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3 years ago

Which of the following is an example of an environmental problem caused by chemicals

Chemistry

1 answer:

Neko [114]3 years ago

7 0

Answer:

Explanation:

All of the other options are ways that could help the environment from the chemicals, but if they just continue to use the chemicals then it would hurt the environment

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Which scientific tools are used by life scientists

Zolol [24]

Microscopes, balances,scales

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3 years ago

The enthalpy of vaporization of liquid water at 100°C is 2257 kJ/kg. Determine the enthalpy for apordato of iuod eeat capacity o

igomit [66]

Explanation:

The given data is as follows.

$T_{1} = 100^{o}C$ , $T_{2} = 10^{o}C$

$\Delta H_{vap1}$ = 2257 kJ/kg, $\Delta H_{vap2}$ = ?

For water, $C_{p}$ = 4.184 $kJ/kg ^{o}C$

Formula to calculate heat of vaporization is as follows.

$\Delta H_{vap1} - \Delta H_{vap2}$ = $C_{p}(T_{1} - T_{2})$

Hence, putting the values into the above formula as follows.

$\Delta H_{vap1} - \Delta H_{vap2}$ = $C_{p}(T_{1} - T_{2})$

$2257 kJ/kg - \Delta H_{vap2}$ = $4.184 kJ/kg ^{o}C (100 - 10)^{o}C$

$\Delta H_{vap2}$ = 2257 kJ/kg - 376.56 kJ/kg

= 1880.44 kJ/kg

Thus, we can conclude that enthalpy of liquid water at $10^{o}C$ is 1880.44 kJ/kg.

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3 years ago

How is an ion different from the parent ion

bonufazy [111]

<span> Chemical properties depend on electron configuration. By either gaining or losing electrons, an atom changes its electron configuration and therefore its chemical properties also change. 9.</span>

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3 years ago

Which of the following is true about an abiotic resource?

aev [14]

Answer:

B. It is a nonliving resource.

Explanation:

The definition of abiotic is "nonliving," and examples of abiotic resources may include soil or water.

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3 years ago

The arrangement of things in the order that they occurred.

RoseWind [281]

The answer is B: chronological order

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3 years ago

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