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2 years ago

Which statement is true about the gravity?

Chemistry

1 answer:

REY [17]2 years ago

8 0

Answer:

Explanation:

Gravity acts on all masses equally, even though the effects on both masses.

Hope it helps you! ^^

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Calculate the molality of isoborneol in the product if, a) the melting point of pure camphor is 179°C and the melting point take

tresset_1 [31]

Answer:

The molality of isoborneol in camphor is 0.53 mol/kg.

Explanation:

Melting point of pure camphor= T =179°C

Melting point of sample = $T_f$ = 165°C

Depression in freezing point = $\Delta T_f=?$

$\Delta T_f=T- T_f=179^oC-165^oC=14^oC$

Depression in freezing point is also given by formula:

$\Delta T_f=i\times K_f\times m$

$K_f$ = The freezing point depression constant

m = molality of the sample

i = van't Hoff factor

We have: $K_f$ = 40°C kg/mol

i = 1 ( organic compounds)

$\Delta T_f=14^oC$

$14^oC=1\times 40^oC kg/mol\times m$

$m=\frac{14^oC}{1\times 40^oC kg/mol}=0.35 mol/kg$

The molality of isoborneol in camphor is 0.53 mol/kg.

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3 years ago

Which of these could create static electricity?

Vinil7 [7]

c well actually I remember being tought this but I cant remember it 100

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2 years ago

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What is the relationship between atoms, elements and compounds?

KatRina [158]

Compound is formed when two or more chemical elements are chemically bonded together. elements are made of atoms

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2 years ago

What are three similarities between biotic and abiotic factors?

Viktor [21]

1. Both part of the ecosystem
2. There are biotic objects on abiotic objects ( caterpillars on trees ) and abiotic objects on biotic things ( pollen on bees )
3. Both are made of atoms

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2 years ago

_C4H6O3 + _H2O −−→ _C2H4O2 A) 1, 1, 2 B) 2, 1, 1 C) 2, 1, 2 D) 2, 2, 1

seraphim [82]

Explanation:

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2 years ago