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3 years ago

Which of the following types of energy does an object store in the bonds of atoms and molecules? (5 points)

Chemistry

1 answer:

patriot [66]3 years ago

6 0

Answer:

sound energy

Explanation:

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You have a hypothesis that you can dissolve more sugar in hot water than cold water

Gnesinka [82]

Answer:

The indepandent variable is wether its hot or cold water, so the tempurature of the water. The dependant variable is how much sugar disolves.

Explanation:

The indepandant variable is what changes or has a direct affect on the depandant. The depandant is what is being mesured or tested.

3 0

3 years ago

An ionic bond is best described as

LekaFEV [45]

The answer would be B the transfer of electrons from one atom to another

6 0

4 years ago

Read 2 more answers

Compare the physical properties of two forms of carbon: diamond and graphite

Mariana [72]

Diamond and graphite are allotropes of carbon and have various differences in their physical properties.

Explanation:

Diamond:

It is crystalline in nature
Each Each C is $sp^{3}$ hybridized and forms 4 covalent binds with neighboring C atoms
The geometry is tetrahedral
C-C bond length is 154 pm
It has rigid covalent boning which is difficult to break.
It acts as an electric insulator

Graphite:

It has layered structure
Each C atom is sp2 hybridized and forms 3 sigma bonds with 3 other C atoms. Fourth electron forms pi bond.
The geometry is planar
C-C bond length is 141.5 pm
It is soft. Its layers can be separated easily
It is good conductor of electricity.

This is the comparison of the physical properties of two forms of carbon: diamond and graphite

5 0

3 years ago

Which of the following words means "the degree to which a measurement is precise and reliable"?

Vikki [24]

B, because that’s the simplified definition of accuracy

7 0

3 years ago

A 34.57 mL sample of an unknown phosphoric acid solution is titrated with a 0.127 M sodium hydroxide solution. The equivalence p

Bas_tet [7]

Answer: The concentration of unknown phosphoric acid solution is 0.034 M

Explanation:

To calculate the concentration of acid, we use the equation given by neutralization reaction:

$n_1M_1V_1=n_2M_2V_2$

where,

$n_1,M_1\text{ and }V_1$ are the n-factor, molarity and volume of acid which is $H_3PO_4$

$n_2,M_2\text{ and }V_2$ are the n-factor, molarity and volume of base which is NaOH.

We are given:

$n_1=3\\M_1=?M\\V_1=34.57mL\\n_2=1\\M_2=0.127M\\V_2=28.2mL$

Putting values in above equation, we get:

$3\times M_1\times 34.57=1\times 0.127\times 28.2\\\\M_1=\frac{1\times 0.127\times 28.2}{3\times 34.57}=0.034M$

Hence, the concentration of unknown phosphoric acid solution is 0.034 M

7 0

3 years ago