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lions [1.4K]
3 years ago
12

HELP!!!!!! PLEASE!!!

Chemistry
1 answer:
mixas84 [53]3 years ago
7 0

Answer:

C

Explanation:

sorry if im wrong!!

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10.How do you make sure there is no cross contamination of your samples of<br> substances?
alexgriva [62]
Have a clean workspace, always wear clean gloves, never reuse or leave Lab wearing gloves, sanitize!
6 0
3 years ago
4. If 175 undecayed nuclei remain from a sample of 2800 nuclei, how many half-
Irina18 [472]

Answer:

X = 4

Explanation:

Start 2800

End 175

175 = 2800x(0.5)^X

175/2800 = 0.5^X

0.0625 = 0.5^X

log(0.5 x) = log(0.0625)

x · log(0.5) = log(0.0625)

-0.301x = -1.204

x = -1.204/-0.301

x = 4

8 0
3 years ago
Lipids and carbohydrates are composed of the same elements: carbon, hydrogen, and oxygen. how do lipids and carbohydrates differ
Vanyuwa [196]
The following choices..:
A. Lipids have more hydrogen relative to oxygen than do carbohydrates. 
B. Lipids and carbohydrates have different functions.
C. Lipids don't dissolve easily in water, while carbohydrates do.
D. Lipids do not chain together to form larger molecules, while carbohydrates do.
E. All of the above are correct


The answer would be E, all of the above
7 0
3 years ago
What would cause the percent yield of a reaction to be less than 100%?
Roman55 [17]

<u>Answer:</u>

All of the limiting reagent gets used up causes the percent yield of a reaction to be less than 100%

<u>Explanation:</u>

It is rare for a chemical reaction to occur with the right proportion of reactants that reacts together to form resultant products.During this process, one of the reactants gets used up faster resulting in the lower percent yield. Such product that gets used up faster is called limiting reagent. This limiting reagent is responsible for lowering the percentage yield in the chemical reaction.

The limiting reactant can be found easily by calculating the yield of each reactant assuming they are consumed completely. The reactant which has least yield is the limiting reactant of the reaction.

3 0
3 years ago
FREE BRAINLEIAST FOR FIRST GOGOGOGO!!
olga2289 [7]

Answer:

MEMEME

Explanation:

6 0
3 years ago
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