SGC-Chem Test 2 SP2 - εξέταση
A) It is composed of electrons and neutrons B) It is composed of protons and neutrons C) It is composed of protons only D) It is composed of protons and electrons
A) + B) 0 C) -
A) have an equal number of neutrons and protons. B) have an equal number of electrons and protons. C) have an equal number of charged and noncharged particles. D) have neutrons in their nuclei.
A) digesting food B) burning wood C) cooking eggs D) breaking a pencil
A) Atomic Number B) Atomic Mass C) Discovery Date D) Alphabetical Order
A) Protons and Neutrons B) Protons C) Neutrons D) Valence Electrons
A) color B) density C) shape D) pH
A) eight neutrons in its nucleus. B) a total of eight neutrons and electrons. C) eight protons in its nucleus. D) a total of eight protons and neutrons.
A) protons plus the number of neutrons. B) protons plus the number of electrons. C) neutrons. D) protons.
A) They are usually gases. B) They are located in the left-most column of the periodic table. C) They form negative ions with a -1 charge. D) They are extremely nonreactive.
A) They are extremely rare in nature. B) a basically nonreactive. C) They form compounds with very bright colors. D) They are highly reactive with both metals and nonmetals.
A) are nonreactive B) have only 1 valence electron C) are all metals D) exist in all three states of matter in normal conditions
A) On the right side. B) In the bottom rows. C) On the left-most side. D) In the middle column of the periodic table.
A) color; smell B) number; mass C) location; ionization D) mass;number
A) 3 neutrons B) 6 neutrons C) 12 neutrons D) 8 neutrons
A) Noble Gases B) Alkaline Metals C) Alkaline Earth D) Halogens
A) Noble Gases B) Akali C) Alkaline Earth D) Halogens
A) Noble Gases B) Alkaline Earth C) Alkali D) Halogens
A) Alkali B) Noble Gases C) Halogens D) Alkaline Earth
A) 4 B) 3 C) 2 D) 5
A) nonmetals B) metals C) metalloids
A) Einstein B) Ms. Watson C) Mendleev D) Mosely
A) According to atomic mass B) by date discovered C) according to atomic number D) alphabetically
A) Atomic Mass-Atomic Number B) Atomic Mass C) Atomic Number-Atomic Mass D) Atomic Number
A) Atomic Mass B) Atomic Number C) Atomic Mass-Atomic Number D) Atomic Number-Atomic mass
A) electrons B) neutrons C) protons D) nucleus
A) reactivity B) flammability C) pH D) color
A) density B) pH C) shape D) texture
A) breaking B) adding dye C) crushing D) burning
A) burning B) rusting C) breaking D) precipitate forming
A) can only be observed by changing the substance B) only can be seen in a few elements C) can be observed with senses D) vary within the same element
A) vary within the same element B) cn only be observed by changing the substance C) can be observes with the senses D) only can be observed in a few elements
A) chemical B) physical
A) physical B) chemical
A) not enough information B) it will sink C) it will float
A) kelvin B) second C) meters D) liters
A) grams B) meters C) hours D) kilograms
A) nethier accurate or precise B) accurate C) both accurate and precise D) precise
A) 1/100 B) 100 C) 1/1,000 D) 1,000
A) constant B) control C) dependent D) independent
A) growth B) length of study C) fertilizer D) strawberries
A) 0.0025m B) 2,500m
A) 1.65g B) 16.5g
A) 9.470x10-2 B) 9.470x102
A) 4.2x103 B) 4.2x10-3
A) 0.0000875 B) 875,000
A) 63,400 B) 0.00634
A) control B) independent C) constant D) dependent
A) graduated cylinder B) tongs C) stirring rod D) beaker
A) 10 B) 0 C) 13 D) 16
A) 35 B) 17 C) 18 D) 19
A) 14 B) 12 C) 10 D) 26
A) 8 B) 2 C) 10 D) 18
A) 115 amu B) 0.57 amu C) 57 amu D) 5.7 amu
A) 2 B) 3 C) 4 D) 1
A) 67.2 mol B) 2 mol C) 0.5 mol D) 89.6 mol
A) 5.8x1022 atoms B) 2.107x1024 atoms C) 21.07 atoms D) 1.72x1023 atoms
A) 12,144ft B) 2,295ft
A) 6.75kg B) 33.3kg
A) Dalton B) Bohr C) Rutherford D) Thomson
A) Chadwick B) Democritus C) Thomson D) Rutherford
A) Bohr B) Rutherford C) Shrodinger and Heisenburg D) Thomson 
A) Rutherford B) Thomson C) Dalton D) Bohr
A) Atoms of the same element are exactly alike. B) Atoms combine to form compounds in simple whole number ratios. C) All matter is made of atoms.
A) Rutherford B) Chadwick C) Dalton D) Bohr
A) Electron number never changes. B) The mass of protons and neutrons are much smaller than the mass of the electron. C) Electrons are positively charged. D) The mass of electrons is much smaller than the mass of protons and neutrons.
A) negative charge B) smaller mass C) positive charge D) larger mass
A) electrons B) neutrons C) protons D) positrons
A) 72g/ml B) 1.33g/ml C) 3g/ml D) 0.33g/ml
A) 17.5g B) 16g C) 0.094g D) 10.7g |
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