B20 OLIVA PETA 2.3

1234567891011121314151617181920
Across
  1. 1. it is the amount space occupied by an object.
  2. 4. it is the average mass of a single atom in amu.
  3. 5. it is defined as the measurement system used in many countries including the United States using feet, pounds and seconds.
  4. 8. it is the mass of a given chemical element or chemical compound (g) divided by the amount of substance (mol).
  5. 9. consists of the chemical symbols for the constituent elements followed by numeric subscripts
  6. 10. It is the ratio of the mass of a substance to the volume occupied by the mass of an object.
  7. 11. What is the formula classification of Acetaldehyde (C2H4O) ?
  8. 12. it is used by the experts to pertain to the units of other particles of matter such as molecules, ions, electrons, and formula units of ionic substances.
  9. 13. is the sum of all atomic weights of an atom/element present In a compound.
  10. 15. it is a material that contains 2 or more different kinds of atoms.
  11. 18. it is a measurement of how much matter is in an object.
  12. 19. Is the Italian Physicist who proposed the number in which contains the number of atoms in a mole.
  13. 20. it is defined as the percentage by mass of each element present in a compound or chemistry product.
Down
  1. 2. it is the simplest positive integer ratio of atoms present in a compound.
  2. 3. it is a system of measurement that uses the meter, liter, and gram as base units of length, capacity, and weight. Also known as the “systematic method”.
  3. 6. in the first step of calculating the molar mass of an element, we identify the given element and its chemical _______.
  4. 7. is a pure substance that is made from a single type of atom.
  5. 14. In SI Base Units, what is the Quantity of the unit – second?
  6. 16. it is a quantity used to measure how far an object is from there reference point.
  7. 17. it is a measure of the intensity of heat or how hot or cold a system or an object is.