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Naddika [18.5K]
3 years ago
13

What is El Nino and La Nina, and how are they different?

Chemistry
1 answer:
gavmur [86]3 years ago
8 0
El Niño = the boy, La Niña = the girl. You can tell from the ending and the first word.
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Sound travels most quickly through solids because _____. solids have greater frequencies the molecules in solids are very close
uranmaximum [27]
Sound travels most quickly through solids because _____.

answer is: because solids r the most sense.

The distance between molecules in solids r very small.Because they are so close, they can collide very quickly, i.e. it takes less time for a molecule of the solid to 'bump' into its neighbor. Solids are packed together tighter than liquids and gases, hence sound travels fastest in solids.

7 0
3 years ago
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What is the oxidation of KCL?
Assoli18 [71]

Rules:

1) The oxidation number of a monatomic ion equals the charge of the ion.

2)The oxidation number of a Group 1 element in a compound is +1.

3) The oxidation number of a Group 17 element in a binary compound is -1.

4) The sum of the oxidation numbers of all the atoms in a neutral compound is 0.

KCl is an ionic compound. Consists of K+ ions and Cl- ions.

Oxidation of K= +1 (rules 1 and 2)

Oxidation of Cl= -1 (rules 1 and 3)

Rule 4 also applies-  +1 + (-1)= 0- a neutral compound

Hope this helps :)

Explanation:

3 0
3 years ago
A wafer of gold measuring 15 cm x 20 cm has a mass of 600 g. How thick is this wafer in mm ?
Gre4nikov [31]
600,000 mm if im not mistaken.
7 0
3 years ago
Three different sub-atomic particles are described below: Particle X: Uncharged Particle Y: Carries positive charge Particle Z:
bazaltina [42]

 The statement  which is true  about  the three sub atomic particles  is

X is  a neutron,Y is a protons and z is an electron

<u><em>Explanation</em></u>

  •  Atom  has three  sub  atomic    particles,that  is  neutrons,protons and electrons.
  • Neutrons have no electric  charge,protons  are positively  charged while electrons  are  negatively  charged.
  • Both  neutrons and proton are located in the nucleus while electrons  are  located outside the  nucleus.
  • since electrons   are located  outside the  nucleus  they  orbit  around the nucleus.
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3 years ago
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If a bonding pair of electrons is unequally shared between two atoms, the bond is
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The answer is D. And if it is equally shared it is nonpolar covalent bond
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4 years ago
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