We have Chemistry
liquids with a pH of 4 are what type of substance
acids
Name the compound MgCl₂.
magnesium chloride
This molecule carries instructions from DNA to the ribosome.
mRNA
What energy transformation occurs for a person who eats and runs
chemical to mechanical
Leftover radiation from the Big Bang
Cosmic microwave background radiation (CMB)
Definition of a cation, include an example
positively charged atom, such as Mg2+
Name the compound N2O5
dinitrogen pentaoxide
The two main steps of protein synthesis (in order)
transcription (DNA-RNA), translation (RNA-protein)
A reaction that absorbs energy from its surroundings
endothermic
The next stage for a Sun-sized star after it runs out of hydrogen in its core.
red giant
Which type of reaction combines two or more substances to form a single product?
synthesis
What is the correct formula for sodium phosphate?
Na3PO4
A red flower crossed with a white flower produces pink flowers. This inheritance pattern is:
incomplete dominance
How much potential energy does an 1kg weight held 2m above the Earth have?
19.6J
What happens to the wavelength of an object that is moving towards us? What colour does it show?
compresses, blue
Which reaction type is shown below:
H3N + Ga(OH)3 ---> GaN + 3H2O
acid base neutralization
Name the compound Cu(NO₃)₂.
copper (II) nitrate
Two parents have a baby. The father is heterozygous (Aa) and the mother is homozygous recessive. What is the probability of having a baby with the phenotype of the recessive trait?
50%
three forms of ionizing energy from radiant light
UV, X-ray, gamma
How many times more acidic is a solution with pH 3 than pH 5?
100
What products are formed when a substance burns
carbon dioxide and water
Name the following acid: H2SO4
sulfuric acid
Colour blindness follows x-linked inheritance. A mother is a carrier and a father has colour blindness. What is the probability the baby will be colourblind?
50%
A 1 kg cart goes down a hill. If it started 1m up, how fast does it go?
4.4m/s
Balance the following reaction: Fe +H2O → Fe3O4 + H2?
3, 4, 1, 4