At its triple point, water can

Chemistry

2 answers:

Strike441 [17]3 years ago

7 0

A, It can have many forms depending on temperature and the molecules bonding with the hydrogen

garik1379 [7]3 years ago

4 0

A exist in equilibrium in three different phases

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Based on the bond angles in CH4, NH3, and H2O, rank the magnitude of these repulsions. Rank from strongest to weakest repulsion.

morpeh [17]

Answer:

H2O> NH3> CH4

Explanation:

According to valence shell electron pair repulsion theory (VSEPR), bond angles and repulsion of electron pairs depends on the nature of electron pairs on the central atom of the molecule. Lone pairs cause more repulsion (and distortion of bond angles) than bond pairs). Lone pair- lone pair repulsion is greater than lone pair bond pair repulsion.

Water contains two lone pairs on oxygen hence it experiences the greatest repulsion. Ammonia has only one lone pair on nitrogen hence there is lesser repulsion between lone pairs and bond pairs. Methane possess only bond pairs of electrons hence it has the least repulsion.

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3 years ago

In mutualism _____.

yawa3891 [41]

Answer:

3'' one is correct answer

Explanation:

in mutualism, organisms of different species benefit from cooperation

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Which electron configuration is magnetic, paired or unpaired electrons

NISA [10]

Answer:

paired electrons is magnetic configuration

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2 years ago

What is the theoretical yield of oxygen when 29.2 g of water are decomposed by electrolysis according to the balanced equation:

Zinaida [17]

Taking into account the reaction stoichiometry, the theoretical yield of oxygen when 29.2 g of water are decomposed by electrolysis is 25.956 grams.

<h3>Reaction stoichiometry</h3>

In first place, the balanced reaction is:

2 H₂O → 2 H₂ + O₂

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

H₂O: 2 moles
H₂: 2 moles
O₂: 1 mole

The molar mass of the compounds is:

H₂O: 18 g/mole
H₂: 2 g/mole
O₂: 32 g/mole

Then, by reaction stoichiometry, the following mass quantities of each compound participate in the reaction:

H₂O: 2 moles ×18 g/mole= 36 grams
H₂: 2 moles ×2 g/mole= 4 grams
O₂: 1 mole ×32 g/mole= 32 grams

<h3>Definition of theorical yield</h3>

The theoretical yield is the amount of product acquired through the complete conversion of all reagents in the final product, that is, it is the maximum amount of product that could be formed from the given amounts of reagents.

<h3>Theorical yield of O₂</h3>

The following rule of three can be applied: if by reaction stoichiometry 36 grams of water form 32 grams of oxygen, 29.2 grams of water form how much mass of oxygen?

$mass of oxygen=\frac{29.2 grams of waterx32 grams of oxygen}{36 grams of water}$