Answer:
It conducts electricity
It conducts heat
Water is needed for rusting
Explanation:
Metals refer to elements that are found towards the left hand side of the periodic table of elements. They are found in groups 1- 13 and few of them are also found at the bottom of groups 14 and 15.
Now these metal have certain properties that are general to all of them. two of these properties listed among the options in the question are;
i) They conduct electricity
ii) They conduct heat
These properties apply to all metals universally.
Rusting is an electrochemical reaction in which hydrated iron III oxide is formed. In the electrochemical reaction, water in intimately involved in the process. Hence; oxygen and water are required for rusting to take place.
1) ionic compound
there should be motive ions or free movable electrons to conduct electricity. The ionic compounds in the solid state, has no motive ions or free electrons as the ions are tightly attracted to each other. But in liquid state, the ions separate and move freely.
Correct Answer: Mixture will be heterogeneous
Reason:
The mixture is said to be homogenous, if it contains single phase, On other hand, heterogenous system has, multiple phases. When, oil and vinegar are mixed together, on standing, the two liquids separates out as different phases. Hence, the mixture will be refereed as heterogeneous.
Answer:
definite shape.
Explanation:
This is one of those questions where
1. It depends on what you have been told.
2. it depends on what the marker thinks the answer is.
As long as a substance is above absolute zero, there is some movement at the atom level. It may not be much, and it may be very confined, but the particles do move. That is the second best answer, and very possibly right.
I think your best answer is that solids have a definite shape. When you consider gasses and liquids, they have no definite shape at all. A liquid will take on the shape of the container it is in. So will gasses.
Only solids have a definite shape.. I would pick that, but don't be surprised if it is not right.
