A) yes B) no
A) nitrogen B) helium C) argon
A) solute B) solvent C) suspension
A) solute B) solvent C) suspension
A) salt B) water C) alcohol D) oil
A) 78 % nitrogen B) 100 % radon C) 0.04 % carbon dioxide D) 21 % oxygen
A) baking soda, sugar, fructose B) mud, salt, coffee C) oxygen, carbon dioxide, water vapor
A) ionization B) dispersion C) dissociation D) polarization
A) ionic ; polar B) covalent ; ionic C) nonpolar; ionized
A) dissociation B) polarization C) dispersion
A) polar B) nonpolar C) ionic D) valence
A) dispersion B) dissociation C) ionization
A) dispersion B) polarization C) ionization
A) NH4+ B) H3O+ C) OH-
A) nonelectrolyte B) electrolyte
A) acid B) neutral C) base
A) decreases B) increases C) remains the same
A) decreases B) remains the same C) increases
A) hydraulic fluid B) transmission fluid C) gasoline D) antifreeze
A) decreases B) increases C) remains the same
A) homogeneous B) heterogeneous C) endothermic D) exothermic
A) exothermic B) homogeneous C) heterogeneous D) endothermic
A) it absorbs heat when the solute dissolves B) the freezing point changes C) it releases cold when the solute dissolves D) the boiling point changes
A) stirring the solutions B) the temperature of the solvent C) the color of the solute and solvent D) the surface area of the solute
A) cool off the solution B) heat up the solution C) add more sugar to the solution D) stir the solution
A) polar;covalent B) ionic; ionic C) nonpolar; polar D) covalent;nonpolar
A) the heat increases the solubility of gases B) greenhouse gases are produced C) hydrogen escapes the water D) dissolved gasses come out of solution
A) the pressure is suddenly reduced B) the water in the soda has a high freezing point C) the sugar in the soda makes the bubbles D) the temperature decreases
A) sulfuric acid B) lactic acid C) boric acid D) carbonic acid
A) nitric acid B) bubonic acid C) phosphoric acid D) hydrochloric acid
A) sweet B) sour C) bitter
A) it turns red B) it turns black C) it turns blue D) it turns yellow
A) OH- B) CO32- C) CH4 D) H3O+
A) sour B) sweet C) bitter
A) powdery B) slippery C) sticky
A) it turn pink B) it turns blue C) it turns white D) it turns red
A) phenolphthalein B) ammonium nitrate C) ethylene glycol D) sodium acetate
A) oxidation B) neutralization C) base reduction D) combustion
A) sugar and water B) rust and salt C) gas and water D) salt and water |