<u>Answer:</u>
<em>Chemistry is the reaction between certain elements to </em><em>create a new compound</em><em> which may happen naturally but is mostly man made and hence has lot of good as well as </em><em>adverse effects.</em>
<u>Explanation:</u>
The <em>product or compound</em> that we get and the energy or outcome we receive is the ultimate result that decides whether chemical reaction that has happened is good or bad.
There are reactions that may cause pain and suffering to living beings and are also able to<em> Infuse damage and destruction</em> are are adverse nature. they can also change the course of nature hence are are <em>dangerous.
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Answer:
B is most volatile, A is least volatile
Explanation:
The sub-atomic particles inside the nucleus of atoms of any element are protons and neutrons. Protons have a positive charge and neutrons are neutral with no charge.
Answer:
accepts an H⁺
Explanation:
The following balanced ionic equation is given in this question;
HCl + H₂O → H₃O⁺ + Cl⁻
According to Brønsted–Lowry acid–base theory, a base is any substance that can accept hydrogen ions or protons (H+). Using this definition for the above equation, water (H2O) accepts a proton or H+ that was donated by HCl to form H30+ (hydronium ion), hence, water is acting as a BASE in this reaction because it accepts an H+.
Toxicity is an example of a chemical property.