Answer:
B) The north and south Poles
Explanation:
when dealing with magnets they have a negative and Positive charge on their south and north poles. Negative attacks with positive and positive with negative so both poles on each magnet should react to each other
Answer:
c
Explanation:
touching a hot piece of metal. because the energy or the hotness of the pot is touching your hand which is a direct contact.
Reactivity could be one also toxicity flammability ect
Answer:
The correct option of the first option
Explanation:
Dissolution of a solute in a solution is the process in which the solute interacts with the solvent leading to the disappearance of the solute to form a solution. Rate of dissolution is primarily affected by three factors namely
<u>Stirring of the solution</u>: Stirring the solution causes the solute to interact more with the solvent, <u>thus increasing the rate of dissolution</u>.
<u>Surface area of the solute</u>: The smaller the surface area of the solute, the more easier it is for it (the solute) to interact with the solvent. Hence, <u>the smaller the surface area, the faster the rate of dissolution</u>.
<u>Temperature of the solvent</u>: An increase in temperature of the solvent <u>causes the generally causes more things to dissolve in this solvent</u> due to increased energy of molecules in the solvent, which causes the molecules of the solute and solvent to interact more.
A decrease in the amount of solute<u> will reduce the amount of interaction the solute (since it is in lesser quantity) have with the solvent hence the rate of dissolution will also be low (even though a solution will still be formed)</u>.
Answer:
B.
Explanation:
CO2 + H2 + O2 - are 3 individual substances.
