Answer:
The mixture 1/ must be homogeneous where there is one or more dissolved salts; 2/ should only contain one liquid component.
Explanation:
This method drives off the liquid components from the solid components. The process typically involves heating the mixture until no more liquid remains. Prior to using this method, the mixture should only contain one liquid component, unless it is not important to isolate the liquid components. This is because all liquid components will evaporate over time. This method is suitable to separate a soluble solid from a liquid.
Note : In many parts of the world, table salt is obtained from the evaporation of sea water. The heat for the process comes from the sun.
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Answer:
Explanation:
Density is found by dividing the mass by the volume.
The mass of the object is 11 grams and the volume is 13 milliliters.
Substitute the values into the formula.
Divide.
Round to the nearest hundredth. The 6 in the thousandth place tells us to round the 4 to a 5.
The density is about <u>0.85 grams per milliliter.</u>
Answer:
P₂ = 300 atm
Explanation:
Given that,
Initial volume, V₁ = 600 L
Initial pressure, P₁ = 400 atm
We need to find the pressure if the volume is 800 L.
We know that the relation between pressure and volume is given by :
So, the new pressure is equal to 300 atm.
Answer:
QP
Explanation:
P has 9 electrons.
Electronic Configuration : 2, 7
Valence electrons : 7
P needs 1 electron to get stable electronic configuration.
Q has 3 electrons.
Electronic Configuration : 2, 1
Valence electrons : 1
P needs to loose 1 electron to get stable electronic configuration.
Q donates 1 electron,
Q -----> Q+ + 1 e-
P gains 1 electron,
P + 1 e- -----> P-
Q+ + P- -----> QP
This is an ionic compound.
A homogenous mixture is uniform and thus hard to recognize as a mixture. An example is water.
