3 years ago

true or false Rutherford's nuclear atomic model explains why electrons fall into and collide with the nucleus

Chemistry

1 answer:

svetoff [14.1K]3 years ago

8 0

Answer:

false

Explanation:

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Drain cleaner has a pH of about 14. How can it be classified, based on its pH?

LUCKY_DIMON [66]

It can be classified as a base

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3 years ago

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When 1000 C of charge is passed through CuSO4 solution, x g of copper is deposited. How much charge should be passed through the

Stels [109]

Number of charge = 5018 C

<h3>Further explanation</h3>

Given

1000 C of charge for x grams of copper

Required

Number of charge

Solution

Faraday's Law :

$\tt W=\dfrac{e.i.t}{96500}\\\\W=\dfrac{e.Q}{96500}$

For 1000 C, W = x grams

$\tt x=\dfrac{1000.e}{96500}=0.0104e$

For 5x grams :

$\tt 5x=\dfrac{e.Q}{96500}\\\\5\times 0.0104e=\dfrac{e.Q}{96500}\\\\Q=\dfrac{96500\times 5\times 0.0104e}{e}=5018~C$

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3 years ago

Calculate the value of AE for a system that loses 50 J of heat and has 150 J of work Performed on it by the surroundings.

gavmur [86]

Answer:

100 j

Explanation:

bascially u j subtract 50 from 150 because the system lost 50 j but theres 150 in its surroundings

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3 years ago

A fixed quantity of gas at 21 °c exhibits a pressure of 752 torr and occupies a volume of 5.12 l. (a) calculate the volume the g

mariarad [96]

A. PV=constant
752 torr = 0.989 atm
(0.989 atm)(4.38 L) = (1.88 atm)V
V = 2.30 L

B. T/V = constant
(294 K)/(4.38 L) = (448 K)/V
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Hoped this helped ( I believe it's right, sorry if it's not )

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A volume is measured experimentally as 4.26mL. what is the percentage error, given that the correct value is 4.15mL

DaniilM [7]

% error = | accepted value - experimental value | / accepted value × 100

Step one- | 4.15mL - 4.26mL | = 0.11

Step two- 0.11 / 4.15 = 0.027

Step three- -0.027 × 100 = 2.7%

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