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LUCKY_DIMON [66]
3 years ago
15

Josie observed that when water is boiled in an open beaker it completely disappears, leaving the beaker dry. What can Josie conc

lude?
Chemistry
1 answer:
-BARSIC- [3]3 years ago
6 0
That when water is boiled in a open beaker and it disappears that it evaporates into the air
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What is the ratio between the mass of nitrogen and oxygen in N2O3?
Ket [755]

Answer:

12:7

Explanation:

To Determine: To calculate the formula of the unknown binary compound of oxygen and nitrogen and to ratio in the next compound of the series using given data.Answer:The formula of the unknown compound .The ratio for atoms of oxygen to nitrogen inis .The mass ratio of oxygen to nitrogen in next member of the series of compounds is .Explanation:The mass ratio of toinis .The mass ratio of toin theunknown compound is .The atomic mass of the oxygen is .The atomic mass of the nitrogen is .The mass ratio of to in a molecule can be represented as: …… (1)Here,is the number of atoms of the oxygen in the molecule.is the mass of an atom of oxygen.is the number of atoms of the nitrogen in the molecule.is the mass of an atom of nitrogen.For unknown compound, substitutefor , for and for mass ratio in equation (1).The ratio of atoms of oxygen to nitrogen is , therefore, the expected formulas of the unknown compound is and . If the unknown compound is in a series with then the formula of the unknown compound and the formula for the next member of the series is .The ratio for atoms of oxygen to nitrogen inis .For , substitute 5 for , for , 2 for and for in equation (1).The mass ratio of oxygen to nitrogen in next member of the series of the compounds is .

6 0
3 years ago
The only bonds in a formula unit of CaF2 are __________. nonpolar covalent polar covalent ionic metallic
adell [148]

Answer:

ionic

Explanation:

Ionic bonds exist between Ca and F ions in CaF₂. Ionic bonds are interatomic bonds formed by the transfer of electrons from one atom to the other.

The donor atom here is Ca and it has two valence electrons. Fluorine is the receiving atom with 7 electrons in its outermost shell.

Ca would give one each of its two outermost electrons to the fluorine atoms to complete their octet. Ca ion would now resemble Argon and the flourine atoms would look more like Neon atoms.

This is an ionic bond

7 0
3 years ago
Which of these pairs of elements is most likely to be part of a polyatomic ion?
Mrrafil [7]
S and O would be on a polyatomic ion as I know of
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Air moves when the molecules are free meaning they aren't close up to each other or trying to fill up space, they are moving freely. 
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3 years ago
In thrust faulting:
Nezavi [6.7K]

Thrust faulting:

type of reverse fault that has a dip of 45 degrees or less. If the angle of the fault plane is lower (often less than 15 degrees from the horizontal)

I hope this helps

8 0
3 years ago
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