To measure length scientists may use rulers, meter sticks, etc. and to measure mass they may use a balance.
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:
If the pressure of the system increases then the boiling point will increase.
If the pressure of the system decreases then the boiling point will decrease. If there is no change in pressure then the boiling point will remain constant.
Explanation:
Ionic bonds are easily disrupted in aqueous solutions, as they can ionize readily and as a result be surrounded by the solvent, water, where the partial positive and negative charges would be surrounding the appropriate charge of the ions.
