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Marta_Voda [28]
3 years ago
14

1.257 m = ___ mmfill in the blank or tell me how to convert it, I never wrote it down

Chemistry
2 answers:
Serga [27]3 years ago
8 0
1 Metre is equal to 1000 milimetres

1.257 m * 1000 mm = 1257 milimetres
tangare [24]3 years ago
4 0
The answer is 1257 hope i helped
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A 51.9 g sample of quartz is put into a calorimeter (see sketch at right) that contains 300.0 g of water. The quartz sample star
Trava [24]

Answer:

The specific heat capacity of quartz is 0.71 J/g°C.

Explanation:

Heat lost by quartz will be equal to heat gained by the water

-Q_1=Q_2

Mass of quartz= m_1=51.9 g

Specific heat capacity of quartz= c_1=?

Initial temperature of the quartz= T_1=97.8^oC

Final temperature = T_2=T  = 19.3^oC

Q_1=m_1c_1\times (T-T_1)

Mass of water=m_2=300.0 g

Specific heat capacity of water= c_2=4.18 J/g^oC

Initial temperature of the water = T_3=17.0 ^oC

Final temperature of water = T_2=T=19.3^oC

Q_2=m_2c_2\times (T-T_3)

-Q_1=Q_2

-(m_1c_1\times (T-T_1))=m_2c_2\times (T-T_3)

On substituting all values:

-(51.9 gc_1\times (19.3^oC-97.8^oC))=300.0 g\times 4.18 J/g^oC\times (19.3^oC-170^oC)

we get:

c_1 =0.7079 J/g^oC\approx 0.71 J/g^oC

The specific heat capacity of quartz is 0.71 J/g°C.

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How does the number of protons compare to the number of<br> electrons in a canton
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