Chem
What is the total number of atoms in the following: 2NaHCO₃
12
In what phase of cell division do chromosomes line up along the equator of the cell?
Metaphase
What are the 3 things that can occur when light hits an object?
Absorb, reflect, or transmit
Reservoir that is able to absorb and store thermal energy. Oceans are important example of this
Heat sink
What is the hardest natural substance on Earth?
Diamond
What type of reaction is:
2 H2O2 → 2 H2O + O2
Decomposition
What is the function of the ribosomes in a cell?
What colour on the visible spectrum has the biggest wavelength?
Red (665 nm)
What does it mean for a substance to have a high albedo?
More light is reflected less is absorbed
What year was the first moon landing?
1969
What charge makes halogens (F, Cl, Br) stable ions?
1-
Gas exchange takes place in the __________ of the lungs.
Alveoli
What type of rays on the electromagnetic spectrum have the smallest wavelengths?
Gamma Rays
Name 4 greenhouse gases
Carbon Dioxide
Methane
Ozone
Halocarbons (CFCs)
Nitrous Oxide
Water Vapour
At what age does the frontal lobe of the brain become fully formed?
25
Name the following compound: P4S10
Tetraphosphorus decasulfide
Which structure increases the surface area for absorption in the small intestines?
Villi
What is the speed of light in a vacuum?
3.00 x 108 m/s or 300 000 000 m/s
What is the Paris Agreement?
An agreement between 195 countries to keep temperature increase to well below 2 degrees
How old is Ms Bowron?
26
What are the reactants and products of a complete combustion reaction?
Reactants: fuel and oxygen
Products: carbon dioxide and water
Put these in order of which structures blood flows through in the heart:
Right atrium, Left Atrium, Vena cava, Lungs, Aorta, Right ventricle , left ventricle, Pulmonary vein, Pulmonary artery
Vena Cava -> Right Atrium -> Right Ventricle -> Pulmonary Arteries -> lungs -> Pulmonary Veins -> Left Atrium -> Left Ventricle -> Aorta
Explain how the human eye is able to detect what colour an object is?
Objects appear the colour they are because they absorb all colours of the spectrum EXCEPT the one our eyes see. This colour is reflected which is why we see it
Term for environmental change caused or influenced by people, either directly or indirectly
Anthropogenic
What is ONE of Newton's law of motion?
1. An object will not change its motion unless a force acts on it
2. The force acting on an object is equal to the product of its mass and acceleration
3. For every action, there is an equal and opposite reaction