3 years ago

Which component of an item has the least mass

Chemistry

1 answer:

tatiyna3 years ago

3 0

The answer is B; electrons have the smallest mass of the other 2.

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How many grams of 02 are present in 7.49 L of oxygen gas?

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Answer:

10.70grams

Explanation:

Density of a substance = mass/volume

At STP of a gas (standard temperature and pressure), the density of oxygen gas is 1.429 g/L

Hence, according to this question, in 7.49 L of oxygen gas, there would be:

Using D = m/V

1.429 = m/7.49

m = 1.429g/L × 7.49L

m = 10.70g

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Elements are arranged in groups by similar atomic structure on the periodic table. This allows for an element's properties to be

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Match the following descriptions with the correct polysaccharide, note if you answer any part of this question incorrectly a sig

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Answer:

Glycogen. Cellulose. Amylose. Cellulose. Amylopetin and Glycogen. Amylopetin and Cellulose.

Explanation:

Glycogen is the form that glucose is stored in human body.

Cellulose is the structural part of plant cell walls and human cannot digest it.

Amylose is the polysaccharide linked mainly by the the bonds of $\alpha$ 1,4 glycosidic.

Cellulose is an unbranched polysaccharide linked mainly by the bonds of $\beta$ 1,4 glycosidic.

Amylopetin and Glycogen are branched polysaccharides linked by the bonds of $\alpha$ 1,4 glycosidic and $\alpha$ 1,6 glycosidic.

Amylopetin and Cellulose are mainly stored in plants.

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3 years ago

When an erythrocyte is removed from circulation the iron ion of hemoglobin?

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US<br> What is the percent of H in<br> NH3?<br> (H = 1.008 amu, N = 14.01 amu)<br> [?]%

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Answer:

17.6

Explanation:

Answer is explained above

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3 years ago

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