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Digiron [165]
3 years ago
15

A student does not observe a change when holding a test tube in a flame. However, a change is expected. What is the most likely

reason for this?
Chemistry
2 answers:
love history [14]3 years ago
5 0
Heat is energy, and that energy would eventually cause the object to undergo a phase change.
astraxan [27]3 years ago
5 0

D. The reactants were not heated long enough.

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-Dominant- [34]

Answer:

The answer is SiO2

Explanation:

Silocon dioxide is written without a 1 after the silocon and with a 2 after the oxygen.

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A solution is a homogeneous mixture of one or more solutes dissolved in a solvent. A specific volume of solvent is only able to
Rashid [163]
I just got this question; the answer is C: supersaturated. Hope this helps.
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Magnesium oxide can be made by heating magnesium metal in the presence of oxygen. The balanced equation for the reaction is
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Magnesium+Oxygen-->Magnesium\ Oxide\\\\You\ need\ complement\ factors:\\\\
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Compound A melts at 801o C and is soluble
Karo-lina-s [1.5K]

Explanation:

Organic compounds are defined as the compounds which contain carbon as their main element. For example, CH_{3}OH is an organic compound.

Generally, organic compounds are non-polar in nature and due to the presence of covalent bonding organic compounds have low melting point.

As compound A melts at 801^{o}C and is soluble  in water. This means it is an ionic compound as it has high melting point and it is also polar in nature.

Whereas compound B melts at 24^{o}C and is insoluble  in water. This means that this compound has covalent bonding and it is also non-polar in nature . Hence, it is more likely to be organic in nature.

Thus, we can conclude that compound B is more likely to be an organic

compound.

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3 years ago
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