3 years ago

How was a first person how made earth

Chemistry

1 answer:

enyata [817]3 years ago

7 0

God made the earth, I dont know the whole story but in genesis it tells you how the earth was made.

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An 85.0 g sample of iron requires 954 J of heat to raise its temperature 25.0°C. What is the specific heat of the iron? \

Zanzabum

Answer:448.9 J/kg °C

Explanation:

See attached photo

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3 years ago

A heat energy of 645 J is applied to a sample of glass with a mass of 28.4 g. Its temperature increases from –11.6 ∞C to 15.5 ∞C

Anika [276]

The heat that is required to raise the temperature of an object is calculated through the equation,
heat = mass x specific heat x (T2 - T1)
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specific heat = heat / (mass x (T2 - T1))
Substituting,
specific heat = 645 J / ((28.4 g)(15.5 - - 11.6))
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3 years ago

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kupik [55]

B
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3 years ago

Which statement is true about molarity and percent by mass? (3 points)

lakkis [162]

Answer: The correct option is, They are different units of concentration.

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