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Schach [20]
4 years ago
8

Quarks are thought to be the building blocks of protons. Which was most affected by the discovery of the quark?

Chemistry
2 answers:
Bogdan [553]4 years ago
7 0
<span>C. the view that the atom cannot be broken down further than protons</span>
andreyandreev [35.5K]4 years ago
7 0

Answer:  

C. the view that the atom cannot be broken down further than protons  

Explanation:

Atom is considered as the smallest unit of matter. An atom contains protons and neutrons in the nucleus and electrons orbiting the nucleus in fixed energy shells.

It was thought that atom cannot be broken down further than these particles until quarks were discovered. A proton contains three quarks- 2 up quarks and 1 down quark.

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A corner test different weed killers on her along to see which kills the greatest number of dandelions............
jok3333 [9.3K]
Dependent variable: amount of dandelions killed by werd

Independent variable: health of dandelions/where they grew (if one is malnourished/older/dry it might be killed by the weed killer with more ease)
7 0
3 years ago
Will give you know what to first correct answer
vichka [17]

i believe this is false. not 100% tho

8 0
3 years ago
Consider the ionic compound that is the combination of the Chromium (III) and hydroxide ions. How many chromium atoms would be p
kobusy [5.1K]

An ionic compound forms when a metal bonds with a non-metallic element. Metals usually form the cation and non-metal anions. Chromium has an oxidation number of +3 in the compound and charge on hydroxide ion is -1.

Cation here is Cr^{3+}

Anion is the hydroxide ion OH^{-}

So the formula of the compound will be: Cr(OH)_{3}. The compound has one chromium atom and two hydroxide ions.

Therefore, there will be one Chromium atom per each chromium hydroxide compound.

6 0
3 years ago
What is the molar mass of a gas which occupies 48.7 L at 111oC under 698 torr of pressure and has a mass of 21.5 grams?
seropon [69]

Answer:

Molar mass of the gas = 15.15 g/mol

Explanation:

PV = nRT

Where,

P = pressure

n = No. of moles

R = Gas constant

T = Temperature

P = 698 torr, 1 torr = 0.00131579 atm

698\;torr = 698\times0.00131579 = 0.9184\;atm

Temperature = 111 °C = 100 + 273.15 = 384.15 K

V = 48.7 L

R = 0.082057 L atm/mol K

Now, PV = nRT

n = \frac{PV}{RT}

n = \frac{0.9184\times48.7}{0.082057\times384.15}

          =1.4189 mol

Molar mass = Mass/ No. of  moles

                    = 21.5/1.4189

                    =15.15 g/mol

8 0
3 years ago
The temperature of a sample of liquid water changes from 50°C to 30°C. Which statement best explains the change
KiRa [710]

Answer:

The molecules move slower than the temp of 50°c and their average kinetic energy decreases.

Explanation:

kinetic energy cannot increase as temperature is reduced. molecules will still move with reduced motion.

7 0
3 years ago
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