ayohana67Yohana ayohana67Yohana
  • 23-03-2017
  • Physics
contestada

Consider burning paper and making a pie. Why would these actions be classified as chemical changes?

Respuesta :

CommanderMAM
CommanderMAM CommanderMAM
  • 09-09-2018

they are irreversible (you can't unburn paper) and affect the chemical composition of the object (when paper burns, it transforms the nearby oxygen into carbon dioxide using the carbon in the paper)

Answer Link

Otras preguntas

Can someone help with number 4 please? Due in 15 mins!!
write a program that keeps taking integers until the user enters in python
A math class consists of 25 students, 15 male and 10 female. Three students are selected at random to participate in a probability experiment. Compute the proba
on average, Jonny can pick 2/3 of the ripe apples on an apple tree in 1/2 an hour .At this rate, how long will it take him to pick all of the ripe apples on his
Write an expression for the area of the square below. 4x + 2 A. 8x2 + 16x + 4 B. 16x2 + 16x + 4 C. 8x + 4 D. 16x2 + 6x + 4 Help
Consider a wall clock. In degrees, how far does the minute hand move in 5 minutes? - 5 degrees - 30 degrees - 6 degrees - 1 degree
Cho biểu thức : A=(√x+1)/(√x-2) +(2√x)/(√x+2 )+(2+5√x)/(4-x) a.Rút gọn A b.Tính giá trị của A khi x=2 c.Tính giá trị của A khi X-5√x+6=0
1/3(3x-6)=2x please help
[tex]\frac{x+4}{2} -\frac{3}{x-3} =1[/tex] Quadratics null factor the given answer is x= 4,−3 but I don't know how to work it out
the total population of a village is 3540 out of which 2065 are male find the ratio of males to female​