The answer to this would be a physical change. Physical changes are changes that affect the form of a chemical substance, but not the chemical composition itself. Hope this helped!
Silica is not an element. It is a compound made up of both silicon and oxygen.
Answer:
It forms a solution.
Explanation:
A pure substance is when only one type of atom or molecule is present. In this case the substance contains two different molecules; sugar and water, assuming sugar is all one type (e.g. glucose) and there are no contaminants in the water or sugar before combining the two.
Dissolving the sugar in the water makes a homogeneous mixture and once dissolved a solution is made by the combination of a solute (sugar) and solvent (water).
Hope this helps!!!!
Answer:
λ = 2.9 × 10⁻⁵ m
General Formulas and Concepts:
c = λν
- C = Speed of Light (3 × 10⁸ m/s)
- ν = frequency (Hz or 1/s⁻¹)
Explanation:
<u>Step 1: Define</u>
ν = 10.4 × 10¹² Hz
<u>Step 2: Solve for λ</u>
- Substitute: 3.0 × 10⁸ = λ(10.4 × 10¹² Hz)
- Divide both sides by ν: 0.000029 = λ
- Rewrite: λ = 2.9 × 10⁻⁵ m
<u>Step 3: Check</u>
<em>We are given 3 sig figs.</em>
Wavelength has only 2 sig figs.