The answer to your questions are
Question 1 - D - stationary
Question 2 - C - I'm not 100% sure
Question 3 - A - the northern subtropical jet stream
Question 4 - A - cold
Answer:
condensation - B, melting - C, sublimation - A, freezing - D
Explanation:
condensation : condenstaion is process of change of phase of a substance from gaseous to liquid
evaporation : evaporation is process of change of phase of a substance from liquid to gaseous.
melting : melting is process of change of phase of a substance from solid to liquid.
freezing : freezing is process of change of phase of a substance from liquid to solid.
sublimation : sublimation is process of change of phase of a substance from solid to gaseous.
The amount, in liters, of the 0.2M NaCl solution required to measure out 3.0 grams of NaCl is 0.25 Liter.
<h3>Stoichiometric problem</h3>
Recall that the molarity of a solution is the ratio of the number of moles of solutes in the solution to the volume of the solution.
Molarity = number of moles/volume in Liters
Thus, a 0.2M NaCl solution contains 0.2 moles of NaCl in 1 Liter of the solution.
But 3.0 grams of NaCl is needed. Recall that:
Number of moles = mass/ molar mass
3.0 grams of NaCl = 3.0 grams/58.88 g/mole = 0.051 moles
If 1 Liter of the solution contains 0.2 moles of NaCl, then the amount of the solution that will contain 0.051 moles (3.0 grams) will be:
1 x 0.051/0.2 = 0.25 Liter
The volume of 0.2M NaCl solution required in order to measure out 3.0 grams of NaCl is 0.25 Liter.
More on stoichiometric problems can be found here: brainly.com/question/14465605
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