Answer: option 1. different molecular structures and different properties.
Explanation:
1) O₂ and O₃ are different forms of the same element, in the same physical state (gaseous).
2) That is what is called allotropes.
3) The definition of allotropes is different forms of an element with different structures and different properties in the same physical state.
Graphite and diamond is other example of common allotropes.
4) O₃ and O₂ have the same kind of atoms (oxygen), but they are bonded differently (different structure, one molecule has 3 atoms, other 2 atoms) which conferes them different properties (e.g. different odor, different chemical reactivity).
The part I cannot figure out is the question afterwards which is If the calorimeter has a heat capacity of 8.20 J/°C and a correction is included to account for the heat absorbed by the calorimeter what is the heat of reaction q
Answer:
a. qrxn = 831 J
b. 863 J
Explanation:
we know that density is the mass of a substance per unit volume
d=mass/volume
the volume of the solution is the combination of solution A and solution B
1.02 g/mL=mass/(25+25)
mass=50*1.02
mass=51g
Recall that Q=mCdT
mass=m, C=specific heat capacity
dT=change in temperature
qrxn = (51 g)(4.18 J/g⋅°C)(25.3 °C - 21.4 °C)
qrxn = 831 J
2.Heat=Heat capacity *change in temperature
qcal = (8.20 J/°C)((25.3 °C - 21.4 °C)
qcal = 31.98 J
qrxni + qcal = qrxn
qrxn = 831 J + 32.0 J
863 J------Heat of reaction
863 J =(51 g)(Heat Capacity)(25.3 °C - 21.4 °C)
4.34 J/g⋅°C
Answer:
12.58 g/cm³
Explanation:
V = 7×4×1 = 28cm³
ρ = m/V = 352/28 ≈ 12.58 g/cm³
respectively
True
False
Answer:
false
Explanation:
The properties of compounds are often very different from the properties of the elements that make them. For example, water is made from two atoms of hydrogen bonded to one atom of oxygen. ... The elements calcium and chlorine combine to form the compound calcium chloride. Calcium is a soft, silvery metallic solid.
Answer:
the answer is False
Explanation:
False
Hope this helps