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tester [92]
3 years ago
5

Elements can be represented by chemical symbols. Which of the following is the correct way to write the chemical symbol for sodi

um?
Chemistry
1 answer:
mixer [17]3 years ago
4 0

Na

hope this helps :)

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Concentration of Cl ion of 72.24g NaCl in .862 L solution
Nady [450]

Answer:

Molarity_{Cl^-}=1.434\ M

Explanation:

Moles of NaCl :

Given, Mass of NaCl = 72.24 g

Molar mass of NaCl = 58.44 g/mol

The formula for the calculation of moles is shown below:

moles = \frac{Mass\ taken}{Molar\ mass}

Thus,

Moles= \frac{72.24\ g}{58.44\ g/mol}

Moles\ of\ NaCl= 1.2361\ mol

NaCl is a strong salt. So, moles of chloride ion = 1.2361 moles

Volume = 0.862 L

Molarity=\frac{Moles\ of\ solute}{Volume\ of\ the\ solution}

Molarity_{Cl^-}=\frac{1.2361}{0.862}

Molarity_{Cl^-}=1.434\ M

7 0
3 years ago
What are the 5 energy changes that occur when you light a firecracker?
Slav-nsk [51]
Light,heat,fire,explosions
8 0
3 years ago
In science, what models are usually the best? A: Simple B: Complex C: Alphabetical D: Mathematical
Flura [38]
A) simple.

Hope this helped.
8 0
3 years ago
Read 2 more answers
How many atoms of chromium are in 9.56 moles of chromium?
Nostrana [21]
9.56Moles Chromium X 6.022X10^23 Atoms Divide by 1moles of Chromium = 5.76X10^24 atoms of Chromium
4 0
3 years ago
What else is produced during the replacement reaction of magnesium and hydrochloric acid? Mg 2HCl → H2.
irina [24]

A reaction in which the chemical element of the reactant is replaced by another to produce a product is called a single replacement reaction.

In a reaction, a hydrogen, metal or halogen element can get replaced with other more reactive elements to yield products.

The reaction of magnesium and hydrochloric produces:

\rm MgCl_{2}

The reaction can be explained as:

  • The reaction between the  \rm Mg  and \rm HCl is a single displacement reaction in which the more reactive metal replaces the less reactive metal from the compound.

  • Magnesium metal is more reactive compared to hydrogen and hence replaces \rm H_{2} from chlorine to produce:

\rm Mg (s) + 2 \;HCl  \;(aq)   \rightarrow  MgCl_{2} \;(aq) + H_{2} (g)

Therefore, another product formed will be magnesium chloride.

To learn more about displacement reaction follow the link:

brainly.com/question/10557249

5 0
3 years ago
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