chemical analysis

Question 1

whats a pure substance

Answer 1

is a single element or compound that isnt mixed with any other substance

Question 2

whats the definition on melting point

Answer 2

is the temperature at which a solid changes into liquid

Question 3

whats a boiling point

Answer 3

is the temperature at which a liquid changes into a solid

Question 4

does the temperature of a pure substance stay the same at melting and boiling points

Answer 4

yes

Question 5

what temperature do impure substances boil at

Answer 5

a range of different temperatures

Question 6

whats a alloy
is it a pure substance

Answer 6

different metals together
no

Question 7

what does water boil at and melt at#
what about sulfur

Answer 7

boils at 100 melts at 0
115 and 444

Question 8

what have mixtures been designed for

Answer 8

to make a useful product

Question 9

give me examples of mixtures

Answer 9

alloy
medicine
fertiliser

Question 10

whats a formulation

Answer 10

A formulation is a mixture that has been designed as a useful product and is formed by mixing together several different substances in carefully measured quantities to ensure the
product has the required properties