Answer:
427.5g
Explanation:
Given parameters:
Number of moles = 4.5moles
Unknown:
Mass of MgCl₂ = ?
Solution:
To solve this problem;
Mass = number of moles x molar mass
Molar mass of MgCl₂ = 24 + 2(35.5) = 95g/mol
Mass = 4.5 x 95 = 427.5g
So let’s say someone asks you what what element has an atomic mass of 190.23 in period 6 so it would be Osmium and the metals are Alkali Alkaline Earth Other metals transition metals inner transition metals lanthanoids actinides rare earth elements metalloids semimetals nonmetals halogens noble gases newly recognized elements those are how the elements are sorted the atomic number is how high or low something is like 43 61 84 through 118 is radioactive and atomic symbols like Pb stands for lead or Cr stands for Chromium so you should know how to use some parts of the periodic table this is all I know if you already knew this then I’m sorry
Answer:
KOH(aq) + HCI(aq) -----> KCI(aq )+ H2O
base acid salt water
hope this helps :)
Explanation:
Answer: you didn't add much information, but I think it's: in order for a sedimentary rock to be created, the rock must first become sediment.
Explanation: sediment is basically small pieces of rock that have been eroded from their parent rock; and with immense heat and pressure, those pieces will form a sedimentary rock.
Answer:
The answer is C. Gas particles have no attractive forces between them.
Explanation: