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3 years ago

Why does the state of matter change for the alliance family?

Chemistry

2 answers:

Andru [333]3 years ago

5 0

Answer:

Explanation:

in organic chemistry an alkane also known as paraffin the standard entalphy changes of combustion change in cH for alkane increase by about 650 kJ/mol both of these process raise the octane number of the substance

gtnhenbr [62]3 years ago

3 0

U done got the answer

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Which of the following elements is the smallest?

Oliga [24]

Answer:

Explanation:

The atomic radius of elements are used to estimate the sizes of elements. The atomic radius is taken as half of the inter-nuclear distance between two covalently bonded atoms of non-metallic elements or half of the distance between two nuclei in the solid state of metals.

To solve this problem we will obtain the atomic radius values of the given elements from a standard atomic radius table;

Si 111 pm

P 98 pm

Cl 79 pm

S 87pm

pm = picometer

We see that chlorine has the least atomic radius

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3 years ago

How would I fill out this chart?

Sloan [31]

Answer:

[Top row] - Chemical bonds

[2nd Row L-R] - Force, Ionic, Covalent

[3rd Row L-R] - Atoms, Lost or Gained, Shared

[4th Row L-R] - More stable, Metal and Nonmetal, Nonmetal and Nonmetal

Explanation:

Chemical bonds are a force that hold together atoms in a substance to make compounds more stable.

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Covalent in which electrons are shared where attraction is between a nonmetal and nonmetal.

I have been able to fill the concept map using the correct terms or phrases. The concept map talks about chemical bonds. There are two types of chemical bonds; which ionic bond and covalent bond.

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3 years ago

What model would represent individual atoms of different types that repeat to form a crystal

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Answer:

Although atoms are the smallest units that can be found in all matter, these atoms have a complex structure when experimentally analyzed. In order to understand almost all concepts in chemistry, it is essential to clearly understand the basic structure of an atom. Crystals are solid compounds made out of a number of atoms or molecules. There are particular arrangements in crystals. These arrangements are called crystal structures. Examining the crystal structure is very important in determine

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