Which of the following is a physical change ?
• burning a piece of paper
• lighting a match...
Chemistry, 20.10.2020 18:01 mooreadrian41235
Which of the following is a physical change ?
• burning a piece of paper
• lighting a match
• chopping a piece of wood
• a rusting nail
Answers: 3
Another question on Chemistry
Chemistry, 22.06.2019 00:00
Draw the skeletal structures of two different molecules that are each made of 5 carbon atoms and 12 hydrogen atoms.
Answers: 1
Chemistry, 22.06.2019 06:00
There are 6.022, 104 atoms of hg in 1 mole of hg the number of atoms in 45 moles of hg can be found by multiplying 4.5 by 6.022, 102 which is the number of atoms in 4.5 moles of hg, correctly written in scientific notation with the correct number of significant figures? 0 21,109 0 21,100 271, 1024 27.099, 100 mark this and retum save and exit submit
Answers: 1
Chemistry, 22.06.2019 11:50
Calculate the molarity of each of the following solutions. part a) 0.12 mol of lino3 in 5.5 l of solution part b) 60.7 g c2h6o in 2.48 l of solution part c) 14.2 mg ki in 100 ml of solution
Answers: 2
Chemistry, 23.06.2019 03:30
In chemistry, the type of an atom (what element it is) is determined by: a) the number of protons it contains in its nucleus.b) the number of neutrons it contains in its nucleus.c) the number of protons it has in a cloud around the nucleus.d) the number of neutrons it has in a cloud around the nucleus.e) the number of electrons it exchanges with its neighbors.
Answers: 1
You know the right answer?
Questions
English, 19.12.2019 17:31
Mathematics, 19.12.2019 17:31
Mathematics, 19.12.2019 17:31
Social Studies, 19.12.2019 17:31
Mathematics, 19.12.2019 17:31
Mathematics, 19.12.2019 17:31
Mathematics, 19.12.2019 17:31
Mathematics, 19.12.2019 17:31
Chemistry, 19.12.2019 17:31
Mathematics, 19.12.2019 17:31
