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Dovator [93]
3 years ago
11

What will happen to a lighted candle that is covered by a glass jar.

Chemistry
2 answers:
Andrej [43]3 years ago
5 0

it will turn off/blow off by itself : )

Troyanec [42]3 years ago
4 0
A lit candle needs to draw oxygen from the air in order to continue burning. ... Thus, oxygen inside the glass jar will decrease and it gets filled with carbon dioxide, and eventually the candle's flame will Extinguish.
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What is the number of electrons shared between the atoms in I2 molecule (That is an i not a 1)
labwork [276]
Iodine is one of seven elements that usually form as diatomic molecules. These other "diatomics" are O_2, H_2, F_2, Br_2, N_2, and Cl_2. They typically bond to themselves.

Iodine has seven valence electrons. Using valence shell electron pair repulsion (VSEPR) theory, we can predict the Lewis dot structure for I_2. We see there are fourteen electrons, and we can make a covalent bond, leaving three lone pairs on each atom. The bond replaces two electrons, so the number of electrons shared is two.

4 0
3 years ago
Explain how you would expect the strength of
LekaFEV [45]

Answer:

  • <u><em>You should expect that the ionic bond in LiBr is stronger than the bond in KBr.</em></u>

<u><em /></u>

Explanation:

The<em> ionic bonds</em> are formed by the electrostatic attraction between the ions, cations and anions.

In KBr the cation is K⁺ and the anion is Br⁻.

In LiBr the cation is Li⁺ and the anion is Br⁻.

You must expect that the bond strength depends mainly on the charges present on each ion and the distance between them.

Nevertheless, the effect of the distance between the radius dominate the trendency of the bond strength, which makes that the ionic strength trend be related to the ionic radius trend.

Lithium is a smaller ion than Potassium (both are in the same group and Lithium is above Potassium).

Thus, you should expect that the Li ion is closer to the Br ion than what the K ion is to the Br ion and expect that the bond between a Li ion and the Br ion be stronger than the bond between the K ion and the Br ion.

6 0
3 years ago
Number of atoms in calcium carbonate
lakkis [162]

Answer:

5 Atoms

Explanation

We have one atom of Calcium, One Atom of Carbon and three of Oxygen

3 0
3 years ago
A titration process is done by using 0.2M of 20 ml of third analytical group main reagent solution with 0.1 M nitric acid soluti
Pavel [41]

Sulfuric acid undergoes dissociation reaction to produce twice the amount

of hydrogen ions produced by nitric acid in solution.

  • The volume of sulfuric acid equals; <u>Half the volume of nitric acid</u>

Reasons:

The concentration of the analytical group = 0.2 M

Volume of reagent = 20 ml

Concentration of the nitric acid to be replaced = 0.1 M

Replacement for the nitric acid = Sulfuric acid

Concentration of the sulfuric acid = Concentration of the nitric acid = 0.1 M

Reaction = Titration

Solution:

Sulfuric acid in solution gives; H₂SO₄ (aq)  ⇄ 2H⁺ (aq) + SO₄²⁻(aq)

For nitric acid, we have; HNO₃ (aq) ⇄ H⁺(aq) + NO₃⁻(aq)

Therefore;

1 mole of sulfuric acid gives 2 moles of hydrogen ions

0.1 M solution of sulfuric acid gives 0.2 moles of hydrogen ions per liter

0.1 moles of hydrogen ions are therefore present in half a liter solution of 0.1 M sulfuric acid solution.

However;

0.1 M of nitric acid gives 0.1 moles of hydrogen ions per liter

Therefore;

  • The volume of sulfuric acid required = <u>Half the volume of nitric acid</u>

Learn more about titration and quantitative chemical analysis here:

brainly.com/question/6800262

brainly.com/question/6548806

brainly.com/question/13031875

8 0
2 years ago
PLEASE HELP!!
Andrei [34K]

Answer:

1. FeSO4+2NaOH→Na2SO4+Fe(OH)2

2. Fe(NO3)3+3NaOH→Fe(OH)3+3NaNO3

3. 382 g NaNO3

Explanation:

1. This is a double displacement reaction so perform exchanges with specimens and balance accordingly.

2. This is a double displacement reaction so perform exchanges with specimens and balance accordingly.

3. Start with 1.5 mol of Fe(NO3)3 then include mole to mole ratio of NaNO3 to Fe(NO3)3 then multiply by molar mass of Fe(NO3)3.

8 0
3 years ago
Read 2 more answers
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