the following best describes the formation of waves?

Chemistry
2 answers:
hjlf3 years ago
7 0

Answer:

The first one

Explanation:

waves are created by friction between wind and water surface

nata0808 [166]3 years ago
3 0

Answer: i think is the first one i don’t rembember

Explanation: trust me

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Which of these best explains why the hydrogen atoms in a water molecule are attracted to Cl− ions in sodium chloride (NaCl)?
siniylev [52]
<h2>Answer:</h2><h3>C. The hydrogen atoms have partial positive charges</h3><h3>Hopefully this helps! :)</h3>
5 0
2 years ago
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What chemical changes occur during photosynthesis
Yakvenalex [24]

Answer:

Water and carbon dioxide combine to form glucose and oxygen.

I hope this helped :)

7 0
3 years ago
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1. Which of the following choices demonstrates the law of constant composition? (Slides 2 ‒ 3: Laws on Matter) (a) Nitrogen and
katrin2010 [14]

Answer:

(b) When 20.0 g of nitrogen and 32.0 g of oxygen are combined and allowed to react in two separate experiments, both times the product isolated from reaction contains 14.0 g of nitrogen and 32.0 g of oxygen.

Explanation:

The law of definite proportion states that a gen chemical compound always contains its constituent elements in a fixed ratio by mass, independent on the method of preparation.

The molar mass of Nitrogen and Oxygen would always remain the same, allowing for exact reactant masses (or mole ratio) irrespective of the given amount of sample.

8 0
3 years ago
How to obtain pure aluminium oxide from sodium aluminate. pls help.​
cupoosta [38]

Answer:

<em>By</em><em> </em><em>Bayer</em><em> </em><em>process</em><em>.</em>

Explanation:

<em>In the Bayer process, bauxite ore is heated in a pressure vessel along with a sodium hydroxide solution (caustic soda) at a temperature of 150 to 200 °C. At these temperatures, the aluminium is dissolved as sodium aluminate (primarily [Al(OH)4]−) in an extraction process.</em>

6 0
3 years ago
Determine how many atoms of pure silver will be created when 19.83 x 1023 atoms of copper are used in the following reaction:
nadezda [96]

Answer : The number of silver atoms produced will be 39.66\times 10^{23}

Explanation : Given,

Number of atoms of copper = 19.83\times 10^{23}

The given balanced chemical reaction,

Cu+2AgNO_3\rightarrow Cu(NO_3)_2+2Ag

From the balanced chemical reaction we conclude that,

As, 6.02\times 10^{23} number of copper atoms react to give 2\times 6.02\times 10^{23} number of silver atoms.

So, 19.83\times 10^{23} number of copper atoms react to give 2\times \frac{6.02\times 10^{23}}{6.02\times 10^{23}}\times 19.83\times 10^{23}=39.66\times 10^{23} number of silver atoms.

Therefore, the number of silver atoms produced will be 39.66\times 10^{23}

8 0
3 years ago
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