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balu736 [363]
3 years ago
12

Which statement best describes a battery?

Chemistry
2 answers:
blsea [12.9K]3 years ago
5 0

Answer:

The correct answer is option A.

Explanation:

Batteries are connected group of electrochemical cells that stores electrical charges and generate electric current due to conversion of chemical energy into electrical energy.

These electrochemical cells are arranged in a same orientation so as to keep the polarities of the cells in same direction which will provide ease in movement of electrical charges. Preferably these electrochemical cells are identical.

ladessa [460]3 years ago
3 0
Im not 100% but i think b

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If an endothermic reaction occurs in solution, the temperature of the solution will
Ahat [919]

Answer:

increase

Explanation:

because in endothermic reaction heat is absorbed

4 0
3 years ago
What is the standard enthalphy change ΔHo, for the reaction represented above? (ΔHof of C2H2(g) is 230 kJ mol-1; (ΔHof of C6H6(g
wolverine [178]

Answer:

-608KJ/mol

Explanation:

3 C2H2(g) -> C6H6(g)

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ΔHrxn = 83 - 3(230)

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6 0
3 years ago
Colligative property definition chemistry
Vadim26 [7]

Answer: Colligative properties are those properties of solutions that are dependent on the concentration of the solutes in the solution.

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4 0
2 years ago
Equation for the for formation of ethanoic acid<br>​
vladimir2022 [97]

Answer:

2 C4H10 + 5 O2 → 4 CH3CO2H + 2 H2O.

Explanation:

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5 0
3 years ago
Adding more than one equivalent of HCl to pent-1-yne will lead to which product:______.
Ket [755]

Answer:

c. 2,2-dichloropentane.

Explanation:

Hello there!

In this case, according to the given information, it turns out possible for us to firstly draw the structure of the reactant, pent-1-yne:

CH\equiv C-CH_2-CH_2-CH_2

Now, we infer the halogen is added to the carbon atom with the most carbon atoms next to it, in this case, carbon #2, in order to write the following product:

CH\equiv C-CH_2-CH_2-CH_2+2HCl\rightarrow CH_3- CCl_2-CH_2-CH_2-CH_2

Whose name is 2,2-dichloropentane.

Regards!

8 0
2 years ago
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