An uninflated balloon full of air has a volume of 300.0 mL and contains 0.0240 mole of air. A 2.00 g piece of dry ice (solid CO2) is placed in the vessel and sealed. What is the volume of the balloon after the dry ice has vaporized? Assume constant temperature and pressure. Also, assume no change in the initial amount of air.

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.

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer

50.23 i believe is correct but don't quote me on that.