Across
- 1. An English unit of length, it is equal to 3 feet.
- 4. a system of measurement that succeeded the decimalised system based on the metre
- 9. Usually used as a dressing for salads, scientifically known as ethanoic/acetic acid, and has a chemical formula of CH3COOH
- 11. The ________ system is defined as the measurement system used in many countries including the United States using feet, pounds, and seconds
- 13. This formula gives the smallest whole number ratio of the atoms that are present in the compound.
- 14. It is a prefix attached to a base unit. Its decimal equivalent is 0.001.
- 15. The chemical element with an atomic number of 6, and is widely distributed forming organic compounds when combined with hydrogen, oxygen, etc.
- 17. Is a measure of the quantity on how long an object is from one end to another.
- 18. An English unit of mass and weight, it is equal to 454 grams (g).
- 19. Temperature scale named after a Swedish astronomer.
- 20. A Metric unit of mass and weight, it is equal to 1000 grams (g).
Down
- 2. He proposed that the number of units in one mole of any substance is equal to 6.022 X 10^23 atoms, molecules, and ions
- 3. Is an organic chemical compound. It is a simple alcohol with the chemical formula C ₂H ₆O.
- 5. Is a known as “systematic method” of converting units that are related to each other.
- 6. Is the mass of a single atom of a chemical element.
- 7. It is the ratio of the mass of a substance to the volume occupied by the mass of an object.
- 8. Temperature scale named after a German Physicist who invented the alcohol thermometer.
- 10. A scale of temperature beginning at absolute zero (-273.15°C or -459.67°F)
- 12. A unit intended to express the amount of a substance. It is said to be a unit to determine the amount of substance of matter.
- 16. Avogadro's 1st name
