How do you know that oxygen was the gas removed from the volume of air and not another

1 answer:

8 0

One way of knowing that oxygen was the gas removed from the volume of air and not another is to know what the volume of air is made of first. When the composition of the volume of air is already identified, then next would be the process of separating these elements from each other and as to which is to be separated first. This would usually lead to knowing their masses, their boiling and freezing points, the temperatures at which they condense, and so on. This is to identify their differences to each other and use those differences to successfully separate those elements to each other.

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Plasma is often in stars, which are likely to contain?

elena-s [515]

Below are the choices that can be found from other sources:

A) elements
B) ions
C) molecules
D) neutrons

the answer is ions.

A Star and hence our Sun, is an almost entirely ionized ball of plasma, consisting of electrons and ions, in which there is hardly any gas (neutral atoms). The movement of the plasma produces strong magnetic fields and corresponding electric currents.

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3 years ago

An article in a magazine denies that Earth is warming and climate change is occurring. The writer reports that this season was t

ivann1987 [24]

First off, you should be looking at the whole world, not just the northeastern US. Are other regions warming? Can you provide proof that simply because the northeast received a lot of snow and low temperatures, climate change is not a viable theory?

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3 years ago

___________ have a charge of +1.

stiv31 [10]

Answer:

B) Protons

Explanation:

A proton has positive charge of 1.
Electrons are the negatively charged particles of atom.
An atom consists of a positively charged nucleus surrounded by one or more negatively charged particles called electrons
To find the ionic charge of an element you'll need to consult your Periodic Table. On the Periodic Table metals (found on the left of the table) will be positive. Non-metals (found on the right) will be negative.

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3 years ago

The half-life of carbon-14 is about 6000 years. assume that a sample of charcoal is formed by burning of living wood 15,000 year

zimovet [89]

The daughter isotope has an atomic number one less than the parent and a mass number two less. : A. : 1 20) The half-life of carbon-14 is about 6000 years. Assume that a sample of charcoal formed byburning of living wood 15,000 years ago. How much of the original carbon-14 would remain today? A) more than one-half

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3 years ago

Which one is not acid? Na₂O or CO₂

vodka [1.7K]

Answer:

It is Na2O because it doesn't show any acidic properties.

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2 years ago