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Leona [35]
3 years ago
15

Write a paragraph comparing protons, neutrons, and electrons. Be sure to include mass, location, and electric charge.

Chemistry
2 answers:
morpeh [17]3 years ago
5 0

Answer:

Explanation:

Dalton's Atomic Theory explained a lot about matter, chemicals, and chemical reactions. Nevertheless, it was not entirely accurate, because contrary to what Dalton believed, atoms can, in fact, be broken apart into smaller subunits or subatomic particles. We have been talking about the electron in great detail, but there are two other particles of interest to us: protons and neutrons. We already learned that J. J. Thomson discovered a negatively charged particle, called the electron. Rutherford proposed that these electrons orbit a positive nucleus. In subsequent experiments, he found that there is a smaller positively charged particle in the nucleus, called a proton. There is also a third subatomic particle, known as a neutron.

Masja [62]3 years ago
5 0
Not a paragraph but a handy grid to help you learn the key facts about each type!

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Balance the following reaction: NaOH + HCI ->NaCI +H2O​
Fiesta28 [93]

The chemical reaction is balanced.

Explanation:

We have the following chemical reaction:

NaOH + HCl → NaCl + H₂O

It is a neutralization reaction between a base and an acid which produce a salt and water.

To balance the chemical reaction the number and type of atoms entering the reaction have to be equal to the number and type of atoms leaving the reaction. We do that to conserve the mass.

We do not need to add other stoechiometric coefficients because the reaction is already balanced.

1 Na atom is entering the reaction and 1 Na atom is leaving the reaction

1 Cl atom is entering the reaction and 1 Cl is leaving the reaction

1 O atom is entering the reaction and 1 O atom is leaving the reaction

2 H atoms are entering the reaction and 2 H atoms are leaving the reaction

Learn more about:

balancing chemical reactions

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3 years ago
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Answer:

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6 0
3 years ago
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A quantity of gas weighing 7.1 g at 741 torr and 44 celius occupies 5.41 L. Find its molar mass.
Aleks04 [339]
1 atmosphere = 760 torr
R = 0.082
44 degrees Celsius = 317 degrees Kelvin

PV=NRT\\ \frac{744}{760}(5.41)=N(0.082)(317)\\ \frac{4025.04}{760}=25.994N\\\frac{4025.04}{19755.44}=N\\N=\frac{50313}{246943}\\0.203743
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3 years ago
If a car weighs 300 kg, and gravity causes it to accelerate downward at 9.8 m/s2. What is the gravitational force on the
JulsSmile [24]

Answer:

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Explanation:

gravity pulls you down

8 0
3 years ago
How many moles of NH4NO3(s) must be dissolved in water so that 73.0 kJ of heat is absorbed from the water? (The molar heat of so
fenix001 [56]
25 kj  absorbed  by  dissolving  1 mole of  NH4NO3

1kj  is   absorbed  by  dissolving =  1/25.7 =  0.03891  moles
what  about  73  kj  absorbed  by  dissolving

0.03891  x73=  2.8404 moles

3 0
3 years ago
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