Calculate moles of zn(no3)2 in 143.50g of this substance

According to the vsepr theory what is the shape of a molecule that has a central atom valence three other items with no lone pairs of electrons

Gwhich r group would most likely be found in a hydrophobic area of the tertiary structure of a globular protein? which r group would most likely be found in a hydrophobic area of the tertiary structure of a globular protein? −ch2−oh −ch2−o||c−nh2 −ch2−coo− −ch2−ch2−ch2−ch2−n+h3

Which are forms of frozen water? check all that apply. dew frost hail rain sleet