Chemistry, 02.11.2020 01:50 Marisolv06
A student wants to demonstrate the size of a magnetic field to a friend. Which activity should the student
perform
A
Suspend a magnet freely using a threes, and compare its alignment with a compass.
B
Cut a magnet in half and bring the hares together to show they attract each other.
С
Sprinke iron filings around the magnet, and observe the pattern in which the iron fillings arrange
themselves
Put an ron baarith a magnet and cring the bar close to the magnet to show that they attract each
D
Answers: 3
Chemistry, 22.06.2019 15:30
Count the number of each type of atom in the equation below, and then balance the equation. write in the numbers of atoms and coefficients. add a 1 if there should be no coefficient. cs2(l) + o2(g) → co2(g) + so2(g) c [ ] s [ ] o > c [ ] s [ ] o [ ] cs2(l) + [ ] o2(g) > [ ] co2(g) + [ ] so2(g)
Answers: 3
Chemistry, 23.06.2019 06:00
Nthis lab, you will do experiments to identify types of changes. using the question format you learned (shown above), write an investigative question that you can answer by doing these experiments
Answers: 3
Chemistry, 23.06.2019 15:00
What is the mass in grams of 0.94 moles of sodium bicarbonate, nahco3?
Answers: 1
Chemistry, 23.06.2019 17:10
Two changes are described below. a green banana turns yellow and ripens. a layer of rust forms on an iron nail. which statement is true about the two changes? a) both are chemical changes because new substances are formed. b) both are physical changes because only the physical state of the substances change. c) a is a physical change due to a change of state, but b is a chemical change because new molecules are formed. d) a is a chemical change due to a change of state, but b is a physical change because new molecules are formed.
Answers: 1
A student wants to demonstrate the size of a magnetic field to a friend. Which activity should the s...
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