Need answers asap! will give brainliest : d 17) circle all of the chemical changes: bend dissolve react tarnish melt combust evaporate 18) circle all of the physical changes: rus, t burn, decompose ,boil ,tarnish dissolve ,break . bake , cut 19) put the following in order from least movement to most movement of particles: solid, liquid, gas

Electrons are extremely important to what area of technology? a) anti-aging research b) household product development c) electronics d) drug discovery

Amines are good nucleophiles, even though they are neutral molecules. how would the rate of an sn2 reaction between an amine and an alkyl halide be affected if the polarity of the solvent is increased? amines are good nucleophiles, even though they are neutral molecules. how would the rate of an reaction between an amine and an alkyl halide be affected if the polarity of the solvent is increased? because both reactants in the rate-limiting step are neutral, the reaction will be faster if the polarity of the solvent is increased. because both reactants in the rate-limiting step are neutral, the reaction will be slower if the polarity of the solvent is increased. because both reactants in the rate-limiting step are neutral, the reaction will occur at the same rate if the polarity of the solvent is increased. request answer

When the ionic compound nabr dissolves in water, br– ions are pulled into solution by the attraction between what two particles? a. the na+ and br– ions b. the na+ ion and the negative end of a water molecule c. the br– ion and the positive end of a water molecule d. the br– ion and the negative end of a water molecule