Question

III Evaluation:

1. The non-metal which is in liquid State is
2. Which metal is applied as a thin coating on certain types of sweet?
3.Name the substance which contains both elements and compounds.
4. Which metal is used for making food wrappers? why?
5. Pencil lead is made of metal. Say True or False.
6. Why Berillium is placed in fourth place and Boron is in fifth place in the periodic table?
7. Which is used to cut and grained glass?​

Answer 1

Answer:

1.) Bromine

2.) Vark(Silver or gold leaf)

3.) Most elements on Earth bond with other elements to form chemical compounds, such as sodium (Na) and Chloride (Cl), which combine to form table salt (NaCl).

4.) Aluminium foils are used for preserving the food material and used as packaging material as it does not react with the food.It is white,soft and ductile metal. Aluminium is almost always alloyed which improves its mechanical properties when tempered. 

5.) False

Answer 2

Answer:

3.Pure substance

explanation:

because I think pure substance has both elements and compounds