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Elanso [62]
3 years ago
11

A chemical reaction has a ΔH of -2764 Kj. This indicates that the chemical reaction that took place was

Chemistry
2 answers:
Ket [755]3 years ago
7 0

Answer:

Explanation:

answer was A ENDOTHERMIC

grandymaker [24]3 years ago
4 0
Hello!

The reaction that took place was B) exothermic. 

The equation for the ΔH is 

\Delta H= H products - H reagents

To know if this reaction is exothermic or endothermic we will need to look at the sign of the ΔH. If it is positive, it means that enthalpy of the products is higher than the enthalpy of the reagents and the reaction is endothermic.

If the sign is negative, it means that the enthalpy of the products is lower than the enthalpy of the reagents and the reaction is exothermic. In this case, the sign is negative, so the reaction is exothermic.

Have a nice day!
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1. Find your
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3 years ago
what criteria are likely to dictate certain pairs of elements to undergo ionic bonding and others covalent bonding?
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If one element is a metal and the other element is a non metal

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2 years ago
A 25.0 mL aliquot of 0.0680 M EDTA was added to a 59.0 mL solution containing an unknown concentration of V3 . All of the V3 pre
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Answer:

\mathbf{0.02 M}

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\text{So, from the given question:}

\text{EDTA will make complex with} V^{+3} \text{and the remaining EDTA will react with }Ga^{+3}

\text{Hence, the total concentration of} V^{+3} & Ga^{+3} \text{will be equivalent to EDTA concentration.}

V_{EDTA} = 25 \ mL

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0.0680 \times 25 = (59\times x + 13 \times 0.040) \\ \\ 1.7 = 59x + 0.52\\ \\ 1.7 - 0.52 = 59x \\ \\ 59x = 1.18

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5 0
3 years ago
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