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dangina [55]
3 years ago
5

Of the groups below, which are the least chemically reactive?

Chemistry
1 answer:
seropon [69]3 years ago
8 0

It is actually Group 3A elements. I just took the test.

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What's different about the valence electrons of Carbon and Silicon?
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Carbon is smaller in size than Silicon. ... Carbon has high ionization enthalpy than silicon and lower electron gain enthalpy than Si! Explanation: It is placed in the periodic table before Silicon and lack a d-orbital smaller size due to which effective nuclear force on the valence shell is much higher than in Si!

3 0
2 years ago
Which one of these terms represents the chemistry definition and why are the other three wrong? Please help
motikmotik

Answer:

D. Fire

Explanation:

Fire represents that if any acid or chemical reaction occurs, there may be chances of fire/explosion occurring. Wind, sunlight and dust doesn't matter when it comes to experimenting with chemicals.

Hope it helped! Mark BRAINLIEST!

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4 0
2 years ago
Name the following compound: <br> C5Si7
skad [1K]

Answer:

Pentacarbon heptasilicide.

Explanation:

In order to name the following compound, we need to identify whether it is molecular or ionic.

Molecular compounds consist of non-metal atoms, while ionic compounds would have metal cations in their composition.

In the given compound, C_5Si_7, we have two non-metals, carbon and silicon, meaning we should follow the molecular compound naming rules. The rules involve using prefixes to state the number of individual atoms.

The two prefixes required here are 'penta' for 'five' to indicate 5 carbon atoms present and 'hepta' for 'seven' to indicate 7 silicon atoms present.

The first part of the name would be pentacarbon (notice that the standard name for the first element is used). The second part would be heptasilicide (notice that the second atom would have an ending of -ide followed by the standard beginning of silicon).

4 0
3 years ago
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