<span>In a polar covalent bond, the electrons shared by the atoms spend a greater amount of time, on the average, closer to the nucleus of one atom than the other.</span>
Answer:
11.648 g
Explanation:
From the question,
Note: an object immersed in a fluid, displaced an amount of fluid, equal to its volume.
Density = mass/volume.
D = M/V................................................................ Equation 1
Where D = density of the copper block, M = mass of the copper block, V = volume of the copper block.
make M the subject of the equation
M = D×V......................................... Equation 2
Given: D = 8.96 g/mL, V = 1.3 mL
Substitute into equation 2
M = 8.96×1.3
M = 11.648 g
Hence the mass of the block is 11.648 g
Answer:
32 g
Explanation:
molar masses of elements such as sulfur can be found on the periodic table.
the molar mass listed on the periodic table equals 1 mole of the atom which also equals 6.02×10^23
therefore, 32g = 1 mole of sulfur = 6.02×10^23
(1 mole always equals 6.02×10^23)
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