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marysya [2.9K]
3 years ago
9

What do the orange and yellow spheres represent in this model of an atomic nucleus?

Chemistry
1 answer:
Dovator [93]3 years ago
5 0
<span>The orange and yellow spheres represents Protons and neutrons in this model of an atomic nucleus.Protons and neutrons are heavier than electrons and reside in the nucleus at the center of the atom. Electrons are extremely lightweight and exist in a cloud orbiting the nucleus.</span>
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A 74.0-gram piece of metal at 94.0 °C is placed in 120.0 g of water in a calorimeter at 26.5 °C. The final temperature in the ca
Aloiza [94]

Answer:

Explanation:

Heat lost by metal = mass x specific heat x fall in temperature

= 74 x S x ( 94 - 32 )

= 4588 S

heat gained by water = mass x specific heat x rise in temperature

= 120 x 1 x ( 32 - 26.5 )   ( specific heat of water is 1 cals / gm )

= 660

Heat lost = heat gained

4588S = 660

S = .14 cal /gm .

Specific heat of metal = .14 cal  / gm

8 0
3 years ago
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7 0
3 years ago
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Harman [31]
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5 0
3 years ago
Give the chemical equation for the net reaction that occurs during the titration calcium iodate
Allushta [10]
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7 0
3 years ago
How might you think it is possible to convert from moles to particles or grams to particles?
nevsk [136]

Explanation:

To convert moles to particles or grams to particles, let us have a firm understanding of what a mole is.

A mole is the unit of measuring quantity of particles.

It is the amount of substance that contains the Avogadro's number of particles.

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To convert from grams to particles;

  First convert to moles;

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  So,    1 mole of a substance  contains 6.02 x 10²³ particles

4 0
2 years ago
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