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Pani-rosa [81]
3 years ago
6

Which scientist is credited with developing the first scientific atomic theory

Chemistry
1 answer:
Dvinal [7]3 years ago
7 0

Dalton

Dalton's theory was the first scientific theory because it relied on scientific investigative processes.

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What is the mass of 0.572 moles of Al?
kozerog [31]
Answer: 15.433704

Use the periodic table to check the atomic mass, this is the number of grams per mole → 1 mole of Aluminum is 26.982 g
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? Match the states of matter to their properties. Drag the items on the left to the correct location on the right. solids Indefi
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Solids: definite shape and definite volume (highest density)

Liquid: indefinite shape and definite volume (glide past each other)

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Explanation:

look at the answer

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How the government support communities affected by xenophobia​
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They tax the citizens and then provide them with relief efforts

Explanation:

Common disease protocol

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3 years ago
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Food is the only limiting factor that keeps populations from growing too large true or false?
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Which gas will effuse at the rate closest At a particular pressure and temperature, nitrogen gas effuses at the rate of 79mLs. U
Contact [7]

Answer : The rate of effusion of sulfur dioxide gas is 52 mL/s.

Solution :

According to the Graham's law, the rate of effusion of gas is inversely proportional to the square root of the molar mass of gas.

R\propto \sqrt{\frac{1}{M}}

or,

(\frac{R_1}{R_2})=\sqrt{\frac{M_2}{M_1}}       ..........(1)

where,

R_1 = rate of effusion of nitrogen gas = 79mL/s

R_2 = rate of effusion of sulfur dioxide gas = ?

M_1 = molar mass of nitrogen gas  = 28 g/mole

M_2 = molar mass of sulfur dioxide gas = 64 g/mole

Now put all the given values in the above formula 1, we get:

(\frac{79mL/s}{R_2})=\sqrt{\frac{64g/mole}{28g/mole}}

R_2=52mL/s

Therefore, the rate of effusion of sulfur dioxide gas is 52 mL/s.

4 0
3 years ago
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