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Vesnalui [34]
3 years ago
15

I AM GIVING AWAY 80 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Chemistry
2 answers:
dangina [55]3 years ago
6 0

Answer:

thank you so much!!!!!!!!!!!!

egoroff_w [7]3 years ago
6 0

Answer:

HIII I REALY NEED HELP WITH SOME HISTORY QUESTIONS

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A sample of salt (sodium chloride) is placed on the tip of a platinum wire. When the sample is heated on blue flame the flame tu
gulaghasi [49]
So platinum is a transition metal. In general transition metals are reducers, which means they can give the electrons they have, to the sodium atoms. Also in chemistry we look at sub orbitals rather that shells(2,8,8). So due to the energy from heat, the d orbital split as electrons move to a higher energy level. Some of the electrons are given to the sodium ions and therefore the flame changes colour to yellow. 
The excitation of the electrons is caused by them getting energy and so moving up an energy level. This energy is released and the electron returns to it's original state. The energy released, however, does not release in the same direction, but in different/various directions. Therefore the colour of the light changes as some energy is released in the surrounding.
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3 years ago
What would you use to measure the height of a sample?
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What happens to<br> carbon dioxide?
Molodets [167]
Moves from the atmosphere to the oceans
3 0
2 years ago
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PLS HELP what is 2x10^3 in long form
saul85 [17]

Answer:

2x1000 = 2000

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10^3 = 10×10×10 = 1000

exponent , the ^3 means multiply the number by itself 3 times, if it was ^4, it would be 4 times and so forth.

another trick for 10s is just put the 1 and the exponents number of 0's after the 1. so in this case, put three 0's: 1,000

6 0
3 years ago
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Which of the following is one part of a chemical formula for a molecule?
solniwko [45]

D

Explanation:

An example is a chemical formula of a compound NH₄NO₃

These subscript numbers mean that there four (4) hydrogen atoms and three (3) oxygen atoms in the molecules.

A Lewis dot diagram for the molecule is used to show the electrons of the atoms, and their interactions – such as in covalent bonding- in the molecule

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