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2 years ago

The amount of thermal energy stored in an object depends on what

Chemistry

2 answers:

OlgaM077 [116]2 years ago

6 0

This person is right ^^

Snowcat [4.5K]2 years ago

3 0

Answer:

The amount of thermal energy stored in an object depends on three things.

The mass of the object.
The temperature of the object.
The amount of energy that the particular material stores per degree of temperature.

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We make a basic solution by mixing 50. mL of 0.10 M NaOH and 50. mL of 0.10 M Ca(OH)2. It requires 250 mL of an HCl solution to

andreyandreev [35.5K]

Answer: The correct answer is Option 5.

Explanation:

To calculate the molarity of the solution after mixing 2 solutions, we use the equation:

$M=\frac{n_1M_1V_1+n_2M_2V_2}{V_1+V_2}$

where,

$n_1,M_1\text{ and }V_1$ are the n-factor, molarity and volume of the NaOH.

$n_2,M_2\text{ and }V_2$ are the n-factor, molarity and volume of the $Ca(OH)_2$

We are given:

$n_1=1\\M_1=0.10M\\V_1=50mL\\n_2=2\\M_2=0.1\\V_2=50mL$

Putting all the values in above equation, we get:

$M=\frac{(1\times 0.1\times 50)+(2\times 0.1\times 50)}{50+50}\\\\M=0.15M$

To calculate the molarity 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 $HCl$

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

We are given:

$n_1=1\\M_1=?M\\V_1=250mL\\n_2=1\\M_2=0.15M\\V_2=100mL$

Putting values in above equation, we get:

$1\times M_1\times 250=1\times 0.15\times 100\\\\M_1=0.06M$

Hence, the correct answer is Option 5.

7 0

3 years ago

What ALWAYS occurs simultaneously with reduction?

Lena [83]

Answer:

Oxidation occurs simultaneously with reduction.

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2 years ago

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The least electronegative element from among the following is

Anettt [7]

The most appropriate answer is C !! Cs is most electropositive and thus least electronegative !!

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3 years ago

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Differentiate between subjective and objective mineral properties

malfutka [58]

Subjective minerals are minerals that are subjected to so something specific. Objective minerals are minerals that have an object they are made for.
although this is a small difference, in the scientific world with out this you could go totally wrong

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3 years ago

What happens to light when it is captured by a material? plz, help meeeee!!!!! TwT

Nat2105 [25]

During absorption, frequency of the incoming light wave is either near or at the energy level of the electrons in the matter of the material. The electrons will absorb the energy of the light wave and change their energy state.

Hope that helps! :)

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2 years ago