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