2 years ago

The positvie part of the atom found in the center of the atom

Chemistry

2 answers:

vladimir2022 [97]2 years ago

6 0

That would be protons ! They are positive

valentinak56 [21]2 years ago

4 0

Answer:

True, it's called Proton

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A student determined the heat of fusion of water to be 88 calories per gram if the accepted value is 80 calories per gram, what

zimovet [89]

The answer is 10%

The percent error is used to determine the precision of calculations. It can be expressed as:
$e = \frac{v-v_{1} }{v_1} *100$
where:
e - the percent error,
v - experimental value (measured value),
v₁ - theoretical value,

It is given:
e = ?
v = 88 calories
v₁ = 80 calories

Thus, the percent error is:
$e = \frac{88-80}{80}*100 = \frac{8}{80}*100=0.1*100=10%$

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3 years ago

The temperature of 100 grams of water changes from 16°C to 20°C. What is the total number of calories of heat energy absorbed by

ser-zykov [4K]

Answer:

D. 400 cal

Explanation:

Spec heat of water 1 cal/gm-C

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2 years ago

QUESTION: