Lembaran kerja Kimia untuk peperiksaan kemasukan kejururawatan dengan jawapan

What is a cation?

1. AA negatively charged ion
2. BA molecule with no charge
3. CA neutral atom
4. DA positively charged ion

What should a student always wear to protect the eyes when working with chemicals?

1. ASafety goggles
2. BReading glasses
3. CSunglasses
4. DContact lenses

What do the letters STP stand for in gas chemistry?

1. AStandard time and pressure
2. BSpecific temperature and particles
3. CStable temperature point
4. DStandard temperature and pressure

Apabila gas dipanaskan dalam bekas tegar yang tertutup, apakah yang berlaku pada tekanannya?

1. AIa jatuh kepada sifar
2. BIa kekal sama
3. CIa meningkat
4. DIa berkurang

Berapakah elektron valens (petala luar) yang dimiliki atom oksigen?

1. A6
2. B16
3. C8
4. D2

Why does keeping food in a refrigerator slow down spoilage?

1. ALower temperatures raise the activation energy of every reaction
2. BLower temperatures slow down chemical and microbial reactions
3. CCold air contains no oxygen
4. DCold temperatures add preservatives to the food

In Rutherford's gold foil experiment, most alpha particles passed straight through the foil but a few bounced back. What did this show?

1. AAn atom is mostly empty space with a small, dense, positive nucleus
2. BElectrons move in fixed circular orbits
3. CAtoms are solid, indivisible spheres
4. DElectrons are spread evenly through a positive "pudding"

Hydrogen peroxide fizzes when poured on a cut because an enzyme in blood breaks it down. What gas is produced, and what type of reaction is it?

1. AOxygen, in a decomposition reaction
2. BChlorine, in a synthesis reaction
3. CHydrogen, in a single replacement reaction
4. DCarbon dioxide, in a combustion reaction