Answer:
5.66 %.
Explanation:
<em>mass percent is the ratio of the mass of the solute to the mass of the solution multiplied by 100.</em>
<em />
<em>mass % = (mass of solute/mass of solution) x 100.</em>
<em></em>
mass of potassium nitrite = 30.0 g,
mass of the solution = mass of water + mass of potassium nitrite = 500.0 g + 30.0 g = 530.0 g.
<em>∴ mass % = (mass of solute/mass of solution) x 100</em> = (30.0 g/530.0 g) x 100 = <em>5.66 %.</em>
1. Mechanical weathering
2. Reactions with oxygen
3. A rock that has been changed into one or more new compounds
Hope this Helps!!
Answer:
<h2><em><u>4Na + O2 - 2Na20</u></em></h2>
<em><u>I</u></em><em><u>s</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>balanced</u></em><em><u> </u></em><em><u>equations</u></em><em><u> </u></em><em><u>.</u></em><em><u> </u></em>
Answer:
C.They are only magnetic if an electric current is running through them
Explanation:
Electromagnets are conductors which develop a magnetic field due to the electrons flowing through them. If the flow of electric current stops, the motion of the electrons stop and they do not generate their magnetic fields.
Answer:
the reducing flame also called the carburizing flame.
Explanation:
because it gets the oxides of the unknown salts
