Hydrochloric acid and sodium hydroxide
HCl + NaOh ----> NaCl + H2O
Answer: endothermic
Explanation: Endothermic Reactions. A system of reactants that absorbs heat from the surroundings in an endothermic reaction has a positive (H), because the enthalpy of the products is higher than the enthalpy of the reactants of the system.
Energy, in a form of gamma rays, is <span>released when an electron and its antiparticle (positron) annihilate each other. </span>
Answer:
Which type of BAC test is more accurate :- Blood
Which type of BAC test can be administered more quickly and is more portable :- Breath
Which type of BAC test is used more often in the field :- Breath
I hope it helps.
Ans: The shielding effect explains why valence shell electrons are more easily removed from the atom. The nucleus can pull the valence shell in tighter when the attraction is strong and less tight when the attraction is weakened. The more shielding that occurs, the further the valence shell can spread out.