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mezya [45]
3 years ago
15

After Dalton's proposed atomic theory, several atomic models were developed. Which model was the first propose the existence of

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

Answer: Rutherford's model was the first propose of the existence of small, dense nucleus's.

Explanation: The atom, as described by Ernest Rutherford, has a tiny, massive core called the nucleus. The nucleus has a positive charge. Electrons are particles with a negative charge. Electrons orbit the nucleus. The empty space between the nucleus and the electrons takes up most of the volume of the atom.

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What would be the properties of the 5th state of matter? (bosse-instein condensate)
kolbaska11 [484]

Answer:

a state of matter created when particles, called bosons, are cooled to near absolute zero (-273.15 degrees Celsius, or -460 degrees Fahrenheit).

Explanation:

hope this helps

pls mark brainliest

8 0
3 years ago
White phosphorus (P4) is used to produce phosphorus oxides, such as P4O10. How many kilograms of P4O10 would be produced from 41
eduard

Answer:

0.93956kg

Explanation:

Equation for the reaction is given as;

P4 + 5O2 --> P4O10

From the equation, 1 mole of P4 produces 1 mole of P4O10.

Mass = Number of moles * molar mass

Mass of P4 = 1 mol * 123.88 g/mol = 123.88 grams

Mass of P410 = 1 mol * 283.886 g/mol = 283.886 g

This means 123.88 grams of P4 produced 283.886 g of P4O10.

How many kilograms of P4O10 would be produced from 410. g of pure P4 ?

123.88 = 283.886

410 = x

x = (410 * 283.886 ) / 123.88

x = 939.56g

Upon converting to Kilogram by dividing by 1000

x = 0.93956kg

8 0
4 years ago
The number of particles in one mole of a chemical substances is 602,200,000,000,000,000,000,000 particles. What is the correct w
crimeas [40]

The correct way to write this number in scientific notation : 6.022 x 10²³

<h3>Further explanation </h3>

Scientific Notation is a standard form of writing numbers used in mathematical operations

The rules:

1. Writing order : first digit, decimal point, next digit

2. Then followed by powers of 10 (the value can be +/-)

If the value is> 10 (the power of 10 is +), the decimal point is moved to the left, to the right of the first digit

If the value is <10 ((the power of 10 is -), the decimal point is moved to the right, to the right of the first digit

I certainly didn't count the details of the number of zeros listed, but only saw the answer choices.

And the right ones are: 6.022 x 10²³

3 0
3 years ago
Read 2 more answers
How many protons, electrons, and neutrons does a magnesium-25 atom have if it has a sharge=2?
Sveta_85 [38]

Answer:

There are 12 protons, and 10 electrons in an Mg2+ ion, the normal amount of neutrons is 12.

Explanation:

3 0
3 years ago
Particles of a liquid
Tcecarenko [31]

Answer:

A

Explanation:

B. That's a solid

C. Liquid is the only thing that can have viscosity

D. Not necessarily the case

4 0
3 years ago
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