(a) there are always twelve.
13. how many protons are present in total in a carbon atom?
(a) there are always twelve.
(b) there are always six.
(c) it depends on the isotope.
(d) there are always four.
14. of the following, which molecule is most polar? (the electronegativities of the atoms are as follows: chlorine 3.0, boron 2.0, hydrogen 2.1, oxygen 3.5, carbon 2.5, and bromine 2.8.)
Answers: 1
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Amap that uses a range of colors and shading to represent the elevation, depth, or landscape of specific features on earth is a/an map.
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Before it was launched, a helium-filled balloon had a pressure of 201 kpa at a temperature of 27°c. at an altitude of 15,000 m, the pressure had decreased to 2.5 kpa and the temperature had dropped to -14 °c. the volume of the balloon increased to 59.3 m3. what is the original volume of the balloon? 13 m3 0.85 m3 0.077 m3 1.17 m3
Answers: 3
13. how many protons are present in total in a carbon atom?
(a) there are always twelve.
(a) there are always twelve.
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