Answer:
D. Ten apples cost $9
Explanation:
C, the cost in dollars of buying apples is a function of the number (n) of apples bought
C (10) = $9 implies that the cost of buying 10 apples is $9
Answer:
(II) only correctly rank the bonds in terms of increasing polarity.
Explanation:
Bond polarity is proportional to difference in electronegativity between bonded atoms.
Atoms Electronegativity Bond Electronegativity difference
Cl 3.0 Cl-F 1.0
Br 2.8 Br-Cl 0.2
F 4.0 Cl-Cl 0
H 2.1 H-C 0.4
C 2.5 H-N 0.9
N 3.0 H-O 1.4
O 3.5 Br-F 1.2
I 2.7 I-F 1.3
Si 1.9 Cl-F 1.0
P 2.2 Si-Cl 1.1
Si-P 0.3
Si-C 0.6
Si-F 2.1
So, clearly, order of increasing polarity : O-H > N-H > C-H
So, (II) only correctly rank the bonds in terms of increasing polarity
Answer:
nano3+agcl2
Explanation:
double displacement reaction
Answer:
biosphere
Explanation:
The carbon cycle is the biogeochemical cycle by which carbon is exchanged between the biosphere, geosphere, hydrosphere and atmosphere of the Earth.
The biosphere refers to the regions of the surface and atmosphere of the earth or another planet occupied by living organisms.
Plants are responsible for taking in carbon in nature. When more trees are planted, carbon is absorbed by plants which is a component of the biosphere. Hence planting more trees means increasing the intake of carbon into the biosphere.
Mass of metal = mass of the flask and stopper with metal - mass of the flask and stopper empty
As per the data given:
Mass of the flask and stopper with metal = 144.076 g
Mass of the flask empty: you did not includ this information, but I searched it and found that the mass of the flask and stopper is 33.695 g
Then, the anwser is:
mass of metal = 144.076 g - 33.695 g = 110.381 g