If a bucket had a volume of 8.00 qt. and was full of gold whose density is 19.3 g/cm³, how many moles of gold where in the bucket?

They carry out the exchange of gases as we breathe ( oxygen and carbon dioxide).

the catch is that the top numbers are atomic masses the bottom numbers are the numbers of protons and electrons in an uncharged atom. they are the number of that atoms as you would find them on the periodic table. further, the numbers on the left are used to determine the missing numbers on the right

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

What are the options? physical property can be color, smell, opacity, viscosity, density, infra red spectrum, melting and boiling points, attraction and repulson to magnets, etc.

Adialysis unit requires 78.5 l of water.the estimated digit is 5.