Chemistry, 30.03.2020 00:47 allytrujillo20oy0dib

Brainstorm some of the impacts you think your generations energy consumption is having today and on tomorrows future generations

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Answer from: emmmssss21

Explanation:

The impact of energy consumption is more today when compared to previous generation and will surely be more in the future.

Let us understand the meaning of energy consumption:

It is the amount of energy used. Example: water, gas, electricity etc.

Energy is consumed to manufacture products, to run day-to-day life etc.Our ancestors lived without electricity, without using the man-made gas. They used all natural resources to run day-today life. Nowadays, there are lots of factories, we use vehicles to travel which consume more gas, etc. Obviously the consumption is more today.Can we reduce tomorrow? No not possible, we are living in technological world. The world is fast. Obviously we rely on consumption of energy to run in the fast paced world.This impact might spoil the environment. Already the ozone layer has a hole. So in future it might expand and cause damage to the living organism.So, the human has to find a better way to safeguard nature as well to face fast-paced environment.

Answer from: Quest

assuming that your periodic table has eighteen columns, you should highlight the four elements in the third column from the left of the table.

explanation

neutral atoms of elements after calcium contain d electrons. the energy of d orbitals of a particular main shell lies between the energy of the s and p orbitals of the next main shell. for example, electrons in the $3d$ have energy higher than those in the $4 s$ orbital while lower than those of the $4 p$ orbital.

by the aufbau principle, electrons fill orbitals one at a time, starting from those of the lowest energy. the $4s$ orbital is therefore filled right after $3p$ orbitals and before $3 d$ orbitals.

potassium has electron configuration $[\text{ar}] 4 s^{1}$ and calcium $[\text{ar}] 4 s^{2}$ . the s orbital of a main shell holds a maximum of two electrons. the next element would thus have the electron configuration $[\text{ar}] 4 s^{2} \; 3d^{1}$ and satisfy the requirements.

a neutral atom of the element contains three electrons on top of the most recent noble gas element. it should thus be placed in the third column of the periodic table. both scandium and yttrium would satisfy the conditions. an aufbau diagram indicates that the 4f orbital is filled before the 5d. however, it appears that exceptions exists for both lanthanum and actinium. neutral atoms of the two d-block elements also demonstrate the $ns^{2} \; (n-1) p^{1}$ and should be highlighted as well.

Answer from: Quest

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. $hbr$ completely dissociates to $h^+$ and $br-$ ions. a is incorrect because $h_2s$ does not fully ionize to $h^+$ and $hs^-$ ions and some remain as the compound $h_2s$ . c and d are incorrect because, $li_2o$ and $libr$ do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise, if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both $li_2o$ and $libr$ have a complete octet so can not accept any electrons which disqualifies them as acids.