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xeze [42]
4 years ago
15

The density of water is ____________________.

Chemistry
2 answers:
kotegsom [21]4 years ago
8 0
It's density is 1g/cm3
8_murik_8 [283]4 years ago
5 0
The density of salt water depends on the dissolved salt content as well as the temperature
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In which process is glucose oxidized to form two molecules of pyruvate?
ad-work [718]
That should be glycolysis
8 0
3 years ago
An electric kettle draws a current of 6.50 A while it is plugged into a 120-V
Umnica [9.8K]

Answer:

780 watts

Explanation:

formula to find power when given amps and voltage

P = A x V

=6.50a x 120V

= 780 W (watts)

7 0
3 years ago
What is the difference between valence and valency
zhuklara [117]

Answer:Valence electrons are the number of electrons in the outermost energy level of an atom.

Valency is the number of electrons an atom needs to gain or lose in order to have a full outermost energy level.

Explanation:

4 0
3 years ago
The following ions contain the same number of electrons. Rank them in order of decreasing ionic radii. Rank from largest to smal
bonufazy [111]

Answer:

P^3-  >  S^2-  >  Cl^- > K^+ >  Sc^3+

Explanation:

Ionic radii is an example of physical properties of Periodicity.

The size of an atom's ion is difficult to estimate because of the electronic distribution and arrangement. This is due to the fact that the atom' ion have no definite outer boundary. In order to circumvent this problem, the atom's ion is estimated in a crystal lattice in terms of its ionic radii.

Ionic radii is taken as half the distance between atomic ions in a crystal lattice. Across a period in the periodic table , ionic radii decreases progressively from left to right.

Down the group, the ionic radius increases from top to bottom.

So the arrangement of the given elements from largest to smallest radius in the decreasing order of ionic radius will be:

P^3-  >  S^2-  >  Cl^- > K^+ >  Sc^3+

5 0
3 years ago
Which of the following represents the ground state electron configuration for the Mn3+ ion? (Atomic number Mn = 25) 1s2 2s22p6 3
V125BC [204]

Answer:

1s^22s^22p^63s^23p^63d^{4}

Explanation:

Manganese is the element of group 7 and forth period. The atomic number of Manganese is 25 and the symbol of the element is Mn.

The electronic configuration of the element, manganese is -  

1s^22s^22p^63s^23p^63d^{5}4s^2

To form Mn^{3+}, it will lose 3 electrons from the valence electrons and thus the configuration of the ion is:-

1s^22s^22p^63s^23p^63d^{4}

8 0
3 years ago
Read 2 more answers
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