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What would the formula be for triselenium heptachloride? 

Using the following unit conversions, how many mix are in 61.5 app?  2 mix = 3 lol 3 oss = 1 nbd 1 lol = 2.45 nbd 1.5 oss = 1 app  

Determine the name of the following compounds:  Ni2S3 [1] MgCl2 [2] CaS [3]

The molecular substance glycerol (C3H8O3) is used in the food and pharmaceutical industries. When a researcher measures out 121.6 g of glycerol how many molecules of glycerol are present?  

An imaginary element candymonium (Cn) has an atomic mass of 32.15 g/mol. If you have 152.1 g of Cn how many moles would you have? 

Element X has 3 naturally occurring isotopes with the following masses and percent abundances: X-99 98.9991 34.5% X-102 101.991 22.60% X-104 103.9898 42.90% What is the average atomic mass of element X? 

A substance has a density of 0.644 g/cm3 what is the density of the substance in mg/in3? (1 in =2.54 cm) 

A scientist is looking into a new element she plans on naming basilium  (Bs) the information of the element is show below, how many grams of basilium would there be if there are 9.191 x 1022 atoms?

What does “Z” represent in the following symbol and how do you know? Z is [z] because [reason]. 

What is the formula for platinum (II) phosphide?