Help me pleaseee C3H8 (g) + 5 O2 (g)
->
3 CO2 (g) + 4 H2O (9)

1. Use stoichiometry to determine how many moles of O2 are needed
to completely react with 2.25 moles of C3H8.

11.25 moles of will be required to completely react with 2.25 moles of .

Explanation:

The balanced chemical equation is:

According to stoichiometry :

1 mole of require = 5 moles of

Thus 2.25 moles of will require=  of  

Thus 11.25 moles of will be required to completely react with 2.25 moles of .

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.