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Bingel [31]
3 years ago
7

Atoms that have the same number of valence electrons in their outer shell

Chemistry
1 answer:
Vesnalui [34]3 years ago
7 0
Atoms that have the same number of valence electrons in their outer shell have similar chemical properties and are in the same group in the periodic table.
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An example of a double displacement is
mestny [16]

Answer:

D. AX + BY -> AY + BX

Explanation:

Double replacement:

It is the reaction in which two compound exchange their ions and form new compounds.

AB + CD → AC +BD

So from given list of reactions option D is correct while others are incorrect.

Other examples:

The reaction between sodium chloride and silver nitrate is double displacement reaction.

NaCl + AgNO₃   →  AgCl + NaNO₃

The anion and cations of both reactants exchange. The anion of sodium chloride (Cl⁻) combine with cation of silver nitrate (Ag⁺)  and form AgCl. While Anion of silver nitrate combine with cation of sodium chloride and form sodium nitrate.

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You want to compile a list of properties of a substance , but you don't have a way to measure mass it volume. What kinds of prop
spayn [35]

Explanation:

I Would Determine Mass,Volume And Weight

6 0
3 years ago
PLEASE HELP !!!!!!!
Romashka-Z-Leto [24]

Answer:

b

Explanation:

3 0
3 years ago
If 20 grams of N2 react completely with H2 , how many moles of NH3 are produced? Show Work
Maslowich
This is the balanced eq
N2 + 3H2 -> 2NH3
first you need to find mole of N2 by using
mol = mass ÷ molar mass.
mol N2= 20g ÷ (14.01×2)g/mol
=0.7138mol
then look at the coefficient between H2 and NH3.
it is N2:NH3
1:2
0.7138:0.7138×2
0.7138:1.4276 moles
moles of NH3 = 1.4276 moles
5 0
3 years ago
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