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crimeas [40]
3 years ago
15

How many joules of heat are required to heat 131.0 grams of room temperature water (22 °C) to the boiling point?

Chemistry
1 answer:
vampirchik [111]3 years ago
3 0

100.0g x 4.184J/g/°C x 78°C ΔT = 32,645.2 Joules.

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The characteristics of two different types of reactions are shown downwards
a_sh-v [17]

Answer:

Valence electrons are involved in Reaction B but not in Reaction A.

Explanation:

The description of reaction A in which protons are lost or gained by the atom of the element is a nuclear reaction. In nuclear reactions, the nucleons which are the protons and neutrons drives the reaction. No valence electrons in the orbiting shells are involved in this kind of reaction. During this type of reaction, an atom changes it identity to that of another.

Reaction B in which no identity change occurs is a chemical reaction. In chemical reactions bonds are formed by the atoms using the valence electrons that orbits round the central nucleus. The atoms remain the same but it chose to attain stability and an inert configuration by losing or gaining electrons.

4 0
3 years ago
Read 2 more answers
If a jar of honey sits for a long time, sugar may crystallize in the jar. Describe two possible causes for the crystallization.
n200080 [17]
Dryness and temperature are the primary reasons but also the type of honey.
3 0
3 years ago
Draw the aromatic compound toluene (methylbenzene). show all hydrogen atoms, including those on the ring.
Otrada [13]

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6= ( 4n+2)π

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7 0
3 years ago
Which element is reduced in this reaction? cr2o72−+3hno2+5h+→2cr3++3no3−+4h2o enter the chemical symbol of the element?
Ksju [112]
<span>A reducing agent loses electrons, so on the left side of the equation N in HNO2 has an oxidation number of +3 and on the right side in NO3^- it has an oxidation number of +5, so it has lost electrons. Thus, the reducing agent would be HNO2.</span>
3 0
3 years ago
3. In an atomic model, what particles are found inside the nucleus of an atom?
sukhopar [10]

Answer:

Neurons and Protons

Explanation:

The Electrons are outside of the nucleus, also known as the <em>Electron</em><em> </em><em>Cloud</em><em>.</em>

I hope this was what you were looking for, and as always, I am joyous to assist anyone at any time.

4 0
3 years ago
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