Answer:
The student has to weigh 7.9 ±0.1 grams
Explanation:
Density of acetone : 0.790 g/cm³
If the student has to measure 10.0 mL of acetone, he can weigh an specific mass.
Density of acetone = Mass of acetone / Volume of acetone
cm³ = mL
0.790 g/cm³ = Mass of acetone / 10 cm³
0.790 g/cm³ . 10cm³ = 7.9 g
Answer:
H+ ----- Br-
H+ ----- Cl-
O₋₋ -----2H++
CH3 ----- O- ------ H+
Explanation:
Dipole moment occurs when there is bonding between a very strong electronegative element and hydrogen atom.
Electronegative elements are the element which attract electrons towards themselves, (that is they have strong affinity for electrons).
Generally, group 7 elements (Fluorine, Chlorine, Bromine, Iodine) of the periodic table are highly electronegative
Answer:
the answer for a is approximately 2160 grams
Explanation:
i hope this helps
Answer:
C they are moving away from each other
Explanation:
Given the energy obtained by the human body from a candy bar = 915 kJ
Energy required to vaporize 1 g of water at it's boiling point is referred to as heat of vaporization of water.
The heat of vaporization of water = 2260 J/g
Mass of water that can be vaporized by 915 kJ of heat =
Density of water = 1 g/mL
Converting mass to volume in L of 405 g water:
Therefore, 0.405 L of water can be vaporized