Consider the irreversible reaction A + 2 B → 3 C .
Which of the following correctly expresses
the rate of change of [B] ?
1.
∆[B]
∆t
= −2 (rate of rxn)
2.
∆[B]
∆t
= −
1
2
(rate of rxn)
3.
∆[B]
∆t
= −(rate of rxn)
4.
∆[B]
∆t
= +
1
2
(rate of rxn)
5.
∆[B]
∆t
= +(rate of rxn)
6.
∆[B]
∆t
= +2 (rate of rxn)

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.

no, the red giant is the hottest with 2.00.000.000 degrees celsius. while the white dwarf only 25,000 degrees celsius.

the answer is 0.8m.

by: nicholas