year 9 Science Homework Week 2
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Last updated over 4 years ago
17 questions
1
What is filtration used to separate?
What is filtration used to separate?
1
What is crystallisation used to separate?
What is crystallisation used to separate?
1
What is distillation used to separate?
What is distillation used to separate?
1
What is chromatography used to separate?
What is chromatography used to separate?
1
What is chromatography used to separate?
What is chromatography used to separate?
1
Why do different inks travel different distances?
Why do different inks travel different distances?
1
A.What is the stationary phase?
A.What is the stationary phase?
1
D.What is the correct equation for Rfvalue?
D.What is the correct equation for Rfvalue?
1
Who’s atomic model described an atom as a solid sphere?
Who’s atomic model described an atom as a solid sphere?
1
What was discovered that led Thompson to change the atomic model?
What was discovered that led Thompson to change the atomic model?
1
What does the plum-pudding model show?
What does the plum-pudding model show?
1
If the plum-pudding model was accurate what would have happened in the alpha-particle scattering experiment?
If the plum-pudding model was accurate what would have happened in the alpha-particle scattering experiment?
1
What is the relative mass of protons and neutrons?
What is the relative mass of protons and neutrons?
1
What is the relative charge of electrons?
What is the relative charge of electrons?
1
What is the relative charge of protons?
What is the relative charge of protons?
1
How many protons does oxygen have?
How many protons does oxygen have?
1
How many electrons does a boron atom have?
How many electrons does a boron atom have?