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3 years ago

6

NEED HELP! An experiment _____. must always be done in a laboratory is best done if only one variable is tested for at a time ca

n be done only by direct observation must always be done in the field

1 answer:

hichkok12 [17]3 years ago

6 0

Answer:

Chemically

in chemistry

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slader An experiment is carried out where 13.9 g of solid NaOH is dissolved in 250.0 g of water in a coffee-cup calorimeter. Dis

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Answer:

The mass of the surrounding is $M_t = 263.9 \ g$

Explanation:

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$M_t = 263.9 \ g$

The mass of the surround here is the mass of the coffee-cup calorimeter and this contain the mixture ( water and the NaOH ) so the mass of the surrounding is

$M_t = 263.9 \ g$

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