Please help, if you know the answers or just one that will help a lot! (the subject is science btw :>) I can also mark you brainliest ! 1.
Which of the following reasons explains why if salt water is heated, the water turns into steam while the salt remains? (4 points)
A.) Water and salt have an equal boiling point.
B.) Water has a lower boiling point than salt.
C.) Salt has a lower boiling point than water.
D.) Salt and water have an equal melting point.
2.
Which of the following is not an intensive physical property? (3 points)
A.) Magnetism
B.) Boiling point
C.) Thermal conductivity
D.) Volume
3.
Lisa had 20 grams of water. She poured out 15 grams. Which of the following physical properties of the water changes? (4 points)
A.) Boiling point
B.) Density
C.) Electrical conductivity
D.) Volume
4.
A substance used to dissolve other substances is which of the following? (3 points)
A.) Saturation
B.) Solubility
C.) Solute
D.) Solvent
5.
Complete this sentence. The melting point of a sample will when the size of the sample increases. (3 points)
A.) decrease
B.) increase
C.) stay the same
D.) be unable to be determined
6.
Which property describes a material's ability to conduct heat? (3 points)
A.) Electrical conductivity
B.) Boiling point
C.) Thermal conductivity
D.) Melting point