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aksik [14]
3 years ago
9

What experimental observations indicate a gas is being released?

Chemistry
1 answer:
joja [24]3 years ago
3 0

Answer:

new substances formed, as evidenced by the color changes and bubbles. Some signs of a chemical change are a change in color and the formation of bubbles. The five conditions of chemical change: color chage, formation of a precipitate, formation of a gas, odor change, temperature change.

HOPE THIS HELPED!!!!!!!!!!!!!!XDDDDDDDDDD

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If I contain 3 moles of gas in a container with a volume of 60 liters and at a
viktelen [127]

Answer:    n = 3.0 moles

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3 years ago
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"It is not the union that organizes the employees; it is management."
blsea [12.9K]

The statement<em> "it is not the union that organizes the employees; it is management "</em> means that :

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Hence we can conclude that, the management creates the climate which allows the union to convince employees to accept union representation.

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3 years ago
A _____ exists in the same physical state as that of the reaction it catalyzes.
klio [65]
<span>A Homogeneous Catalyst exists in the same physical state as that of the reaction it catalyzes.

Explanation:
                     
Catalysts are classifies as follow,
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</span>Homogeneous Catalyst are those which are in same phase as that of reactants are.

Example:

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In this reaction catalyst and reactants all are in same phase i.e. Liquids.

Heterogeneous Catalyst are those which are in different phase as that of reactants are.

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3 years ago
In the alpha decay of Francium-221, what daughter element is produced?
aleksley [76]
<span>Astatine-217 is the daughter element produced by the alpha decay of Francium-221.</span>
8 0
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How many electrons and protons are contained in an atom of arsenic
madam [21]

Name Arsenic

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Number of Electrons 33

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