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A food Calorie (written with a capital C) equals which amount of energy?

1. A1 calorie
2. B1 kilojoule (1000 J)
3. C1 joule
4. D1 kilocalorie

What is plasma, as a state of matter?

1. AA very hot gas in which atoms have lost electrons and become ions
2. BA liquid that has been cooled below its freezing point
3. CA solid that conducts electricity
4. DThe liquid part of blood

Partikel mana yang hampir tidak bermassa dibandingkan partikel lain dalam atom?

1. AProton
2. BElektron
3. CNeutron
4. DInti secara keseluruhan

Vinegar contains acetic acid, CH₃COOH. Which functional group makes it an acid?

1. AThe hydroxyl group of an alcohol, –OH
2. BThe methyl group, –CH₃
3. CThe carboxyl group, –COOH
4. DThe amino group, –NH₂

What is 380 mmHg in atmospheres?

1. A2 atm
2. B380 atm
3. C0,38 atm
4. D0,5 atm

At STP (0 °C and 1 atm), what volume does 1 mole of an ideal gas occupy?

1. A22,4 L
2. B6,02 L
3. C1,0 L
4. D273 L

10 g suatu zat dilarutkan dalam air hingga menjadi 250 mL larutan. Berapa konsentrasinya dalam g/L?

1. A0,04 g/L
2. B25 g/L
3. C40 g/L
4. D2,5 g/L

A catalyst is added to an exothermic reaction. How does the energy diagram change?

1. AThe products end up at a lower energy, so more heat is released
2. BThe reaction becomes endothermic
3. CThe reactants start at a higher energy
4. DThe peak is lower, but the energy of reactants and products stays the same