15) Water forms about ___ of human body and almost __ of some plants. 16) A.Lavoisier, in the year __ showed that water is a compound of ___ and ____ atoms combined together in the ratio of ____. 17) A solution of iodine in alcohol known as _____. 18) Air is an example of ___ solution. 19) Washing soda contains ____ molecules of water of crystallization. 20) Anhydrous substance lack their ____. 21) The higher the temperature of the air, the _____ the efflorescence. 22) Concentrated ___ remove water of molecules from blue vitriol. It is a ____ agent. 23) ___ is used for drinking purpose.
Answers
Answer:
75 °/°
oxygen (1778) and hydrogen (1783)
1: 8
tincture of iodine
homogeneous mixture of two or more substances.
10
COLOUR
Explanation:
Answer:
15) Nutrients are vitamins, minerals
16)In June 1783, Lavoisier reacted oxygen with inflammable air, obtaining "water in a very pure state." He correctly concluded that water was not an element but a compound of oxygen and inflammable air, or hydrogen as it is now known
17) it's tincture
18) it's gaseous solution
19) it's 10
20)hydrous or A substance is anhydrous if it contains no water. Many processes in chemistry can be impeded by the presence of water, therefore, it is important that water-free reagents and techniques are used.
21)its spontaneous
22)Sulphuric acid is a dehydrating agent. It will remove all the water molecule attached to CuSO4 through coordinate covalent bond and change the colour from blue to white
23)its mineral water