Answer:
B: 2 mol NaOH/2 mol H2O
Explanation:
The reaction equation is;
H2SO4 + 2NaOH = Na2SO4 + 2H20
Now, to know how many moles of NaOH will be produced for 10.5 grams of water (H2O) used, and since the molar mass of H2O is 18.02 g/mol and number of moles attached to H2O and NaOH in the reaction are both 2 we will have;
10.5g H2O × 1 mol H2O/18.02 g H2O × 2 mol NaOH/2 mol H2O
Thus correct answer is option B
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:
why cant you just say the grasshopper eats the marsh grass the shrew eats the grasshopper and the hawk eats the shrew.
Explanation:
this makes sense to me but im not sure.
Answer:
no it would be 2.5 mill your welcome
Explanation: