Answer :
<u>The test for ion :</u>
Procedure :
1) In a test tube, add 5-10 drops of aqueous solution of .
2) Add 1-2 ml of HCl solution and Barium chloride solution in the test tube.
The formation of white precipitate indicates the presence of ion.
The chemical reaction is,
The White precipitate of formed in this reaction.
3) Volume is the amount of space an object takes up.
6) Gallons and inches are customary units of measurement, while (grams, kilograms, meters, centimeter, milliliter) are metric units of measurements.
8) When using a thermometer, the liquid goes up in the tube when the temperature increases. The liquid goes down in the tube when the temperature decreases.
9) The instrument used to find the volume of a liquid is a graduated cylinder.
15) Units of measurement that can be used to measure mass are called grams and kilograms.
17) The temperature is measured in Fahrenheit in the customer system and Celsius in the metric system.
Answer:
Given the reactants 3NaOH + 4HCl how many molecules of NaOH are there?
Answer:
argon
For example, the K+ ion is isoelectronic with argon. Potassium has 19 electrons and 1 is in the outermost shell: a valence electron. If potassium is ionized and becomes a +1 cation, this is to say that it lost its single valence electron. This is favorable, because it gives potassium a noble gas configuration
Answer: nvm i do not know the answer to this i thought i did but i dont
Explanation: sorry about that