Answer:
number (12 is c) (13 is 5) (14 is 5)
Explanation:
Answer:
KBr dissolved in water.
Explanation:
A substance conducts electricity as a result of the presence of mobile ions in the substance.
An ionic substance such as KBr when dissolved in water releases free ions which become charge carriers in solution hence the solution conducts electricity. Solid ionic substances such as solid KBr and solid baking soda do not conduct electricity because the ions are strongly bound to each other in the crystal lattice.
Molecular substances such as sugar and alcohol do not conduct electricity even in solution.
Well first you need to convert all the substances into there other name. For example: you would change #1 to Mg+O=MgO. That would be known as a synthesis reaction.
Answer: <u>Hydrogen.</u>
Explanation: <u>One problem with fuel-cell cars is that hydrogen gas is not readily available in pure form.</u> Fuel cell vehicles use hydrogen gas to power an electric motor. Unlike conventional vehicles which run on gasoline or diesel, fuel cell cars and trucks combine hydrogen and oxygen to produce electricity, which runs a motor. Hope this helps ^-^.
Percentage of abundance of Magnesium = 78.99%
<span>Magnesium- 26 has a percent abundance = 11.01%
</span>
100-78.99-11.01=10%
