Your answer will be False cladistics are use to tie an animal to its ancestor.
High ionization energies
High electronegativities
Poor thermal conductors
Poor electrical conductors
Brittle solids—not malleable or ductile
Little or no metallic luster
Gain electrons easily
Dull, not metallic-shiny, although they may be colorful
Lower melting points and boiling point than the metals
Answer:
The second friend is mostly correct.
Explanation:
When pressure decreases, gas solubility decreases. The bubbles are gas molecules that were dissolved in the water at atmospheric pressure. The bubbles started coming out as a result of the decrease pressure. The second bubbles would be water vapor because as the pressure continue to decrease, the amount of vapor pressure ( vapor leaving the surface of the liquid ) equals the external pressure and water begin to boil. So the second bubbles must be water vapor.
The balanced equation is
2 C6H14 (g) + 19 O2 (g) --> 12 CO2 (g) + 14 H2O (g)
<h3><u>Explanation</u>:</h3>
For solving the stoichiometric calculations, we first need to do two steps. One of them is balancing the reaction equation. Here the balancing is done and we can see that 2 moles of hexane reacts with 19 moles of oxygen to produce 12 moles of carbon dioxide and 14 moles of water.
Now, for 2 moles of hexane, number of moles of oxygen required is 19.
So, for 7.2 moles of hexane, number of moles of oxygen required is
.
= 68.4.
So 68.4 moles of oxygen is required.
0 is the oxidation state of Mg in Mg(s). Hence, option C is correct.
<h3>What is an oxidation state?</h3>
The total number of electrons that an atom either gains or loses in order to form a chemical bond with another atom.
The oxidation number of an atom is zero in a neutral substance that contains atoms of only one element.
Hence, option C is correct.
Learn more about the oxidation state here:
brainly.com/question/11313964
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