Junior Chem
Which particle has a negative charge?
Electron
In mass spectrometry, what does the x-axis represent?
m/z (mass-to-charge ratio)
What is the pH of a neutral solution at 25°C?
7
Which movie franchise features Darth Vader?
Star Wars
What is my favourite colour?
Pink!
An atom has 17 protons and 18 electrons. What is its overall charge?
-1
A mass spectrum has a molecular ion peak at m/z = 58. What is the molecular mass of the molecule?
58 g mol⁻¹
Is a solution with pH 3 acidic, neutral or basic?
Acidic
Which artist realised the song Espresso?
Sabrina Carpenter
True of False: I have never broken a bone.
False
What type of bonding occurs in sodium chloride between Na and Cl?
Ionic
A strong, broad absorption around 3200–3600 cm⁻¹ is characteristic of which functional group?
O–H
Which is the stronger acid: a solution with pH 2 or pH 5?
pH 2
Which actor has appeared in Suicide Squad and The Wolf of Wall Street?
Margot Robbie
Which statement is false:
A. I have been to 12 countries
B. I have owned 4 cars
C. I have lived in >10 houses
B. I have owned 3 cars
Element X has an electron configuration of 2,8,1. What group is it in, and what ion is it most likely to form?
Group 1, X⁺
Two compounds have the same molecular mass. Their IR spectra are different. What does this tell you?
They could be structural isomers/different functional groups
What is a monoprotic, diprotic and triprotic acid? Define one and give an example.
Monoprotic: can donate 1 H⁺ — e.g. HCl
Diprotic: can donate 2 H⁺ — e.g. H₂SO₄
Triprotic: can donate 3 H⁺ — e.g. H₃PO₄
Which artist became the youngest person to win Album of the Year at the Grammys?
Billie Eilish
How many times have I listened to my top song on Spotify?
356 times
Two elements have atomic numbers 12 and 17. Predict the formula of the compound they form and explain the type of bonding.
MgCl₂, ionic bonding
A compound has a molecular ion peak at m/z 46. Its IR spectrum shows a broad absorption around 3200–3600 cm⁻¹. What is the most likely compound?
Ethanol (C₂H₅OH)
Predict the products of the reaction between sulfuric acid (H₂SO₄) and sodium hydroxide (NaOH):
H₂SO₄ + NaOH →
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
Guess the movie from the emojis: 🧑🚀 🪐 🕳️ ⏳ 👨👧 🌽 🚀 🌀
Interstellar
How many photos are currently in my camera roll?
7,371