Answer:
CnH2n+2 is the general formula for paraffins, also known as alkanes, which are saturated compounds with the general formula CnH2n+2, where n is the number of carbon atoms in the molecule. Methane (CH4), often known as C1, is the most basic of the alkanes and has the simplest structure. Normal paraffins (also known as n-paraffins or n-alkanes) are straight-chain molecules with no branches.
Explanation:
Alkanes are referred to as paraffins because they have a low affinity for a general reagent when heated. Alkanes, on the other hand, are non-reactive chemicals. When exposed to extreme circumstances, they have responses.
Answer:
D) Endothermic
Explanation:
An endothermic reaction absorbs heat. In this case, the wax absorbs the heat and it melts.
Also, I took the exam and I got it right.
From Ohm's law, we get the general equation that would relate the voltage, current, and resistance,
V = I x R
where V is voltage, R is resistance, and I is current. Deriving the equation for R
R = V / I
R = (1.5 volts) / (0.7 amps) = 2.14 Ohms
Answer:
The correct answer is The equilibrium constant for this reaction changes as the pH changes.
Explanation:
The equilibrium constant of a reaction depends of pH and viceverca.There is a equation that link pH with equilibrium constant Ka(for assumption).The equation is given below,
pH=pKa+log[A-/HA]
where[A-] is the concentration of conjugate base and [HA] is the concentration of conjugate acid.
<span>The lattice structure in a metal is weaker than the lattice structure of an ionic compound. This is because the metals have free electrons which can freely move around while ionic compounds are strongly bonded. Hope this answers the question.</span>