PLS I NEED HELP ON NUMBER 4 Hydrogen chloride (HCl) is an acid called hydrochloric acid. It is extremely dangerous and proper safety equipment is required. Sodium hydroxide is a dangerous base. When sodium hydroxide reacts with hydrochloric acid, sodium chloride and water are produced. In addition, energy is released as a result of the reaction.

What type of chemical reaction has taken place?
Double Replacement and Neutralization Reaction

Is this reaction exothermic or endothermic?
Exothermic

Based on your answers to question 1 and 2, write the balanced chemical reaction.
NaOH+HCl= NaCl+H2O

4. At the conclusion of the reaction, there are 95 grams of products. How many grams of reactants must have been used?

What is the mass of 8 moles of sodium atoms

After watching the video "zinc strip in copper nitrate solution", and reading the instructions, click on the link labeled "start" just below the drawing of the pencil tip. follow the direction to complete the 3x3 grid. answer the below questions for the portion of the activity in which sn(s) is placed in agno3(aq)

Nconcentration refers to the molar concentration of an ion in solution. it may be identical to, or greater or less than, the molar concentration of the compound containing the ion that was used to make the solution. for soluble salts, the molarity of a particular ion is equal to the molarity of that compound times the subscript for that ion. for example, 1 m of alcl3 is 1 m in al3+ and 3 m in cl−. 1 m of (nh4)2so4 is 2 m in nh4+ and 1 m in so42−. part a what is the concentration of k+ in 0.15 m of k2s? view available hint(s) nothing m m part b if cacl2 is dissolved in water, what can be said about the concentration of the ca2+ ion? view available hint(s) if is dissolved in water, what can be said about the concentration of the ion? it has the same concentration as the cl− ion. its concentration is half that of the cl− ion. its concentration is twice that of the cl− ion. its concentration is one-third that of the cl− ion. part c a scientist wants to make a solution of tribasic sodium phosphate, na3po4, for a laboratory experiment. how many grams of na3po4 will be needed to produce 550 ml of a solution that has a concentration of na+ ions of 0.700 m ? express your answer numerically in grams. view available hint(s) mass of na3po4 n a 3 p o 4 = nothing g provide feedback