Regulation basketball hoops are 46 cm in diameter. Use this scale drawing of a regulation hoop and a regulation basketball to
determine the diameter of a real basketball.
How much smaller is this drawing than a real basketball and hoop?
To find out, you will need to determine what each centimeter in the
drawing is equal to in reality. This number is the scaling factor.

help me please!!!

output?

explanation:

it's c. elements are placed in rows based on how may valencies electrons have.

c-14 is carbon-14, or radiocarbon.   it is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.

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