D is the correct answer! YAYYYYYYAA!!
Answer:
1 mol C₃H₈
Explanation:
Step 1: Write the balanced equation for the combustion of C₃H₈
C₃H₈ + 5 O₂ ⇒ 3 CO₂ + 4 H₂O
Step 2: Establish the appropriate molar ratio
According to the balanced equation, the molar ratio of C₃H₈ to CO₂ is 1:3.
Step 3: Calculate the moles of C₃H₈ consumed when 3 moles of CO₂ are produced
We will use the established molar ratio.
3 mol CO₂ × 1 mol C₃H₈/3 mol CO₂ = 1 mol C₃H₈
Answer: Option (3) is the correct answer.
Explanation:
Atomic number of lithium is 3 and atomic number of bromine is 35. So, lithium has one extra electron whereas bromine has deficiency of one electron according to the octet rule.
Thus, when lithium combines with bromine then it results in the formation of ionic bond. That is, bond formed by transfer of electrons is known as ionic bond.
Thus, lithium loses one electron and becomes a positively charged ion.
Answer:
104.352°C
Explanation:
Data Given:
Boiling point of water = 100.0°C
Kb (boiling point constant = 0.512°C/m
Concentration of the Mg₃(PO₄)₂ = 8.5 m
Solution:
Formula Used to find out boiling point
ΔTb = m.Kb . . . . . . (1)
where
ΔTb = boiling point of solution - boiling point of water
So,
we can write equation 1 as under
ΔTb = Tb (Solution) -Tb (water)
As we have to find out boiling point so rearrange the above equation
Tb (Solution) = m.Kb + Tb (water) . . . . . . . (2)
Put values in Equation 2
Tb (Solution) = (8.5 m x 0.512°C/m ) + 100.0°C
Tb (Solution) = 4.352 + 100.0°C
Tb (Solution) = 104.352°C
so the boiling point of Mg₃(PO₄)₂ 8.5 m solution = 104.352°C
Couple of things:
1: only one type of bacteria was discovered metabolising sulphur, this does not necessarily mean that other bacteria, or indeed another organism can also metabolise sulphur. For his theory to be correct, many more and different types of organisms, metabolising sulphur needs to be discovered.
Secondly the use of the word diverse infers that more than just bacteria can metabolise sulphur. Bacteria are unicellular (single-celled) organisms, we therefore cannot say that multicellular organism can also do this, it could be specific to that one type of bacteria.