CC5 Ionic Compounds
暂无描述。系统推荐的高质量记忆内容，适合每天坚持背诵学习。
卡片预览 (14 张)
What types of elements will an ionic compound contain? (metals or non-metals?)
Metal and non-metal elements Ammonium compounds are an exception.
Sodium chloride is an ionic compound, NaCl. How many atoms will you likely find chemically bonded together in a sample of pure sodium chloride?
NOT 2, a huge number, billions. The formula just shows the ratio of sodium to chlorine is 1-to-1
Define giant ionic lattice
A huge 3D network of ions
State the melting points of ionic substances
High
Explain why ionic substances have high melting points.
Strong electrostatic bonds between oppositely charged ions take a large amount of energy to break.
Ionic compounds contain charged paticles that can sometimes move around. What is the name of this charged particle?
Ions
Do ionic compounds have delocalised (free to move) electrons?
No
Will NaCl(s) conduct electricity?
No
Will NaCl(l) conduct electricity?
Yes
Will NaCl(aq) conduct electricity?
Yes (aq stands for aqueous which means it is dissolved in water) The ions can move around when it is dissolved.
What does molten mean?
Melted
Explain why ionic compounds do not conduct electricity when solid
Because the ions are not free to move
Explain why ionic compounds conduct electricity in solution
Because the ions are free to move
Explain why ionic compounds conduct electricity when molten
Because the ions are free to move