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riadik2000 [5.3K]
3 years ago
12

The salts you tested were held together by ionic bonds. The compounds were made of two types of ions, positive and negative, tha

t were attracted to each other because of their opposite charges. Some ionic bonds take more energy to break. Based on your investigation, which compounds have bonds that require the most energy to break?
A.
an ionic compound that completely dissolves in water, forming many ions


B.
an ionic compound that partially dissolves in water, forming some ions


C.
an ionic compound that does not dissolve in water, and thus does not form any ions
Chemistry
2 answers:
madam [21]3 years ago
8 0

The plac we go to is e mother tucker

vladimir1956 [14]3 years ago
5 0

Answer:

A an ionic compound that completely dissolves in water, forming many ions

Explanati

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10g of hyrogen react with excess of oxygen gas according to the equation:
Degger [83]

Answer:

Volume of O₂ = 56 dm³

mass of water vapors (H₂O) = 90 g

Explanation:

Data Given:

mass of Oxygen = 10 g

Volume of Oxygen = ?

mass of the water vapor = ?

Reaction Given:

                 2H₂+O₂---->2H₂O

Solution:

First we have to look at the reaction for the information required

                 2H₂   +  O₂  -------> 2H₂O

               2 mol    1mol           2 mol

now convert moles to grams

molar mass of H₂ = 2(1) = 2 g/mol

molar mass of O₂ = 2(16) = 32 g/mol

molar mass of H₂0 = 2(1) + 16 = 18 g/mol

So the masses will be

                      2H₂          +              O₂        ------->      2H₂O

                2 mol (2 g/mol)      1mol (32 g/mol)         2 mol (18 g/mol)

                      4 g                            32 g                           36 g

So now we know that

4 g of hydrogen combine with 32 g of Oxygen and give 36 g of water vapors.

By using above information

First we find the volume of Oxygen:

For this first we find mass and then moles of Oxygen

As we know

if 4 g of hydrogen combine with 32 g of Oxygen then how much oxygen will react with 10 g of hydrogen

Apply unity formula

                        4 g of hydrogen H₂ ≅ 32 g of Oxygen O₂

                         10 g of hydrogen H₂ ≅ X g of Oxygen O₂    

by doing Cross multiplication

                         g of Oxygen O₂   = 32 g x 10 g / 4 g

                         g of Oxygen O₂   = 80 g

So,                  

mass of oxygen = 80 g

now find moles of oxygen

formula used:

            no. of moles = mass in grams/ molar mass . . . . . . (1)

Put values in above equation 1

            no. of moles = 80 g / 32 g/mol

             no. of moles = 2.5

Now to find volume of oxygen

Formula used

 Volume of O₂ = no. of moles x molar volume (22.4 dm³/ mol) . . . . . . (2)

Put values in equation 2

             Volume of O₂ = 2.5 moles x 22.4 dm³/mol

            Volume of O₂ = 56 dm³

______________________

Now to find mass of water vapors

As we now

if 4 g of hydrogen produce 36 g of water vapors then how much water vapor will produce from 10 g of hydrogen

Apply unity formula

                        4 g of hydrogen H₂ ≅ 36 g of water vapors (H₂O)

                         10 g of hydrogen H₂ ≅ X g of water vapors (H₂O)  

by doing Cross multiplication

                         g of water vapors (H₂O) = 36 g x 10 g / 4 g

                         g of water vapors (H₂O)   = 90 g

So,                  

mass of water vapors (H₂O) = 90 g

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Platinum will scratch gold true or false
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True sis is true period...

6 0
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What is the purpose of a seismograph?
Rom4ik [11]

Answer:

to measure seismic waves

Explanation:

it's used during earthquakes to tell how big on the richter scale the earthquake was

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An atom does not have to have equal numbers of protons and _________________ in the nucleus.
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Answer:

the answer is neurtons

Explanation:

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How many grams are there in 1.5x10^25 molecules of CO2?
Arturiano [62]

Answer:

Now, a substance's molar mass tells what the mass of one mole of that substance is. In carbon dioxide's case, its molar mass is equal to 44.01 g/mol , which means that every mole of CO2 will have a mass of 44.01 g

Explanation:

5 0
2 years ago
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