<h2>Answer:</h2>
Justin Bleeber noticed almost 4 chemical changes while conducting his experiment with a soda can. He noticed chemical changes in cracker burns when it heats the water in a soda can. He observed the chemical change when the waves of the gas are seen coming out on the top of the can. He also observes changes while he uses the flame from Bunsen burner to light a wooden split.
Answer:
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When an atom gains or donates electrons to form an ion is called ionization. Hydrochloric acid with water and carbon dioxide with water are the ionization reaction.
<h3>What are Ionization reactions?</h3>
In ionization reactions, the chemical species undergo changes to gain or lose electrons to acquire charge.
The reaction between hydrochloric acid and water to yield hydronium ion and chloride ion, and the reaction between carbon dioxide and water to yield hydronium ion and bicarbonate ion is the example of ionization as electrons are donated and gained by the species.
Therefore, the ionization reaction results in the gain or loss of electrons.
Learn more about ionization here:
brainly.com/question/14575718
Answer:
a lithium
Explanation:
The elements in the second period are lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine and neon. In the second period, the atomic radius of the elements decreases across the period, thus lithium has the highest atomic radius of 152 picometer while neon has the least [67 picometer
Answer:
d. 75 protons, 110 neutrons
Explanation:
In an isotope, the number next to the number of the atom is the mass number (Protons + neutrons). Rhenium has as atomic number 75, that means Rhenium has <em>75 protons</em>. As atomic mass, 185, is the sum of protons and neutrons, number of neutrons is:
185 - 75 = <em>110 neutrons</em>
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Thus, right answer is:
<em>d. 75 protons, 110 neutrons
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