mateUL10 mateUL10

02-04-2017
Chemistry

contestada

Why does metal need to be extracted from an ore before it can be used?

Respuesta :

02-04-2017

Metal ore has other elements in it as well. Also sediment and stone might cover the ore. We don't want to have a phone with sediment on it do we? thus these few reasons are why.

Answer Link

Otras preguntas

How have voting amendments changed American society?

?the primary reason that the framers chose to unify the country was that

I am taking a 170 multiple choice exams and each exam has 10 questions and i spend 10 to 15 minutes to finish each exam, how long would that take me?

What effect does food color have on the amount of food fish eat? State the independent variable. State the dependent variable. Provide the hypothesis.

Define current assets. what basis is used for arranging individual items within the current assets section

The remove excess water, salts, uric acids, and chemicals from the blood

A woman has a taco stand. she found that her daily costs are approximated by upper c left parenthesis x right parenthesis equals x squared minus 40 x plus 660c(

Calculate the ΔHrxn for the following reaction:CH4 (g) + 2Cl2 (g) --> CH2Cl2 (g) + 2HCl (g)Use the following reaction and given ΔH's:CH4 (g) + Cl2 (g) -->

Find all possible value or value of in the quadratic equation 2n^2-7n+6=0

The sides of a polygon are 3, 5, 4, and 6. The shortest side of a similar polygon is 9. Find the ratio of their perimeters.