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kolbaska11 [484]
3 years ago
14

Magnesium and calcium have similar chemical properties because their atoms in the ground state have

Chemistry
2 answers:
stiv31 [10]3 years ago
4 0

Answer:

The answer is 4

Explanation:

Since magnesium and calcium have the same number of valence electrons, and since the valence electrons are located in the outermost shell so the reasonable is 4

zhenek [66]3 years ago
3 0

Answer:

4- two electrons in the outermost shell

Explanation:

  • Magnesium and Calcium both have 2 electrons in their valence/outermost shell. Chemical properties of an element is determined by the configuration of its electrons in orbits around nucleus. Since the number of protons and electrons are the same it essentially means atomic number determines the chemical behavior of an element so that is why Mg and Ca have same chemical properties.
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The electrical wires in your home use what type of circuits?
Helga [31]
The house wiring should be done parallel because, in parallel connection there will be more advantages than a series connection.

Let a house is wired in series and it contains a fan, tube light, TV, refrigerator. All the devices are connected in series. Now, due to some disturbance the fan speed working or it burned. Then since the connection was a series, due to one appliance failure causes the whole circuit to fail. If it is burned that means it making an open circiut. Then there will be no current flow in the circuit.

Now if it was a parallel connection as we know already, the parallel connection is nothing but individual appliances connected to the same line by tappings. That means there's no dependency of one appliance on another. So if an appliance fail or burns it doesn't effects the remaining appliances. And there will be uninterrupted supply to the healthy appliances can be achieved.

That’s why we use parallel for house wiring
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3 years ago
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Methyl orange (HMO) is an acid-base indicator. Its two forms in solution are HMO (red) and MO- (yellow). When HMO is added to di
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Answer:add acid

Explanation:

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