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3 years ago

How did the development of the earliest idea about atoms differ from the later work of scientists?

2 answers:

6 0

The early ideas of the atom states that the indivisible object is hollow or is a solid object with nothing inside. The later discoveries or works of the scientists states that inside the atoms are the subatomic particles which are the electrons, protons, and neutrons.

mamaluj [8]3 years ago

6 0

Answer:

C Edu2020

Explanation:

Explanation

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The volume of a sample of water is 2.5 milliliters (mL). The volume of this sample in liters (L) is

Masteriza [31]

Answer:

2.5 Times . 10–3 L.

Explanation:

1 L = 1000 mL

1 mL = 1×10⁻³ L

2.5 mL / 1000 = 2.5×10⁻³ L

2.5 mL . 1×10⁻³ = 2.5×10⁻³ L

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3 years ago

Read 2 more answers

scientists often work on projects for a long time and fail to see sources of error in their research. Which process allows an ou

Natalka [10]

Answer is: Peer review.

Peer review is used to maintain quality standards, point to sources of error and improve performance.

Work on project is evaluated by people with similar competences (qualified members of a profession within the relevant field) as the scientist who are performing the work.

It is common in the field of health care.

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3 years ago

Energy is the ability to do __________.

Alexxandr [17]

Energy is the ability to be able to do things it’s what keeps us awake it’s how we’re able to do things it’s all-around within us and in things we use every day but remember there are different types of energy

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3 years ago

A flask is filled with 6.0 atm of N2 and 6.0 atm of H2. The gases react and NH3 is formed. What is the pressure in the flask aft

777dan777 [17]

<u>Answer:</u> The total pressure in the flask is 8.0 atm

<u>Explanation:</u>

We are given:

Initial partial pressure of nitrogen gas = 6.0 atm

Initial partial pressure of hydrogen gas = 6.0 atm

The chemical equation for the reaction of nitrogen and hydrogen gas follows:

$N_2+3H_2\rightarrow 2NH_3$

By Stoichiometry of the reaction:

3 atm of hydrogen gas reacts with 1 atm of nitrogen gas

So, 6.0 atm of hydrogen gas will react with = $\frac{1}[3}\times 6=2atm$ of nitrogen gas

As, given amount of nitrogen gas is more than the required amount. So, it is considered as an excess reagent.

Thus, hydrogen gas is considered as a limiting reagent because it limits the formation of product.

Pressure of nitrogen gas left = [6 - 2] = 4.0 atm

By Stoichiometry of the reaction:

3 atm of hydrogen gas produces 2 atm of ammonia gas

So, 6.0 atm of hydrogen gas will produce = $\frac{2}{3}\times 6=4atm$ of ammonia

Total pressure in the flask = [4 + 4] = 8.0 atm

Hence, the total pressure in the flask is 8.0 atm

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2 years ago

PLEASE HELP!!!!!!!!!!!!!!!!!!According to the periodic table, a single carbon atom had a mass of 12.11 amu. what is he mass of a

Oxana [17]

A carbon 12 atom is 1.99200e-23 grams

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2 years ago