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qwelly [4]
2 years ago
9

List the exceptions to Metals showing a high density?

Chemistry
1 answer:
Bumek [7]2 years ago
7 0

Answer:

Osmium, 22.6 g/cc.

Iridium, 22.4 g/cc.

Platinum, 21.45 g/cc.

Rhenium, 21.2 g/cc.

Uranium, 20.2 g/cc.

these are are metals having a high density

Explanation:

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LightWave. Lightwave forms the most important example of a transverse wave!
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Bluebirds and blue jays, two bird species live in a small wooded area. The blue jays are very aggressive and eventually take ove
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yes

Explanation:

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3 years ago
So I saw this question: If 28.0 grams of Pb(NO3)2 react with 18.0 grams of NaI, what mass of PbI2 can be produced? Pb(NO3)2 + Na
Nataly_w [17]

mass of PbI₂ = 27.6606 g

<h3>Further explanation</h3>

Given

Pb(NO₃)₂ + NaI → PbI₂ + NaNO₃

28.0 grams of Pb(NO₃)₂ react with 18.0 grams of NaI

Required

mass of PbI₂

Solution

Balanced equation

Pb(NO₃)₂ + 2NaI → PbI₂ + 2NaNO₃

The principle of a balanced reaction is the number of atoms in the reactants = the number of atoms in the product

mol Pb(NO₃)₂ :

= 28 : 331,2 g/mol

= 0.0845

mol NaI :

= 18 : 149,89 g/mol

= 0.12

Limiting reactant : mol : coefficient

Pb(NO₃)₂ : 0.0845 : 1 = 0.0845

NaI : 0.12 : 2 = 0.06

NaI limiting reactant (smaller ratio)

mol PbI₂ based on NaI

= 1/2 x 0.12 = 0.06

Mass PbI₂ :

= 0.06 x 461,01 g/mol

= 27.6606 g

4 0
3 years ago
Gasoline has an octane number of 70.
mariarad [96]
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(11 points) can y'all do science on this app just wondering?
Shalnov [3]
Of course, you can ask science questions under biology or another subject.
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2 years ago
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