CHEM 280 LECTURE FINAL MIDTERM EXAM 2024 UPDATED QUESTIONS WITH ANSWERS VERIFIED BY EXPERTS
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CHEM 280 LECTURE
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CHEM 280 LECTURE
CHEM 280 LECTURE FINAL MIDTERM EXAM 2024 UPDATED QUESTIONS WITH ANSWERS VERIFIED BY EXPERTS CHEM 280 LECTURE FINAL MIDTERM EXAM 2024 UPDATED QUESTIONS WITH ANSWERS VERIFIED BY EXPERTS CHEM 280 LECTURE FINAL MIDTERM EXAM 2024 UPDATED QUESTIONS WITH ANSWERS VERIFIED BY EXPERTS CHEM 280 LECTURE FINAL ...
What was 4 purposes of the GENOME PROJECT - CORRECT ANSWER>>>>1. ID
people susceptible to certain diseases
2. develop new drugs
3. new drugs for genetic diseases
4. genetic basis for interlligence
portion of cell with genetic information - CORRECT ANSWER>>>>NUCLEUS
cellulose and glycogen are - CORRECT ANSWER>>>>polysaccharides
If Iodine-131 has a half life of 8 days
How much of a 1000mg sample of I-131
would be left over after 32 days? - CORRECT ANSWER>>>>1000mg /32=31.25
*2=62.50
4 true things about a nuclear power - CORRECT ANSWER>>>>1. generates 20%
electricity
2. generates heat -> boils H2O ->steam->electrons
3. generates no air pollution /greenhouse
4. uses almost no fuel
Define isomers - CORRECT ANSWER>>>>same molecular formula but different
structures
how many isomers exist in alkane C4H10 - CORRECT ANSWER>>>>2
The prefix "but-" means that the base chain contains how many carbon atoms? -
CORRECT ANSWER>>>>4
C3H6 is an akalyne or alkane - CORRECT ANSWER>>>>alkane
which emission has a negative - charge - CORRECT ANSWER>>>>Beta
alpha emission - CORRECT ANSWER>>>>4/2 He
Beta emission - CORRECT ANSWER>>>>0/-1 e
positron emission - CORRECT ANSWER>>>>0/1+ e
what happends to the atomic number of a nucleus that emits a beta - CORRECT
ANSWER>>>>increases by 1
what is the missing particel? : 231 Th 227 Ra
90 --> 88 - CORRECT ANSWER>>>>Alpha emission 4/2 He
what is missing: 231 Th 231 Ae
90 --> 89 - CORRECT ANSWER>>>>positron 0/+1 e
what happens if emission positron takes over the atom - CORRECT
ANSWER>>>>decreases by one
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