8)__MgCl2 +
Li2CO3 →
_MgCO3 +
LiCl Reaction Type:_
TT

Reaction type : Double-Replacement reactions

Given

Reaction

MgCl2 + Li2CO3 → MgCO3 + LiCl

Required

Balanced equation

Reaction type

Solution

Balanced equation

Li2CO3 (s) + MgCl2 (aq) → MgCO3 (s) + 2 LiCl (aq)

Double-Replacement reactions. Happens if there is an ion exchange between two ion compounds in the reactant to form two new ion compounds in the product  

To predict whether this reaction can occur or not is one of them, the precipitation reaction.

MgCO3 is a precipitation compound

a: 45.9 meters

b: 4.29 seconds

step-by-step explanation:

a: h(t)=1/2(-9.8)(3)^2+0(3)+90

h(t)=-4.9(3)^2+90

h(t)=-44.1+90

h(t)=45.9 meters

b: 0=1/2(-9.8)(t^2)+0t+90

0=-4.9t^2+90

-90=-4.9t^2

18.37=t^2

t=4.29 seconds

in the second question, the numbers aren't exact, but they're a close approximation.

yes

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