Lembaran kerja Kimia untuk peperiksaan kemasukan kejururawatan dengan jawapan

Yang manakah ialah perubahan kimia?

1. AKaca pecah
2. BKayu terbakar
3. CGula larut dalam teh
4. DAis mencair

What is absolute zero?

1. A0 °F, the temperature of a salt and ice mixture
2. B0 °C, the point at which pure water freezes into ice
3. C−100 °C, the coldest temperature on Earth
4. D0 K, about −273 °C, the lowest possible temperature

Zarah manakah dalam atom yang bercas positif?

1. AFoton
2. BElektron
3. CProton
4. DNeutron

Atom klorin-37 mempunyai 17 proton. Berapakah bilangan neutronnya?

1. A54
2. B17
3. C20
4. D37

Which element has the most metallic character?

1. ACaesium (Cs)
2. BChlorine (Cl)
3. CSodium (Na)
4. DAluminium (Al)

What is the oxidation number of an element in its uncombined (elemental) form, such as Fe or O₂?

1. A0
2. BIt equals the group number
3. C+1
4. D−1

Which statement correctly distinguishes a scientific law from a scientific theory?

1. AA theory becomes a law once it is proved
2. BA law describes what happens; a theory explains why it happens
3. CLaws apply only to chemistry, theories only to biology
4. DA law is only a guess, while a theory is a proven fact

Why is it easier to remove the outer electron from a potassium atom than from a lithium atom?

1. ALithium has more electron shells than potassium
2. BPotassium's outer electron is in a full shell
3. CPotassium's outer electron is farther from the nucleus and more shielded by inner electrons
4. DPotassium has fewer protons, so its nucleus pulls much more weakly on every electron