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