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3 years ago

An interpretation of the results of many tests is called A) an experiment. B) a prediction D) a theory

Chemistry

1 answer:

nydimaria [60]3 years ago

5 0

Answer:

B) a prediction

Explanation:

It is not option A because an experiment is one or more tests to see the check of a phenomenon in certain circumstances.

The idea is to validate or refute a hypothesis.

It is not option C because one theory is based on many proven hypotheses.

The correct option is B, a prediction. It is the principle that will lead us to a theory.

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A sample of hydrogen gas at a pressure of 977 mm Hg and a temperature of 32 °C, occupies a volume of 11.3 liters. If the gas is

IrinaK [193]

Answer : The volume of gas sample will be, 9.93 L

Explanation :

Charles' Law : It states that volume of the gas is directly proportional to the temperature of the gas at constant pressure and number of moles of gas.

Mathematically,

$\frac{V_1}{T_1}=\frac{V_2}{T_2}$

where,

$V_1\text{ and }T_1$ are the initial volume and temperature of the gas.

$V_2\text{ and }T_2$ are the final volume and temperature of the gas.

We are given:

$V_1=11.3L\\T_1=32^oC=(32+273)K=305K\\V_2=?\\T_2=-5^oC=(-5+273)K=268K$

Now put all the given values in above equation, we get:

$\frac{11.3L}{305K}=\frac{V_2}{268K}\\\\V_2=9.93L$

Therefore, the volume of gas sample will be, 9.93 L

6 0

4 years ago

An unbalanced chemical equation for the reaction of boron fluoride with lithium sulfite is shown below. BF3 + Li2SO3 Right arrow

slega [8]

Answer:

2BF3 + 3Li2SO3 → B2(SO3)3 + 6LiF

therefore coefficient is 6

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3 years ago

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What type of reaction is C 12 H 22 O 11> 12C+11H2O

vesna_86 [32]

Answer:

Decomposition Reaction

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3 years ago

Number of atoms in calcium carbonate

lakkis [162]

Answer:

5 Atoms

Explanation

We have one atom of Calcium, One Atom of Carbon and three of Oxygen

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mihalych1998 [28]

Answer:

Females

Explanation:

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