Chemistry, 21.08.2019 19:30 atkinsonsinbraz
Which of the following is true about compounds?
1) they can be physically separated into their component elements.
2) they have properties similar to those of their component elements.
3)they have compositions that vary.
4) they are substances.
Answers: 1
Chemistry, 22.06.2019 09:10
Select the correct answer from each drop-down menu.describe what happens to a carbon-11 atom when it undergoes positron emission.the decay of a carbon-11 atom _1_, and this causes it to emit _2_.options for 1: > changes a neutron into a proton> changes a proton into a neutron> is hit with a neutron> reconfigures its protons and neutronsoptions for 2: > a negatively charged electron-sized particle> a positively charged election-sized particle> two atoms and several neutrons> two neutrons and two protons
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Chemistry, 22.06.2019 09:10
How have the greenhouse gasses increased from the year 2000 to 2018
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About 3% of the water on earth is freshest. only about 40% of that freshwater is available for human use. why is so much freshwater unavailable for human use?
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Which of the following is true about compounds?
1) they can be physically separated into thei...
1) they can be physically separated into thei...
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