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Svetllana [295]
3 years ago
7

What do a mole of magnesium (Mg) and a mole of iron (Fe) have in common?

Chemistry
1 answer:
azamat3 years ago
9 0
What they have in common is that they both have the same number of atoms.
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What is the mass of oxygen that can be produced from 2.79 moles of lead(ll) nitrate
denis23 [38]

1.38 moles of oxygen

Explanation:

Thermal decomposition of Lead (II) nitrate is shown by the balanced equation below;

2Pb(NO₃)₂ → 2PbO + 4NO₂ + O₂

The mole ration of Lead (II) nitrate to oxygen is 2: 1

Therefore 2.76 moles of  Lead (II) nitrate will lead to production of? moles of oxygen;

2: 1

2.76: x

Cross-multiply;

2x = 2.76 * 1

x = 2.76 / 2

x = 1.38

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3 years ago
Select all of the following statements that represent the differences between a voltaic cell and an electrolytic cell. Group of
Sunny_sXe [5.5K]

Answer:

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3 years ago
Using the activity series provided. Which reactants will form products? Na > Mg > Al > Mn > Zn > Cr > Fe >
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Answer:

Fe + Cu(NO3)2 →

Explanation:

3 0
3 years ago
Why would a scientist only use observations to formulate a theory rather than follow the scientific method?
Alenkinab [10]

Answer: Observation is essential in science. Scientists use observation to collect and record data, which enables them to construct and then test theories

Explanation:

7 0
2 years ago
Which element below is the most reactive? Hydrogen chlorine neon oxygen
trapecia [35]

Answer:

Chlorine

Explanation:

Chlorine has an atomic number of 17 and a configuration of 2, 8, 7. In the outermost shell, it has 7 seven electrons which means that it needs just one more electron to attain an octet configuration in that shell. Therefore it's can react quickly with any nearby nucleophile.

5 0
3 years ago
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