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Margarita [4]
2 years ago
9

Compare and contrastthe properties of the individual elements that combine to make salt with the compound salt

Chemistry
1 answer:
mr_godi [17]2 years ago
7 0

Answer:

I believe is the correct answer

Explanation:

NaCl made,2(NaCl)or2NaCl,Na2Cl,NaCl2 all represent compounds

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A certain electromagnetic wave has a wavelength of 6.25 x 10-7m. What is the
olasank [31]

Answer: 4.80 * 10¹⁴s⁻¹

Explanation:

Speed = Frequency * Wavelength

So:

Frequency = Speed/ Wavelength

Speed of light = 3 * 10⁸ m/s

Frequency = (3 * 10⁸ m/s) / (6.25 x 10⁻⁷m)

= 4.80* 10¹⁴hz

= 4.80 * 10¹⁴s⁻¹

8 0
3 years ago
Are water and air elements? Explain your answer
Andreas93 [3]

Answer: An element is a substance composed of a single type of atom. Hydrogen (element symbol H) and oxygen (element symbol O) are examples of elements. So, water is made from elements, but is not itself an element. Before people knew about atoms and molecules, water was considered to be an element

Explanation: Are water and air elements? Explain your answer

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3 years ago
Given the balanced ionic equation representing the reaction in an operating voltaic cell: zn(s) + cu2+(aq) → zn2+(aq) + cu(s) th
soldi70 [24.7K]

Answer: from the Zn anode to the Cu cathode


Justification:


1) The reaction given is: Zn(s) + Cu₂⁺ (aq) -> Zn²⁺ (aq) +Cu(s)


2) From that, you can see the Zn(s) is losing electrons, since it is being oxidized (from 0 to 2⁺), while Cu²⁺, is gaining electrons, since it is being reduced (from 2⁺ to 0).


3) Then, you can already tell that electrons go from Zn to Cu.


4) The plate where oxidation occurs is called anode, and the plate where reduction occus is called cathode.


So you get that the electrons flow from the anode (Zn) to the cathode (Cu).


Always oxidation occurs at the anode, and reduction occurs at the cathode.

3 0
4 years ago
The metric unit of force is the<br><br> A. newton<br> B. pound<br> C. kilogram<br> D. watt
Gala2k [10]

Answer:

Newton

Hope it helped u. plz mark me as the brainliest!

Cheers!

8 0
3 years ago
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What is the ph of H2?
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Hydrogen ion concentration is more conveniently expressed as pH, which is the logarithm of the reciprocal of the hydrogen ion concentration in gram moles per liter. Thus, in a neutral solution the hydrogen ion (H+) and the hydroxyl ion (OH−) concentrations are equal, and each is equal to 10−7. A pH of 7 is neutral

4 0
3 years ago
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