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25 Cards in this Set
- Front
- Back
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What does a reaction need to occur? |
Reactants need to collide The collision needs to be effective |
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What is the first stage of a stars life cycle? |
Nebula |
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How long ago was the Big Bang? |
13.7 billion years ago |
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Atomic Mass |
Proton+Neutron |
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Weather meaning |
Daily conditions |
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Evidence for the Big Bang theory? |
CMBR- fills all space Redshift- the movement of stars and planets still expanding |
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How many light years in a parsec? |
3.26 light years |
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What is a catalyst? |
A catalyst is a chemical that speeds up a reaction, but I’m not consumed during the reaction |
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What are the products of an acid base reaction? |
Salt and water are the products |
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What is the absolute magnitude of A star |
The magnitude from 10 parsecs |
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What star-would be brightest? katiebuttlicker = 1000(L) frankiefart= -1000(L) |
Frankiefart would be brighter |
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What is the geocentric view |
The idea that the Earth is in the middle of the |
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What can we use to measure the universe? |
Cepheid variables, Light years parsecs |
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How many stars are estimated to be in the Milky Way |
100 Thousand million stars |
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What happened in the first three seconds, that the universe came to. Existence |
Protons and neutrons start to combine to form the first nuclei of single Adams, hydrogen, 75% helium, 25% and lithium trace |
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What happened in the first 300 million years of the universe is existence |
Pockets of gas start to condense into earlier stars and galaxies |
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What is cosmology? |
The philosophical study of the beginning of the universe |
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Explain the life cycle of a red super giant |
Nebula, massive star red, super giant, supernova, blackhole, or neutron star |
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What are the issues with the big bang theory? |
Surface, brightness, and light elements |
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Charge of cation |
Positive charge, metals |
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What is the chemical symbol for magnesium? |
MG |
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How does rust form? |
Oxidisation |
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Give one example for the concentration, surface area, agitation, and catalyst factors of rate of reaction |
Cordial for concentration, cooking for surface area, baking for temperature, saliva for catalyst and mixing for agitation |
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Name 2-3 Halogens |
Iodine, Fluorine, Chlorine, Borine |
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name 3 people who developed the idea of the modern universe |
Tycho Brahe, Johannes Kepler, edwin Hubble, isaac newton, Galileo galilei |
