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Ann [662]
3 years ago
9

Someone please help me with this????

Chemistry
1 answer:
tensa zangetsu [6.8K]3 years ago
6 0

Answer:

D po ayan po ang sagot ko salamat po

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the atomic mass of an element is A. the amount of electrons the element has B. the number of neutrons an element has C. the numb
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C. the number of protons and neutrons an element has in its nucleus
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3 years ago
how many calories is in one peanut if the volume of water is 10 mL and the water temperature is rise 4 degrees celsius
liraira [26]

Answer:

40.02 calories

Explanation:

V = 10 mL = 10g

we know t went <em>up</em> by 4°C, this is our ∆t as it is a change.

Formula that ties it together: Q = mc∆t

where,

Q = energy absorbed by water

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Q = (10 g) x (4.186 J/g•°C) x (4°C)

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167.44 J x 1 cal/4.184 J = 40.02 calories

(makes sense as in image it is close to the value).

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blondinia [14]

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7 0
3 years ago
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2 years ago
Which of the following has the greatest mass, in grams? 1 atom of lead (Pb) 0.5 mol silver (Ag) atoms 0.3 mol gold (Au) atoms 25
Strike441 [17]

Answer : Option C) 0.3 mol of Gold.

Explanation : Amongst the options given in the question, 0.3 mol of Au is the greatest in mass in grams.

As 0.3 mol X atomic weight of Au (196.966) = 59.088 grams;

Silver has 0.5 mol X atomic weight of Ag (107.86) = 53.93 grams;

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Therefore, it is clear that Au has the greatest mass amongst the given choices.

8 0
3 years ago
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