When a strip of magnesium metal is touched to a flame, a bright light and a whitish substance are produced. why is the burning of magnesium considered a chemical change?
a. because the metal reaches a high
temperature
b. because the metal begins to melt
c. because a new substance is formed
d. because the metal is malleable
Answers: 3
Another question on Chemistry
Chemistry, 22.06.2019 04:30
This question is about electrolysis. metal spoons can be coated with silver. this is called electroplating. suggest one reason why spoons are electroplated?
Answers: 1
Chemistry, 22.06.2019 10:40
Which buffer would be better able to hold a steady ph on the addition of strong acid, buffer 1 or buffer 2? explain. buffer 1: a solution containing 0.10 m nh4cl and 1 m nh3. buffer 2: a solution containing 1 m nh4cl and 0.10 m nh3
Answers: 1
Chemistry, 22.06.2019 14:30
For the reaction shown, find the limiting reactant for each of the following initial amounts of reactants. 4al(s)+3o2(g)→2al2o3(s) a) 1 molal, 1 mol o2 b) 4 molal, 2.6 mol o2 c) 16 molal, 13 mol o2 d) 7.4 molal, 6.5 mol o2
Answers: 3
Chemistry, 23.06.2019 05:00
How many atomic mass units are equal to 1.672×10−24 g of protons?
Answers: 3
You know the right answer?
When a strip of magnesium metal is touched to a flame, a bright light and a whitish substance are pr...
Questions
Social Studies, 14.07.2021 06:00
Chemistry, 14.07.2021 06:00
Mathematics, 14.07.2021 06:00
Social Studies, 14.07.2021 06:00
Mathematics, 14.07.2021 06:00
Mathematics, 14.07.2021 06:00
Chemistry, 14.07.2021 06:00
Mathematics, 14.07.2021 06:00
History, 14.07.2021 06:00
