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krek1111 [17]
3 years ago
15

The first particles to evaporate from a liquid are those

Chemistry
1 answer:
Bond [772]3 years ago
6 0
Particles below the surface of a liquid
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Calculate the enthalpy for the reaction D + F = G + H using
Iteru [2.4K]

The enthalpy for the reaction : ΔH = -132

<h3>Further explanation</h3>

Given

Reaction and the enthalpy

Required

the enthalpy

Solution

Hess Law

Reaction 1 reverse :

A + B = G + C  ΔH = -277

Reactions 2 and 3 remain the same (unchanged)

C + F = A         ΔH = 303

D = B + H         ΔH = -158

Add up all the reactions and remove the same compound from two different sides

D + F = G + H  ΔH = -132

5 0
2 years ago
What observations can you make about this group of people?
DedPeter [7]

Answer:The people are part of a softball team. They appear happy, they are showing number one with their fingers, and they are holding a trophy. They probably won the softball league championship

Explanation:

7 0
3 years ago
Which chemical symbol represents an element?
stellarik [79]
CO because it is the chemical symbol for the element cobalt whereas the rest are compound. H20 is water, CO2 is carbon dioxide and N2 is dinitrogen.
4 0
3 years ago
Read 2 more answers
What is the compound name of S3I9?
klasskru [66]
Trisulfur nonaiodide

Step-by-step explanation:
The name for a binary molecular compound has the form
Multiplying prefix+name of first element multiplying prefix+stem of second element element+ide (two words)
The multiplying prefixes for three and nine are tri and nona, respectively.
The stem of iodine is iod.
Put them together, and the name of S₃I₉ is
trisulfur nonaiodide.
4 0
3 years ago
Read 2 more answers
If a 0.7 M solution of Ca(OH)2 dissociates completely in water, what is the<br> final [OH-]?
IceJOKER [234]

Answer:

1.40 M [OH⁻]

Explanation:

This compound dissociates into 3 ions, but since we are asked about [OH⁻], it's only 2. Therefore, multiply the molarity of the solution by the number of ions that [OH⁻] dissociates into:

2 × 0.70 M = 1.40 M

Hope this helps! Sorry that you got a link. Those are getting really annoying

3 0
3 years ago
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