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sweet [91]
3 years ago
10

Is it always possible to identify something as an element compound pure substance or mixture

Chemistry
1 answer:
weqwewe [10]3 years ago
7 0
Is it always possible to identify something as an element<span>, </span>compound<span>, </span>pure substance or mixture<span> just by looking at it? </span>
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How many grams of aluminum are required to give a total dislocation length of 3,000 miles (enough to stretch from New York City
Luba_88 [7]

Answer:

0.13 g

Explanation:

mass of aluminum required = ( Dislocation length) / ( Dislocation density) × (density of metal)

3000 miles to cm (  1 mile = 160934 cm) = 3000 miles ×  160934 cm / 1 mile = 482802000 cm

density of Aluminium = 2.7 g /cm³

dislocation density of aluminum = 10¹⁰ cm³

mass of aluminum required = (482802000 cm × 2.7 g/cm³) / 10¹⁰ cm³ = 0.13 g

5 0
3 years ago
What is the molecular weight mass for KOH
lubasha [3.4K]
The weight is 56.1056 g/Mol hoped this helped
5 0
3 years ago
What kind of properties can only be observed when a substance changes into a different substance?
Shkiper50 [21]
<h3>Answer:</h3><h2>Chemical properties</h2><h3>Explanation:</h3>

By its very definition, a chemical property is one which is exhibited as a result of a chemical reaction. This may happen during or after the reaction. This is because in a chemical reaction there is a transformation in the physical composition of the components and this directly affects its chemical properties.

4 0
3 years ago
A similar chemical analysis is performed on a 200.0g sample of the sugar found in corn
Stells [14]

Answer:

40%

Explanation:

Calculate the percent of the mass that is carbon:

\% mass = \frac{80}{200} \times 100 = 40\%

7 0
3 years ago
Help please if its right i'll give brainiest
Mkey [24]
I believe it is spontaneous generation
5 0
3 years ago
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