A) CnH2n+1 B) CnH2n+2 C) CnH2n-2 D) CnH2n
A) Zinc B) Lead C) Gold D) Tin
A) Ba2O3 B) BaO C) Ba(OH)2 D) Ba2O
A) Mg(OH)2 B) Mg(OH)3 C) Mg(OH) D) Mg(OH)4
A) 2H2+O2→2H2O B) H2+O2→2H2O C) 2H2+2O2→2H2O D) H2+O2→H2O
A) Ca(OH)2+H2 B) CaOH C) CaO+H2 D) Ca2H2O
A) Analyzing biological tissue B) Define toxic chemicals C) Examine and identifying metals and metal based evidence D) Sequencing genetic material
A) Chemical reaction B) Chemical bonding C) Chemical change D) Chemical equations
A) 4,3,2 B) 2,3,2 C) 3,3,2 D) 2,2,2
A) DNA sample collection methods B) Reliability of test kits C) General acceptance of scientific evidence in court D) Ethics of genetic testing
A) Propene B) Propyne C) Ethene D) Butene
A) Ethanol B) Acetylene C) Methane D) Ethylene glycol
A) Nucleus B) Ribosome C) Mitochondrion only D) Cytoplasm
A) AlF3 B) AlF C) AlF4 D) AlF2
A) Use "-ous acid" suffix only B) Use "ate" suffix C) Use "hydro-" and add "-ic acid" D) Prefix "per-" is used
A) Copper (ll) sulfate Penta hydrate B) Copper (ll) sulfate hydrate C) Copper sulfate Penta hydrate D) Copper sulfate water complex
A) Double replacement reaction B) Decomposition reaction C) Combination reaction D) Single replacement reaction
A) Decomposition reaction B) Synthesis reaction C) Double replacement reaction D) Single replacement reaction
A) PCR B) RFLP C) Gel electrophoresis D) Sanger sequencing
A) 1 B) 4 C) 3 D) 2
A) Contain double bonds B) Highly reactive at room temperature C) Colorless, odorless, and tasteless D) Soluble in water
A) True B) False
A) 4 B) 3 C) 2 D) 1
A) Double replacement reaction B) Single replacement reaction C) Decomposition reaction D) Combination reaction
A) Plasma scanning B) Macro-etching C) Metal welding D) X-ray diffraction
A) NaCl B) CuSO4 5H2O C) H2SO4 D) CO2
A) Binary compounds containing two nonmetal B) Binary acids C) Binary compound containing a metal variable oxidation number and non metal D) Binary compound containing a metal (fixed oxidation number) and a non metal
A) NH2 B) NH4+ C) NH D) NH3
A) Sandpaper polishing B) Melting the surface C) Acid etching D) X-ray imaging
A) Two B) Four C) One D) Three
A) Sn+2AgNO2=Sn (NO2)2+2Ag B) 2KCIO=2KCl+3O2 C) 16Al+3S8=8 Al2S8 D) Pb(NO2)2+K2CrO=pbCrO4+2KNO3
A) Lead (lll) Bromide B) Lead Bromide (ll) C) Lead (ll) Bromide D) Lead Bromide (lll)
A) HCL+NAOH=NACL+H2O B) HcL+NaOH=NACL+HO C) HCl+Na (OH) =NaCl+H2O D) HCl+Na(OH)2=NaCl+H2O
A) Decomposition reaction B) Single replacement reaction C) Double replacement reaction D) Combination reaction
A) Used in perfumes B) Used in miner's lamps C) Used in behaverage carbonation D) Used as a refrigerant
A) Reactant B) Product
A) 1,2,1 B) 2,3,1 C) 2,1,2 D) 1,3,2 |