Chemistry, 01.02.2021 22:00 arimarieestrada
A student was reading about the gases in air. Ozone helps protect Earth from harmful ultraviolet rays that come from the sun. Certain types of pollution created by humans have caused a hole in the ozone layer. This hole is over the South Pole and could become larger if this type of pollution increases. Which question should the student ask to determine if ozone is an elemental molecule? *
A. What is the color of the molecule?
B. What is the shape of the molecule?
C. What elements are present in the molecule?
D. How many atoms are present in the molecule? HEL
Answers: 2
Another question on Chemistry
Chemistry, 22.06.2019 05:00
1)each group 16 element has how many valence electrons? ( )4 ( )6 ( )8 ( )16 2)how many dots appear in the dot structure for calcium ion, ca2+? ( )zero ( )one ( )two ( )eight 3) which of the following atoms forms a cation to obtain an octet of outer shell electrons? ( )magnesium ( )oxygen ( )fluorine ( )helium 4) an al3+ ion contains 13 protons and 10 electrons. ( )true ( )false 5) valence and non-valence electrons are represented in lewis dot structures. ( )true ( )false
Answers: 3
Chemistry, 22.06.2019 11:00
Which are examples of how technology has advanced scientific understanding.1using hot water to sterilize medical equipment.2transplanting a human organ into another individual.3inserting genes from one sheep into another cell to make a cloneunderstanding the different structures that make up a cell.4examining microorganisms from the deepest parts of the ocean
Answers: 2
Chemistry, 22.06.2019 23:00
What is the number of neutrons in an atom with atomic mass of 35
Answers: 2
Chemistry, 23.06.2019 02:00
Which statement is true about the model of the electromagnetic spectrum a: it change the frequencies of light. b: it compare wavelengths of light. c: the color of light waves can be changed using the model. d: the intensities of light waves can be decreased using the model.
Answers: 2
You know the right answer?
A student was reading about the gases in air. Ozone helps protect Earth from harmful ultraviolet ray...
Questions
Social Studies, 08.02.2021 22:50
Mathematics, 08.02.2021 22:50
History, 08.02.2021 22:50
Mathematics, 08.02.2021 22:50
Mathematics, 08.02.2021 22:50
Computers and Technology, 08.02.2021 22:50
Mathematics, 08.02.2021 22:50
Mathematics, 08.02.2021 22:50
English, 08.02.2021 22:50
French, 08.02.2021 22:50
English, 08.02.2021 22:50
Mathematics, 08.02.2021 22:50
