Chemistry, 23.07.2019 16:00, elsauceomotho
Pl i need all of these right for my test (i will vote u brainliest if you get them right) 1) what are the dark spots which appear from time to time on the sun's surface called? corona prominences solar flares sunspots 2) which of the following is the center of the universe according to the heliocentric model? earth moon mars sun 3) how can spectroscopy and infrared technology be useful in space? they can enhance speed by making spacecraft fuel more efficient. they can measure magnetic fields produced by astronomical bodies. they can provide an emergency escape to the astronaut from a space center. they can determine the elements that make up the surface of astronomical bodies.
Answers: 2
Chemistry, 22.06.2019 20:30, trevorhenyan51
What is a difference between a mixture of elements and a mixture of compounds
Answers: 1
Chemistry, 22.06.2019 21:30, MJyoungboy
Harry lives in a city, and he has a lung condition known as asthma. on certain days, harry has to stay inside because pollutants in the air make it difficult for him to breathe. which of these pollution sources are nonpoint sources that might bother harry if he goes outside? choose the two that apply.
Answers: 3
Chemistry, 22.06.2019 21:50, donttrip10
What is a main difference between a mixture and a pure substance? a mixture is only a liquid, but a pure substance can be in any state. a mixture looks the same throughout, but a pure substance does not.1 a mixture can vary in composition, but a pure substance has a set composlo a mixture can be made up of a single compound, but a pure substance car
Answers: 2
Pl i need all of these right for my test (i will vote u brainliest if you get them right) 1) what...
Computers and Technology, 16.07.2019 06:30
Mathematics, 16.07.2019 06:30
Chemistry, 16.07.2019 06:30
English, 16.07.2019 06:30
History, 16.07.2019 06:30
History, 16.07.2019 06:30