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Angelina_Jolie [31]
3 years ago
8

Explain how you could use displacement reactions to distinguish between

Chemistry
2 answers:
miss Akunina [59]3 years ago
7 0

zinc is more reactive than iron because it displace iron from its solution

hodyreva [135]3 years ago
4 0

Answer:

A double displacement reaction is a type of reaction in which two reactants exchange ions to form two new compounds. Double displacement reactions typically result in the formation of a product that is a precipitate.

Explanation:

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When is di- used in the name of a hydrocarbon?
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Di- is used when you are naming organic compounds. If you have the same substituent repeated twice in the compund
For example: CH3-CH(CH3)-CH2-CH(CH3)-CH3
This will be named 2,4-dimethylpentane
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3 years ago
Which of the following tends to form a cation (positive ion) with a charge of 2+?
bixtya [17]
This has all of the charges above the columns. Hopefully it helps!

5 0
3 years ago
Identify the substance that conducts electricity.
Umnica [9.8K]

Answer:

KBr dissolved in water.

Explanation:

A substance conducts electricity as a result of the presence of mobile ions in the substance.

An ionic substance such as KBr when dissolved in water releases free ions which become charge carriers in solution hence the solution conducts electricity. Solid ionic substances such as solid KBr and solid baking soda do not conduct electricity because the ions are strongly bound to each other in the crystal lattice.

Molecular substances such as sugar and alcohol do not conduct electricity even in solution.

8 0
3 years ago
A 25.00 mL sample of of a sulfurous acid solution is completely neutralized using 17.12 mL of 0.13 M sodium hydroxide. What is t
Kryger [21]

Answer:

0.0445 M is the initial concentration of sulfurous acid.

Explanation:

H_2SO_3+2NaOH\rightarrow Na_2SO_3+2H_2O

To calculate the concentration of acid, we use the equation given by neutralization reaction:

n_1M_1V_1=n_2M_2V_2

where,

n_1,M_1\text{ and }V_1 are the n-factor, molarity and volume of acid which is H_2SO_3

are the n-factor, molarity and volume of base which is NaOH.

We are given:

n_1=2\\M_1=?\\V_1=25.00mL\\n_2=1\\M_2=0.13 M\\V_2=17.12 mL

Putting values in above equation, we get:

2\times M_1\times 25.00 mL=1\times 0.13 M\times 17.12 mL

x=\frac{1\times 0.13 M\times 17.12 mL}{2\times 25.00}=0.0445 M

0.0445 M is the initial concentration of sulfurous acid.

8 0
3 years ago
A negative change in entropy indicates that...
vovangra [49]

Answer:

B. the products have a smaller number of available energy microstates than the reactants.

4 0
3 years ago
Read 2 more answers
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