skajdasz1222 skajdasz1222

24-05-2018
Chemistry

contestada

Is it physical change or chemical change when you smooth a wood chair with sandpaper?

Respuesta :

KyngOyinda KyngOyinda

02-06-2018

It should be a chemical change

Answer Link

Otras preguntas

a b. What causes turbines to rotate in a hydroelectric power plant? (1 mark)

The first shots of the American Revolution took place where in 1775? A. Lexington B Boston C. Providence

Find the solution for the inequality 22−3y>7.

how was the assembly an example of direct democracy

solve each inequality below. Graph the solution on a number line 14<2(x+3)

a) a = 12, b = 16, c = ? b) a = 15, b = ?, c = 18 c) a = ?, b = 6, c = 15 d) a = 4.1, b = 3.3, c = ? e) a = ?, b = 6.5, c = 12.2

A 20 foot ladder leans against the a house forming a 75° angle with the house. Exactly how far is the base of the ladder from the house?

(x + 4)(3x + 2) = ____________ 2. (3x – 1)(2x – 5) = ____________ 3. (5x + 2)(2x + 5) = ____________ 4. (4x – 1)(2x + 7) = ____________ 5. (2x + 6)(4x + 8) = _

The load is 200g and is 5' away from the fulcrum, what is the mechanical advantage and how many newtons of force needed to lift the load?

X+2 is a factor of x^3- kx^2 +3x+7k. Find the value of k.