General Science
What's found in the nucleus of an atom?
Protons and Neutrons.
What is the main difference between Prokaryotic and Eukaryotic cells?
Prokaryotic cells lack membrane-bound organelles.
How many significant figures are there in 0.0004568389
7
What is Avagadro's number?
6.022 x 1023
What is the difference between a Meteor and a Meteorite?
Meteorites hit the ground, while Meteors burn in the atmosphere and turn into Meteorites.
What does DNA stand for?
Deoxyribose nucleic acid
What is the acceleration due to gravity?
9.8 m/s2
Explain the trend of Atomic Radii on the periodic table.
Atomic Radii increases down a group and decreases across a period.
How many atoms are there in Ca(NO3)2
9 atoms
The production of light by living things is called...
Bioluminescence
What is the specific heat capacity of water in J/kg?
4180 J/kg
Name 3 factors that affect solubility.
Temperature, Polarity, Pressure, Size, Agitation
What is the balanced equation for photosynthesis?
6CO2 + 6H20 -------> C6H12O6 + 6O2
light
The large vessels that carry blood away from the heart are called...
Arteries
State the equivalent direction for the following:
[S52°E]
[N63°W]
[E38°S]
[W27°N]
What are the 5 types of chemical reactions?
Synthesis rxn, Decomposition rxn, Single-Displacement rxn, Double-displacement rxn, and Combustion rxn.
In an experiment to find the value of x in the compound MgBr2.xH2O, 7.30 g of the compound on heating to constant
mass gave 4.60 g of the anhydrous salt MgBr2. Find the value of x.
MgBr2.xH2O → MgBr2 + x H2O
What are the 5 types of chemical reactions?
6
What are the 4 stages of mitosis in order?
Prophase, Metaphase, Anaphase, Telophase.
Does sound travel faster through a solid or a gas, and why?
Sound travels faster through solids, as the molecules in the solid are closely packed together. Due to this, they are able to transmit vibrations (energy) faster.
When 1.02 g of steric acid, C18H36O2, has burned completely in a bomb calorimeter, the temperature of the calorimeter rose by 4.26 °C. The heat capacity of the calorimeter was 9.43 kJ/°C. Calculate the total heat of combustion of steric acid in kJ/mol.
Around 11206 kJ/mol.