Answer:
A
Explanation:
2.60 g of CoCl2 was dissolved in water to make 100 mL of solution.
Number of moles of CoCl2 dissolved = mass/molar mass
= 2.60/130
= 0.02 mole
Molar concentration of solutions = number of moles/volume (dm3)
= 0.02/0.1
= 0.200 M
Hence, the molar concentration of thesolution is 0.200 molar.
Correct option = A
An outline is a line drawn around an element, enclosing the element content, padding, and border spaces.
A form or figure's outline is defined by a line or combination of lines. The lines restrict the shape, isolating it inside the composition or the area. The shapes are created by the outlines.
The phrase "outline" in art refers to the lines, real or apparent, that define or confine a figure (or shape) within the field of vision, with the total number of these lines defining the contour of the figure.
An item is depicted by lines of contour without shade in an outline sketch or drawing, leaving out internal detail. A variety of markers are used to transform an object's seeming edge into a useful reference on paper.
To learn more about drawing refer to:
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Answer:
C
Explanation:
because warmer air lies above the cooler air
Answer:
The final volume was 41
Explanation:
m = 147 grams
d = 7.00 g/mL
V = x - 20
=========
d = m/V
=========
7 = 147 / (x - 20)
Multiply both sides by x - 20
7*(x - 20) = 147
Divide both sides by 7
x - 20 = 147 / 7
x - 20 = 21
Add 20 to both sides
x = 21 + 20
x = 41
The final volume was 41
Matter only moves if a force pushes or pulls is true