Number 1 is a and number 2 is none
The solvent will have a lower freezing point.
From the top going anti clockwise:
Summer,
Fall,
Winter,
Spring
Explanation:
one mole of any substance there are 6.022×1023 units of that substance. (This number is called Avogadro's number, NA.)
We need to convert the mass of silicon to moles using the molar mass of silicon, 28.06gmol. This number means that one mole of pure silicon would have a mass of 28.06g. Our given mass, however, is in milligrams; to convert this to grams we'll use the conversion factor 1g103mg:
5.86mg Si(1g103mg)=0.00586g Si
Now, using silicon's molar mass, we'll convert this mass to moles of Si:
0.00586g Si(1mol Si28.06g Si)=2.09×10−4mol Si
Finally, let's use Avogadro's number to convert
Sodium tritioantimonate(III) and water are the products of the reaction between antimony(III) oxide and sodium hydroxide.
Sb2O3(s)+NaOH(aq)→Na3SbO3(aq)+H2O(l)
Balance the reaction from antimony, sodium, then hydrogen and oxygen.
Sb2O3(s)+6NaOH(aq)→2Na3SbO3(aq)+3H2O(l)
The equation is already balanced.
When each element in a chemical reaction has the same number of atoms and total charge on both the reactants and product sides of the equation, the reaction is said to be balanced. In other words, both sides of the reaction have an equal mass and charge of the components.
Because a chemical reaction is simply an arrangement of the atoms of the supplied elements, a chemical equation must be balanced. For the law of conservation of mass to be followed, the chemical equation must be balanced.
Learn more about chemical reaction here:
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