Answer:Step 1: Gather the Needed Materials (coffee Filter, Pencil, Beaker, Water Soluble Pen/marker, Water) Step 2: Cut a Strip of Filter Paper From the Coffee Filter and Using the Marker Draw a Thick Line Near the Bottom of the Filter Paper- About 1/4 Inch From the Bottom. Step 3: Allow the Water to Move Up the Paper for Approx. 5 Minutes and Then Remove the Strip From the Water Step 4: Students Should Identify the Individual Colors in the Chromatogram That Make Up the Markers Unique Mix of Ink. Step 5: Once Students Have Mastered the Technique Its Time to Put Their Skills to the Test in "The Case of the Celebrity Dog-napping" Step 7: Write the Ransom Note on a Piece of Filter Paper in One of the Suspect Inks.
Explanation: Chromatography is the physical separation of a mixture into its individual components. This lesson integrates mixtures, solutions & solubility into an activity where students will identify the solute & the solvent. Because chromatography can be used to separate the components of inks & dyes, students are able to identify the unique "recipe" that makes up the mixture of a specific brand of pen. After the students are taught the ink chromatography technique, the fun can continue with a mini forensic investigation, "The Case of the Celebrity Dog-napping".
hopes this helps
<span>Brass, which is made by melting copper and zinc together, is harder, stronger, morecorrosion resistant and has an attractive gold colour. It still keeps its anti-bacterial properties, which makes it a great material for door knobs, handrails and plumbing fittings. Copper has been used to make coins for centuries.</span>
Answer:
for number of neutrons it is mass number take away the atomic number
number of electron is the same as number of proton unless there is a charge like +2 it will have 2 less electron than the proton (atomic number ) number.
number of proton is the atomic number
Explanation:
hope it make sense:)
T<span>he average amount of energy produced by the motion of air molecules is called air temperature.</span>
Explanation:
A pH helps us to determine whether a solution is basic or acidic in nature.
If pH is less than 7 then the substance or solution is acidic in nature and if pH is more than 7 then the substance or solution is basic in nature.
Also, acids are sour in taste whereas bases are bitter.
Thus, we can conclude that the bottle whose label have fallen off contains an acid and the pH of this liquid is MOST likely less than 7.
