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pshichka [43]
3 years ago
6

Which option is an example of a physical property?

Chemistry
1 answer:
KatRina [158]3 years ago
3 0

Answer:

The answer is freezing point . Freezing point is a physical property of an atom

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What is electronic configuration? What is the Law of Constant Composition?
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The law of constant proportions states that chemical compounds are made up of elements that are present in a fixed ratio by mass. This implies that any pure sample of a compound, no matter the source, will always consist of the same elements that are present in the same ratio by mass.

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Stems are important plant structures because they _________.
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c

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A patients blood is tested for growth hormone which has a molecular mass of 848.952g/mol. The test results show a normal concent
rusak2 [61]

Answer:

\boxed{4.7\times 10^{-9}}

Explanation:

Data:

MM = 848.952 g/mol  

   c = 4.0 x 10⁻⁶ g/L

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Calculations:

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\text{Mass} = \text{1 L} \times \dfrac{4.0 \times 10^{-6} \text{ g}}{\text{1 L}} = 4.0 \times 10^{-6} \text{ g}

(b) Moles of growth hormone

\text{Moles} = 4.0 \times 10^{-6} \text{ g} \times \dfrac{\text{1 mol}}{\text{848.952 g}} = 4.7\times 10^{-9}\text{ mol}\\\\\text{There are $\boxed{\mathbf{4.7\times 10^{-9}}\textbf{ mol}}$ of growth hormone in 1 L of blood.}

8 0
3 years ago
A _____ is an experimental set-up that can be used to measure the heat of a chemical reaction or a physical change and determine
Eduardwww [97]

Answer:Calorimetry

Explanation: In this case, an instrument called Calorimeter is used to measure the amount of heat being transferred

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