Match the definition with the correct term Column A
1.
The figure AFTER a transformation has occurred.:
The figure AFTER a transformation has occurred.
2.
The fixed point in the plane about which all points are expanded or contracted.:
The fixed point in the plane about which all points are expanded or contracted.
3.
The figure BEFORE a transformation has occurred.:
The figure BEFORE a transformation has occurred.
4.
Algebraic representation of a dilation:
Algebraic representation of a dilation
Column B
a. Center of Dilation
b. Pre-Image
c. Image
d. (x. y) to (kx, ky)

120,630,890

step-by-step explanation:

110+10=120,620+10=630,880+10=890

answer : third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol

explanation :

let us write down the given equations

equation 1 :

equation 2 :

equation 3 :

let us use hess's law to find out which 2 equations can be added to get the third equation.

let us reverse equation 2 and multiply it by 2. the new equation that we get is,

equation 4 :

let us add equation 1 & 4

the above equation is similar to equation 3 but has different value for dhrxn.

therefore third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol