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Free_Kalibri [48]
3 years ago
7

The weight of a cup filled with water is 2.58kg The weight of the empty cup is 1.5 kg. Considering significant figures what is w

eight of the water
Chemistry
1 answer:
Finger [1]3 years ago
6 0

Explanation:

ja, you have to be to work i

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Lunna [17]

d, one atom of oxygen and two atoms of hydrogen

6 0
3 years ago
In the naturally occurring D series of ketoses, the carbonyl group is found on carbon number ___________, whereas in aldoses, th
Elena-2011 [213]

Answer:

second carbon atom from the  end

end carbon atom

Explanation:

Carbohydrates are naturally occurring organic compounds containing carbon, hydrogen and oxygen. The general molecular formula of Carbohydrates is C_x(H_2O)_y.

Carbohydrates can be classified based on structures,

Carbohydrates with the structure of alkanals (-CHO) are known as aldose while those of the structure of alkanones (C=O) are known as ketose.

In stereochemistry , D series is a kind of configurational arrangement where the hydroxyl group attaches itself to the right hand side.

Thus; in naturally occurring D series of ketoses, the carbonyl group is found on carbon number <u>second carbon atom from the  end </u>whereas in aldoses, the carbonyl group is found on carbon number <u> end carbon atom.</u>

7 0
3 years ago
In the periodic table, how are elements in the same group related to each other? A. They have the same atomic mass. B. They have
Irina-Kira [14]
Elements in the same group tend to have very similar properties (D). This is due to the number of valence electrons each group has.
3 0
3 years ago
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Snap me r.alivia05 also no creepy old men, just nice females
AnnyKZ [126]

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this is hella sus

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3 years ago
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The diagram below is an artist’s impression of a single atom of element Be. The neutrons are shown with stripes, the protons are
Ahat [919]

Answer is: beryllium-10.

The diagram shows that atom has 4 protons, 5 neutrons and 2 valence electrons.

Atomic number is the number of protons, which is characteristic of a chemical element, beryllium (Be) is an element with atomic number 4.

Two valence electrons means that atom is from 2. group of periodic table, only beryllium is from that group; sodium (1. group), boron (13. group) and carbon (14. group).

Beryllium-10 has 6 neutrons, so it is isotope (different number of neutrons or mass number).

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3 years ago
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