Wnich action forms a different chemical substance?

<

A

crushing a rock

B

burning a piece of wood

с

mixing salt and pepper

D

melting an ice cube

How many grams of calcium chloride are dissolved in 5.65 liters of a 0.11 m solution of calcium choride?

Describe what happens to a suspension if it is left to stand.

Find the number of moles in 3.70 x 10^-1 g of boron. 1) What is the molar mass of boron to three significant figures? 2) What is the conversion factor you will use to convert grams of boron to moles of boron?

Using what you have learned about scientific investigations, explain the statement: "One feature that makes scientific knowledge so strong and durable is that it is open to change."

Use the equation: 2 kclo3 2 kcl + 3 o2 to write the mole ratio needed to calculate: (a) moles of kcl produced from 3.5 moles of kclo3 mol kcl mol kclo3 (b) moles of kcl produced when 4.5 moles of o2 are produced. mol kcl mol o2

In the equation Mg (s) + O2 (g) → MgO (s) what is the reactant?

What ancient languages were used to develop the names of some elements?

What determines the color of the egg shell?

What is the purpose of adding alum in the water treatment process?

Science does not include beliefs or opinions theories laws conclusions