| A | B |
|---|
| The study of substances containing carbon is? | organic chemistry |
| The branch of chemistry concerned wiht properties, changes, and relationships between energy and matter is? | physical chemistry |
| a physical property may be investigated by: melting ice? letting milk turn sour? allowing silver to tarnish? burning wood? | melting ice |
| Cheical Properties Include | changes that alter the identity of a substance |
| Which group contains only nonmetals? 1, 2, 13, 14,15,16, 17, 18? | 17 |
| Based on their location in the period table, oxygen and selenium have? | Similar properties |
| Which element has properties most similar to those of potassium? | magnesium? |
| Which is the most reactive out of Na, Xe, Ne, and Ar | Na |
| Boron and Antimony might be good elements to use as : semiconductors, fuels, construction metals or catalysts? | semiconductors |
| What is the atomic number for silicon | 14 |
| A neutral atom of sulfer contains how many electrons? | 16 |
| The most useful source of chemical information about the elements is? | Periodic table |
| A horizontal row of blocks in the periodic table is called? | A family |
| Elements in a group in the periodic table can he expected to have similar? | properties |
| A vertical column of blocks in the periodic table is called? | A group |
| The speed of an electromagnetic wave is equal to the produc t of its wavelength and its? | frequency |
| the elements that border the zig zag line in the period table are? | metalloids |
| mL represents? | milliliters |
| The symbol for units of length from larges to smallest are? | km, m, cm, mm |
| The unit m measures? | length |
| A liter is defined as? | 1000cm3 |
| A volume of a cubic centimeter is equivalent to? | a millimeter |
| The density of luminex is 1.20 g/cm3. The volume of a solid piece of luminex is 1.5 cm3. Find its mass | 1.8 grams |
| 10 millimeters is equal to ? | 1 centiliter |
| 5 centimeters is the same as ___ meters? | .05 meters |
| 5 centimeters is the same as ___ millimeters? | 50 mm |
| Write 7,200,000,000,000 in scientific notation | 7.2 x 10(12) |
| When 6.02 x 10(23) is multiplied by 3.0 x 10(20) the product is? | 1.81 x 10(44) |
| The result of dividing 10(9) by 10(5) is? | 10(4) |
| The law of conservation of mass follows the concept that? | atoms are indivisible |
| In oxides of carbon, such as CO, CO2, atoms combine in small whole-# ratios This evidences supports? | mulitple proportions |
| According to Daltons atomic theory, atoms: | Of each element are identical in size, mass, and other properties. |
| The principals of atomic theory recognized today were conceived by: | Dalton |
| Experiments with cathode rays led to the discovery of the: | electron |
| Milikan's experiments did what? | Measured the charge of the electron |
| Who discoved the nucleus by bombarding gold foil with positively charged particles, and noting that some particles were widely discovered? | Rutherford |
| Because a few positively charged particles bounced back from the foil, Rutherford concluded that such particles were? | Striking electrons |
| The mass of a neutron? | Is about the same as that of a proton |
| The smallest unit of an element that can exist either alone or in combination with other such particles of the same or different elements is the? | Atom |
| Isotopes of an element contain different numbers of? | Neutrons |
| The total number of protons and neutrons in the nucleus of an atomo is its? | Atomic Number |
| In determining the atomic mass unites, the standard is the? | C-12 atom |
| All atoms of the same element have the same? | Atomic number |
| The carbon-12 atom is assigned a relative mass of exactly? | 12 amu |
| An aluminum isotope consists of 13 protons, 13 electrons, and 14 neutron. It's mass number is? | 27 |
| The number of atoms in one mole of anything is? | 6.22 x 10(23) |
| The number of atoms in a mol of any pure substance is called? | Avogadro's Number |
| The mass of 2 moles of oxygen atoms(with atomic mass 16 amu) is? | 32 g |
| How many moles of atoms are in 44.97 g of cadmiun (atomic mass is 112.41)? | .4000 mol |
| A prospector find 77.05 g of silver (atomic mass 107.8682 amu) she has how many atoms? | 4.3 x 10 (23) |
