Gold is a element. Hope this helps
Answer:
1. KCLO3------>KCL + 3/2O2(g)
2. 122.5g/mol
3. 0.2mol
4. 18.5g
Answer:
3. a) 1 atm,
4. 3 mol/L
Explanation:
3. Solubility 1 : solubility 2 = Pressure 1 : Pressure 2
6.0 g/L : 3.0 g/L = 2.0 atm : x atm
x = 3.0*2.0/ 6.0 = 1 atm
4. Molarity = 15 mol/5 L = 3 mol/L
Answer:
CCl4 is a covalent bonded nonpolar molecule.
Explanation:
Although there is an electronegativity (small) difference between C and Cl, its structure with 4 chlorine atoms allows the polarity to be "canceled out." I have attached a picture of the molecule below where you can clearly see the dipole movement on either side gets canceled hence making it have no net dipole movement. Additionally, CCl4 has a total number of valence electrons to be 32. 7 for one chlorine atom and 4 for a carbon one. The octets are satisfied as well. It's covalent because carbon and chlorine are nonmetals.