Top answers

What are the properties of ionic compounds?

Crystalline solids at rtphigh mp and bpoften soluble in waterconduct electricity when dissolved in water or molten
EM
Answered by Elena M. • Chemistry tutor
2290 Views

A) Write a balanced equation for the reaction of Calcium metal with water B) If I react 3 g of Calcium metal, what number of moles do I have?

Reactions and trends of group 1 and 2 metals are common questions asked at GCSE- Ca + 2 H 2 O ==> Ca(OH) 2 + H 2 This reaction will be exothermic and happen slowly in cold water compared to G1 metals, mag...
WS
Answered by Willow S. • Chemistry tutor
4650 Views

Describe how propenal, propanal and propanone can be distinguished from one another by simple chemical tests.

Propenal can be distinguished by adding bromine water, as it will go from a orange/brown solution to a colourless solution due to electrophilic addition. Propanal can be distingiushed from propanone by using...
NA
Answered by Nathan A. • Chemistry tutor
11173 Views

What is the difference between complete and incomplete combustion of a hydrocarbon?

In complete combustion, there is a sufficient supply of oxygen which is able to react with the burning hydrocarbon allowing the reaction products H 2 O and CO 2 to be formed. In incomplete combustion there i...
EM
Answered by Ellen M. • Chemistry tutor
21651 Views

20kg of ammonium nitrate is made from ammonia and nitric acid, what mass of ammonia was used?

The given equation is - NH 3 + HNO 3 --> NH 4 NO 3 Equation to use - Moles = Mass/RFM RFM of ammonium nitrate = 14 + 4 + 14 + (3x16) = 80 20kg = 20000g Moles of ammonium nitrate = 20000/80 = 250 Mole rati...
JS
8437 Views