Chemistry
This is the total number of atoms in a molecule of K2CrO4
What is 7?
With additive colour theory, all colours can be made from these three primary colours
What are red, blue, and green?
The cell theory states that all cells come from this
What are existing cells?
Unlike climate which occurs over 30+ years, this describes day-to-day changes
What is weather?
These two coordinates can tell you where on earth you are
What are latitude and longitude?
This is the chemical formula for dinitrogen trioxide
What is N2O3
In a plane mirror, the angle or reflection is equal to this angle
The angle of incidence
This organelle provides cells with energy through cellular respiration (powerhouse of the cell)
What are mitochondria?
This type of greenhouse gas is used by plants for photosynthesis
What is carbon dioxide?
Atoms are made up of positive protons, negative electrons, and these?
What are neutral neutrons?
In this type of reaction, one compound is broken apart into multiple atoms/compounds.
What is a decomposition reaction?
This type of lightbulb uses 4 times more electricity than fluorescent light bulbs?
What is an incandescent lightbulb?
This is anything that causes a change in a cell's DNA
What is a mutagen?
In the Northern hemisphere, this is the name for the longest day of the year
What is the summer solstice?
The synthesis reaction Fe + I2 --> FeI2 forms this compound
What is iron iodide? (FeI2)
In order to balance the equation HgO --> Hg + O2, these numbers must be added
2 before HgO and 2 before Hg
2HgO --> 2Hg + O2
Wavelength and frequency have this type of relationship
What is inversely proportional?
In plant cells, a new one of these forms during mitosis, separating the 2 daughter cells.
What is a cell wall?
This happens to about 50% of the heat emitted by the sun.
What is being absorbed by land and ocean?
This ionic compound is made up of calcium and a halogen (group 17)
What is calcium chloride?
In an ionic compound, this is what the positively charged ion is called
What is a cation?
Wavelengths that are shorter that infrared, but longer than ultraviolet fall here
What is the visible spectrum?
This is the phase of the cell cycle in which centromeres divide, and sister chromatids separate
What is anaphase?
This property of a surface describes the proportion of radiation that is reflected.
What is albedo?
These two terms refer to light bouncing back the way it came, and light bending
What are reflection and refraction?