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space and chemistry
words about space and chemistry
Question | Answer |
---|---|
list the main 3 types of galaxys? | Spiral Galaxy,Elliptical Galaxy,and Irregular Galaxy. |
how many molecules are in 8Co+2h? | 10. |
which side is the reactant in this equation 2Su+4i-->4i+2Su? | the left one. |
how hot and bright is the sun compared to other stars? | average. |
what is an HR diagram? | a graph that shows the temperature and how hot a star is. |
what are comets made of? | dust and ice. |
what is popularly know has shotting star? | a meteor. |