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devlian [24]
3 years ago
13

Researchers are investigating processed that happen during digestion which answer choice describes only a physical change during

digestion
Chemistry
1 answer:
dolphi86 [110]3 years ago
6 0

Answer:Chewing in the mouth breaks food into smaller pieces

Explanation: all you are doing is breaking down the food in your mouth

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How much Sr(OH)2 • 8 H2O (M = 265.76) is needed to prepare 250.0 ML of solution in which [OH]= 0.100M?
SVEN [57.7K]
Use the formula 
first step: 
Use the formula 
molarity= mole/liter
change ml to l
plug in data
 to get .1=mole/.25 or .1M*.25liter
which =.025 moles
then divide .025 moles by two because there are two OH in Sr(OH)2 
then multiply that by 265.76 (the molar mass of water) 
.0125*265.76
which is 3.32grams this is your answer 




6 0
3 years ago
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2 years ago
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steposvetlana [31]

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