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Amiraneli [1.4K]
3 years ago
15

4. What are the characteristics of the particles of matter?

Chemistry
1 answer:
mojhsa [17]3 years ago
8 0

Not sure how in depth or what level of particles but I will go as deep as I know. The matter that makes up the world is comprised of 12 particles which are known as fermions. There are 12 fermions which are made up of 6 quarks (up, charm, top, Down, Strange, Bottom) 3 electrons (electron, muon, tau) and three neutrinos (e, muon, tau). Technically, only the up quark, down quark, electron, and electron neutrino are necessary to create all known matter since others would simply be very unstable and decay into those particles. The other type of particles are known as Bosons. These particles transmit forces and all sorts of different interactions. I have included a photo from online which describes the main characteristics of each elementary particle.

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PLEASE HELP ME ASAP!!!!
ipn [44]
The answer would be balanced
8 0
3 years ago
Read 2 more answers
Mass is the measure of the amount of ___ in an object.
Kamila [148]

Answer:

mass is the measure of the amount of weight pulled by gravity in an object B-)

5 0
3 years ago
A mixture of caco3 and (nh4)2co3 is 60.7 % co3 by mass. part a find the mass percent of caco3 in the mixture.
blagie [28]

The mixture contains:

CaCO3 + (NH4)2CO3 in which the amount of carbonate CO3 = 60.7% by mass

Let, the total mass = 100 grams

Mass of CaCO3 = x grams

Mass of (NH4)2CO3 = y grams

Thus,       x + y = 100 ------------(1)

Mass of CO3 = 60.7% = 60.7 g

Molar mass of CO3 = 60 g/mol

Total # moles of CO3 = 60.7 g/60 g.mol-1 = 1.012 moles

The total moles of CO3 comes from CaCO3 and (NH4)2CO3. Therefore,

moles CaCO3 + moles (NH4)2CO3 = 1.012

mass CaCO3/molar mass CaCO3 + mass (NH4)2 CO3/molar mass = 1.012

x/100 + y/96 = 1.012---------(2)

based on equation 1 we can write: y = 100-x

x/100 + (100-x)/96 = 1.012

x = 71.2 g

Mass of CaCO3 = 71.2 g



7 0
3 years ago
In which of these compounds are there twice as many oxygen atoms as hydrogen atoms?
Deffense [45]

Answer:

G - H2SO4

Explanation:

two hydrogen atoms and 4 oxygen atoms

8 0
3 years ago
Tap water at room temperature has a pH of 7.2 and carbonate alkalinity of 200 mg/L (= 40 mmol/L). What is the concentration of b
UNO [17]

Answer:

the concentration of bicarbonate is <em>[HCO₃⁻] = 0,03996 M </em>and carbonate is <em>[CO₃²⁻] = 3,56x10⁻⁵ M.</em>

Explanation:

Carbonate-bicarbonate is:

HCO₃⁻ ⇄ CO₃²⁻ + H⁺ With pka = 10,25

Using Henderson-Hasselbalach formula:

pH = pka + log₁₀\frac{[CO_{3}^{2-}]}{[HCO_{3}^-]}

7,2 = 10,25 + log₁₀\frac{[CO_{3}^{2-}]}{[HCO_{3}^-]}

8,91x10⁻⁴ = \frac{[CO_{3}^{2-}]}{[HCO_{3}^-]} <em>(1)</em>

Also:

0,040 M = [CO₃²⁻] + [HCO₃⁻] <em>(2)</em>

Replacing (2) in 1:

<em>[HCO₃⁻] = 0,03996 M</em>

Thus:

<em>[CO₃²⁻] = 3,56x10⁻⁵ M</em>

I hope it helps.

4 0
3 years ago
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