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