Answer:
i think its true but I’m not sure
Explanation:
I know that they can. Be mixed
When an ionic is placed in water a dissolving reaction occurs so the positive or negative ion are only attracted to each other
Answer:
obsidian
Explanation:
because it is an igneous rock which is smooth
Lifting the backpack off the floor. Force is being applied in only one direction then (up) which is what constitutes as work. Carrying the box of crayons applies force in two directions (up and forward), which cancel each other out. Work has a vector, which is a quantity containing both direction and magnitude (one, finite direction, not two).
