Answer the following question given this paragraph: Carbon dioxide is slightly soluble in water. There is an equilibrium reaction that occurs as the carbon dioxide reacts with the water to form carbonic acid (H2CO3). Since carbonic acid is a weak acid, it can dissociate into protons (H+) and hydrogen carbonate ions (HCO 3 ). Q: Carbonic acid can dissociate into hydrogen carbonate ions and what? Choices: - protons - atoms - electrons - protons A:
protons
(Question)
Answer the following question given this paragraph: Fossil fuels are non-renewable sources of energy that produce environmental damage. Q: What are non-renewable sources of energy that produce environmental damage? Choices: - crop fuels - sunlight - wind - fossil fuels A:
(Answer)
fossil fuels
Ques: Answer the following question given this paragraph: yellow liquid used in the production of synthetic rubber. Its condensed structural formula is ClSSCl. Ethylene glycol is the major ingredient in antifreeze. Its condensed structural formula is HOCH2CH2OH. Trimethylamine is one of the substances responsible for the smell of spoiled fish. Its condensed structural formula is (CH3)3N. Given: condensed structural formula Asked for: molecular formula Strategy: A Identify every element in the condensed structural formula and then determine whether the compound is organic or inorganic. B As appropriate, use either organic or inorganic convention to list the elements. Then add appropriate subscripts to indicate the number of atoms of each element present in the molecular formula. Solution: The molecular formula lists the elements in the molecule and the number of atoms of each. Q: Trimethylamine is one of the substances responsible for the what of spoiled fish? Choices: - appearance - decay - feel - smell A:
Ans: smell
(Q).
Answer the following question given this paragraph: Q: Terrestrial arthropods generally have internal surfaces specialized for what? Choices: - water uptake - food gathering - protection - gas exchange A:
(A).
gas exchange
Ques:Answer the following question given this paragraph: This model shows the arrangement of oxygen and hydrogen atoms in a water molecule. A water molecule has a bent or angular (non-linear) shape, with an angle of about 105. The nucleus of the oxygen atom attracts electrons more strongly than do the hydrogen nuclei. As a result, the middle part of the molecule near oxygen has a negative charge, and the other parts of the molecule have a positive charge. In essence, the electrons are "pulled" toward the nucleus of the oxygen atom and away from the hydrogen atom nuclei. Water is a polar molecule, with an unequal distribution of charge throughout the molecule. Q: The oxygen atom in a water molecule pull the electrons away from the hydrogen atoms which leads to an unequal distribution of what? Choices: - nitrogen - atomic mass - orbits - charge A:

Ans:charge
Ques: Answer the following question given this paragraph: Common acids and the polyatomic anions derived from them have their own names and rules for nomenclature. The nomenclature of acids differentiates between oxoacids, in which the H+ ion is attached to an oxygen atom of a polyatomic ion, and acids in which the H + ion is attached to another element. Carboxylic acids are an important class of organic acids. Ammonia is an important base, as are its organic derivatives, the amines. Q: What class of acids do carboxylic acids fall under? Choices: - hydrochloric acids - inorganic acids - carbolic acids - organic acids A:
Ans:
organic acids