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Kazeer [188]
3 years ago
13

Net Ionic equations

Chemistry
1 answer:
Goryan [66]3 years ago
4 0
<span>Net Ionic equation: 3Zn^2+(aq) + 2PO4^3-(aq) ---> Zn3(PO4)2 (s)
hope it helps
</span>
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David has bleach and water and mixes them together.
marta [7]

Answer:

A) increase Ph B) incorporated ions: Na⁺ and ClO⁻

Explanation:

Bleach is the regular name for sodium hypochlorite (NaClO). This salt is basically composed by the cation sodium (Na⁺) and anion hypochlorite (ClO⁻), and when dissolved in water, this salt makes Ph goes above 7, this is, a basic Ph (will be increased)  - have in mind that, a Ph below 7 is acid, and a Ph above 7 is basic)

This will occur since, when ClO⁻ is dissolved in water:

ClO⁻ + H2O → HClO + OH⁻ according to this reaction, the hydroxyl anion will increase the Ph of the water

Finally, when dissolving bleach in water, you will be incorporating ions Na⁺ (sodium) and ClO⁻ (hypochlorite)

8 0
3 years ago
The density of a 0.75M NaOH solution is 1.1g/ml. Calculate the mass percent of NaOH in the solution
Slav-nsk [51]

Answer:

2.73%

Explanation:

Molarity of NaOH = 0.75 M

Density of solution = 1.1 g/mL

Mass percent of NaOH = ?

Solution:

Number of moles of NaOH = 0.75 mol    from 0.75 mol/L

Mass of NaOH = number of moles × molar mass

Mass of NaOH = 0.75 mol × 40 g/mol

Mass of NaOH =  30 g

Mass of solution:

d = m/v

1.1 g/ mL = m/ 1000 mL

m = 1100 g

Percentage of NaOH:

% NaOH = mass of solute / mass of solution × 100

% NaOH =  30 g/ 1100 g × 100

% NaOH = 2.73%

5 0
3 years ago
The value of the metal in 2p coins, made in 1991 is now worth 3.3p.
Studentka2010 [4]

The coins in 1991 had more copper in them compared to the coins today. So, that is why it worth 3.3p.  
8 0
3 years ago
Among the following compounds which are isomers?
Assoli18 [71]
Im going for d i think i took this last year
4 0
3 years ago
Which answer provides the correct name for the following hydrocarbon?
ivanzaharov [21]
1) Hydrocarbon: CH3 - CH2 - CH2 - CH2 - CH3

2) Only single bonds => alkane => sufix ane

3) no substitutions

4) 5 carbons = > prefix penta.

Therefore, the name is pentane.
4 0
4 years ago
Read 2 more answers
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