Answer:
unsaturated
Explanation:
All solutions have a definite capacity of dissolving solute in it.
Unsaturated solutions are the solutions which contain less amount of solute than the maximum capacity of dissolving the solute. If more amount of solute is added in such a way a point is reached where addition of more solute cannot be dissolved. The solution is known as saturated solution.
Amount dissolved > Maximum solubility limit, the solution is saturated.
Amount dissolved < Maximum solubility limit, the solution is unsaturated.
If the amount of the salt exceeds the solubility limit, then the solution is saturated solution. If it is less than the limit given, then it is unsaturated solution.
The solubility = 0.667 grams per liter
Amount dissolved = 0.502 grams per liter
Since,
Amount dissolved < Maximum solubility limit, the solution is unsaturated.
Answer:
<em>Q1) How many molecules are present in the following quantities?</em>
a) 1.5055 x 10²³ molecules.
b) 2.7099 x 10²¹ molecules.
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<em>Q2) How many moles are present in the following quantities?</em>
a) 1.66 x 10⁻⁴ mol.
b) 1.66 x 10⁻¹⁵ mol.
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<em>Q3) What is the molar mass of each of the following substances?</em>
a) 18.0 g/mol.
b) 40.0 g/mol.
c) 53.45 g/mol.
d) 98.0 g/mol.
e) 234 g/mol.
f) 239.2 g/mol.
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<em>Q4) Convert the following to moles.</em>
a) 1.5 mol.
b) 0.058 mol.
c) 0.051 mol.
d) 0.042 mol.
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<em>Q5) Convert the following to grams.</em>
a) 4.40 g.
b) 48.045 g.
c) 17.48 g.
d) 54.0 g.
<em>Q6) How many molecules are present in the following masses?</em>
a) 5.68 x 10²1 molecules.
b) 3.345 x 10²5 molecules.
<em>Q7) Convert the following to grams.</em>
a) 0.664 g.
b) 169.83 g.
c) 5.712 g.
<em>Explanation:</em>
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Answer:
a) Ionic
Explanation:
Natural and artificial compounds can be formed from two or more metals.
If the difference in electronegativity between the metals is very large, these compounds may be bonded by a mixture of chemical bonds. Those can be metallic bonds and other types of bonds.
According to the electronegativity difference between two components, if it is equal or higher than 1.7 they are classified as ionic bonding. In this sense, if we have two metals with a very large difference of electronegativity. Let's suppose higher than 1.7, they will form an ionic bonding.
Finally, Answer is a) Ionic bonding when the difference in electronegativity is very large.
1. Tributary
2. Erosion
3. Where a river turns
The final temperature : 78.925°C
<h3>Further explanation </h3>
Heat can be calculated using the formula:
Q = mc∆T
Q = heat, J
m = mass, g
c = specific heat, joules / g ° C
∆T = temperature difference, ° C / K
Energy releases = 130 kcal = 130 x 4.18 kJ=543.4 kJ
The final temperature :
Final temperature :
ΔT=final-initial
51.925°c=final-27°c
final = 51.925+27=78.925°C
