Answer:
50 mol CH₄
Explanation:
The question is incomplete so I looked it up online.
<em>How many moles CH₄, are needed to produce 50 moles of CO₂?</em>
Step 1: Write the balanced equation for the complete combustion of methane
CH₄ + 2 O₂ ⇒ CO₂ + 2 H₂O
Step 2: Establish the appropriate molar ratio
According to the balanced equation, the molar ratio of CH₄ to CO₂ is 1:1.
Step 3: Calculate the number of moles of CH₄ needed to produce 50 moles of CO₂
We will use the previously established molar ratio.
50 mol CO₂ × 1 mol CH₄/1 mol CO₂ = 50 mol CH₄
Answer:
B. Green solution density is 1.06 g/ml and blue solution density is 1.20 g/ml
Explanation:
Density is given as,
D = Mass / Volume
Red Solution,
D = 25 g / 25 mL
D = 1 g/mL
Green Solution,
D = 26.5 g / 25 mL
D = 1.06 g/mL
Yellow Solution,
D = 28.2 g / 25 mL
D = 1.128 g/mL
Blue Solution,
D = 30 g / 25 mL
D = 1.20 g/mL
Answer:
B.)
Explanation:
An Aquifer is an underground formation containing groundwater
Answer: The statement molecule 
cannot be accurately described by a Lewis structure consistent with the octet rule, is true.
Explanation:
As the chemical formula of water is 
and since it contains electronegative oxygen atom which also has 2 lone pair of electrons. Hence, lone pair-bond pair repulsion occurs due to which water has a bent shape structure.
The compound LiF contains metal lithium and non-metal fluorine. In order to obtain stability lithium donates its valence electron to the fluorine atom leading to the formation of an ionic bond. Hence, LiF is an ionic compound and not a covalent compound.
Generally, ionic compounds are polar in nature. For example, KOH is a polar compound and 
is a non-polar compound.
Thus, we can conclude that the statement molecule cannot be accurately described by a Lewis structure consistent with the octet rule, is true.
