Answer: Im not sure but i think its B
Explanation: Its hard to explain so im
not gonna do it
Answer:
That periodic trends are specific patterns that are present in the periodic table that illustrate different aspects of a certain element, including its size and its electronic properties.
Explanation:
The statement about
“Crystalline solids do not have a sharp melting point” is false. Crystalline
solids are solids that have particles arranged in a regular, repeating
patterns. They are held together by uniform intermolecular forces. The faces
intersect at a specific angle that identifies that substance. They have
distinctive internal structures that in turn lead to distinctive flat surfaces.
These flat surfaces give a short rage order. When exposed to x – ray
diffractometers, they exhibit a distinctive pattern used to identify the
material. They give the same face when you turn a crystalline solid around
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Answer:
See explanation
Explanation:
The equation of the reaction is;
C3H8 + 5O2 ----> 3CO2 + 4H2O
Number of moles of C3H8 = 132.33g/44g/mol = 3 moles
1 mole of C3H8 yields 3 moles of CO2
3 moles of C3H8 yields 3 × 3/1 = 9 moles of CO2
Number of moles of oxygen = 384.00 g/32 g/mol = 12 moles
5 moles of oxygen yields 3 moles of CO2
12 moles of oxygen yields 12 × 3/5 = 7.2 moles of CO2
Hence C3H8 is the limiting reactant.
Mass of CO2 produced = 9 moles of CO2 × 44 g/mol = 396 g of CO2
1 moles of C3H8 yields 4 moles of water
3 moles of C3H8 yields 3 × 4/1 = 12 moles of water
Mass of water = 12 moles of water × 18 g/mol = 216 g of water
b) Actual yield = 269.34 g
Theoretical yield = 396 g
% yield = actual yield/theoretical yield × 100/1
% yield = 269.34 g /396 g × 100
% yield = 68%
Answer:
12
Explanation:
alkyne formula is CnH2n-2
heptyne = 7
