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Artyom0805 [142]

2 years ago

12

A scientist heats a sealed flexible container full of helium gas. What will most likely happen to the container as the gas absor

bs heat

2 answers:

pogonyaev2 years ago

8 0

The container will most likely explode

ad-work [718]2 years ago

6 0

It will expand because the helium atoms will move more quickly and get farther apart.

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On the periodic table, the majority of elements are classified as

Roman55 [17]

<span>On the periodic table, the majority of elements are classified as "Metals"

In short, Your Answer would be Option A

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8 0

2 years ago

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Identifying Characteristics of the Gas Laws

elixir [45]

Answer: The image from the question has the correct answers.

Explanation:

As summarized in the attached table.

8 0

2 years ago

Massive amounts of energy are contained in an atom's: Select one:

melamori03 [73]

Nucleus.
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6 0

3 years ago

What anions generally form precipitates? What are the exceptions?

8_murik_8 [283]

Answer:

Carbonates (CO3-2), phosphates (PO4-3) and sulfides (S-2) are insoluble.

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2 years ago

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In the presence of excess oxygen, methane gas burns in a constant-pressure system to yield carbon dioxide and water: CH4 (g) 2O2

Degger [83]

Answer:

The energy released will be -94.56 kJ or -94.6 kJ.

Explanation:

The molar mass of methane is 16g/mol

The given reaction is:

$CH_{4}(g) + 2O_{2} (g) --> CO_{2} (g)+ 2H_{2}O(l)$

the enthalpy of reaction is given as ΔH = -890.0 kJ

This means that when one mole of methane undergoes combustion it gives this much of energy.

Now as given that the amount of methane combusted = 1.70g

The energy released will be:

$=\frac{energy released by one moleXgiven mass}{molarmass} =\frac{-890X1.7}{16}= -94.56 kJ$

7 0

2 years ago