The order of the solutions from lowest to highest concentration : A, B, C
<h3>Further explanation</h3>
Given
the following solutions
Required
order of increasing concentration
Solution
Molarity shows the number of moles of solute in every 1 liter of solution.
Solution A : 0.5 moles : 2 L solution = 0.25 M
Solution B : 1 moles : 3 L solution = 0.33 M
Solution C : 1.5 moles : 4 L solution = 0.375 M
Helium is very difficult to liquify because it only exists in its liquid form at an extremely low temperature. This temperature is <span>low temperature of −269 °C (about 4 K or −452.2 °F). It is only possible to maintain liquid helium in a highly artificial environment where this low temperature can be created. </span>
True is correct answer.
Polymerization is the process of linking it has a smaller molecules to form has a long chains of higher molecular weight.
Hope it helped you.
-Charlie
The subscript 2 indicate that there are two atoms of chlorine in the compound.
<u><em> Explanation</em></u>
Subscript in the chemical formula indicate the number of atoms of the element immediately before the subscript.
In MgCl₂ there are two(2) atoms of chlorine since Subscript 2 is immediately after chlorine.
<h3>
Answer:</h3>
0.211 moles
<h3>
Explanation:</h3>
From the Question;
- Molecules of H₂O = 1.27 × 10^23 molecules
We are required to calculate the number of moles
- we need to know that 1 mole of a compound contains a number of molecules equivalent to the Avogadro's constant, 6.022×10^23.
- Therefore, 1 mole of water, H₂O = 6.022×10^23 Molecules
- To get the number of moles we divide number of molecules by the Avogadro's number.
Number of moles of water = 1.27 × 10^23 molecules ÷ 6.022 × 10^23 molecules
= 0.211 Moles
Thus, the number of moles of water that are equal to 1.27 × 10^23 molecules is 0.211 moles.
