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Andrej [43]
3 years ago
12

Given the formula for a compound:

Chemistry
1 answer:
Elina [12.6K]3 years ago
8 0

Answer:

3.

Explanation:

4 carbon equals butane

O=C-NH2 equals amide

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What would the concentration be of a solution made
Anastasy [175]

Answer:

3 M

Explanation:

Given data

  • Moles of sodium hydroxide (solute): 5 moles
  • Volume of solution: 2 liters

We can calculate the molar concentration, or molarity (M), of the solution using the following expression.

M = moles of solute / volume of solution (in liters)

M = 5 moles / 2 L

M = 2.5 M ≈ 3 M (if we round off to 1 significant figure)

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3 years ago
Why is the top ruler more reliable in measuring length than the bottom ruler?
rodikova [14]
I’m assuming the top ruler has more measurement points, like more specific numbers. This would mean the top ruler is more reliable because you can be more specific with your measurements
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3 years ago
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the electron configuration of an element in its ground state is illustrated above. which, if any, of the three principles that d
Alex

Answer:

hello your question is incomplete attached below is missing part

answer : Pauli's exclusion principle

Explanation:

The principle that was disobeyed is <em>Pauli's exclusion principle</em> this is because the  Pauli's exclusion principle states that no two electrons can have the same set of quantum number.

In Box A the two electrons , have the same spin which means  they have the same quantum number ( disobeys Pauli's exclusion principle )

6 0
3 years ago
Differences between hypothesis and theory​
Sphinxa [80]

Answer:

A hypothesis is either a suggested explanation for an observable phenomenon, or a reasoned prediction of a possible causal correlation among multiple phenomena. In science, a theory is a tested, well-substantiated, unifying explanation for a set of verified, proven factors.

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7 0
3 years ago
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The boiling points for the homonuclear diatomic molecules in the halogen family are 85 K, 238 K, 332 K, 457 K and 610 K. Which s
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Answer:

Cl_{2} has boiling point of 238 K

Explanation:

Boiling point depends on different intermolecular force such as molecular wight, dipole-dipole attraction force, hydrogen bonding, ionic attraction force.

Homonuclear diatomic molecules are covalent non-polar molecules and thereby free from dipole-dipole attraction force, hydrogen bonding and ionic interaction forces.

Hence, boiling point of homonuclear diatomic molecules depends solely on molecular weight.

We know, higher the molecular weight of a molecule, higher will be its boiling point. This phenomenon can be realized in terms of increasing london dispersion force with increase in molecular weight.

Decreasing order of molecular weight of halogen molecules :

I_{2} > Br_{2} > Cl_{2} > F_{2}

So, decresing order of boiling point of halogen molecules:

I_{2} > Br_{2} > Cl_{2} > F_{2}

Hence Cl_{2} has boiling point of 238 K

4 0
3 years ago
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