Answer:
The Chemical formula of sodium is Na.
The Chemical formula of oxide is O.
Explanation:
Therefore we know that the term 'valency' is called as the combining capacity of an atom of an element.
So by taking the valency of Sodium and Oxide, we get
Sodium with valency '1' and Oxide with valency '2'.
Na O
1 2
When you cross over you get 'Na2O' as the formula for sodium oxide.
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TY.
Answer:
When the weather is very cold outside, let the cold water drip from the faucet served by exposed pipes. Running water through the pipe - even at a trickle - helps prevent pipes from freezing.
Remember to keep both cold and hot water dripping during these frigid temperatures. We know to keep the faucets dripping when temperatures dip below freezing, but experts say you need to keep both cold and hot water open
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Explanation:
Answer: D=8.27 g/cm³
Explanation:
Density is mass/volume. Mass is in grams and volume is in liters. In this case, the problem wants our volume to be in cm³. All we need to do is to make some conversions to convert kg/m³ to g/cm³.
With this equation, the m³ and kg cancel out, and we are left with g/cm³.
D=8.27 g/cm³
Butane undergoes combustion to produce carbon dioxide and water, expressed in the following reaction <span> C4H10 (g) + O2 (g) → 4CO2 (g) + 5H2O (g) . 1 mole of butane is to 4 moles of CO2. In this case, when 22.8 grams of butane or 0.393 moles of it, 69.18 grams of carbon dioxide is produced</span>
Answer:
A mixture
Explanation:
The substance whose magnetic properties is tested is mixture of many compounds, elements or molecules.
A mixture has the following properties:
- Their composition is indefinite
- Their constituents retain their identity
- Constituents react differently to changed conditions
- Their constituent can easily be separated by physical procedures.
Since a part of the mixture responds differently to magnetism, we can say, the other part is made up of a different set of compound.
