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lbvjy [14]
3 years ago
13

The two main states of mechanical energy are

Chemistry
2 answers:
Lisa [10]3 years ago
4 0

Answer:

potential & kinetic

Explanation:

ASHA 777 [7]3 years ago
3 0

Answer: I’m going with C

The two main states of mechanical energy are potential energy and kinetic energy. Potential energy, in terms of mechanical energy,

Explanation:

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The expected value for a chemical equation is 47g of water, after an experiment you find that you have 2.58 moles of water. What
strojnjashka [21]
<h3><u>Answer</u>;</h3>

Actual yield = 46.44 g

<h3><u>Explanation;</u></h3>

1 mole of water = 18 g/mol

Therefore;

The experimental yield = 2.58 moles

equivalent to ; 2.58 × 18 = 46.44 g

The theoretical value is 47 g

Percentage yield = 46.44/47 × 100%

                             = 98.8%

The questions asks for actual yield = 46.44 g

6 0
3 years ago
What are devices that move atomic nuclei at extremely high speed
Temka [501]
The answer is particle accelerators.
7 0
3 years ago
How many core electrons are in a ground state atom of selenium?
Harman [31]
Electrons in an atom can be classified as core electrons and valence electrons. Valence electrons are those electrons which are present in valence shell and participates in bond formation. While, Core electrons are all remaining electrons which are not present in valence shell, hence not take part in bonding.

Atomic number of Selenium (Se) is 34 hence it has 34 electrons with following electronic configuration;

                          1s², 2s², 2p⁶, 3s², 3p⁶, 4s², 3d¹⁰, 4p⁴

From electronic configuration it is found that the valence shell is 4, and the number of electrons present in valence shell are 6. So, 

             Core Electrons  =  Total Electrons - Valence Electrons

             Core Electrons  =  34 - 6

             Core Electrons  =  28

Result:
          There are 28 core electrons in Selenium.
3 0
3 years ago
6547.9 feet to meters<br> Using dimensional analysis
ELEN [110]

Answer:

92.964

Explanation:

8 0
3 years ago
What is the defonishon of a crystalline structure?
pogonyaev
The arrangement in space and the interatomic distances and angles of the atoms in crystals, usually determined by x-ray diffraction measurements
7 0
3 years ago
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