Answer:
that is all I know sorry hope that may help you :)
Explanation:
Indicator is a substance which shows different colors in acidic and basic medium. Indicators can be natural (derived from natural sources) or artificial ( man-made) for example :
*Litmus is an indicator. Acid turns blue litmus into red while base turns red litmus into blue
* Turmeric solution does not show change in color (remains yellow) in acidic solution and turns red in basic solution.
Answer:
7.5 g of hydrogen gas reacts with 50.0 g oxygen gas to form 57.5 g of water.
Explanation:
Here we have the check if the mass of the reactants is equal to the mass of the products.
Reactants
![7.5+50=57.5\ \text{g}](https://tex.z-dn.net/?f=7.5%2B50%3D57.5%5C%20%5Ctext%7Bg%7D)
Products
![57.5\ \text{g}](https://tex.z-dn.net/?f=57.5%5C%20%5Ctext%7Bg%7D)
The data is consistent with the law of conservation of matter.
Reactants
![50+243=293\ \text{g}](https://tex.z-dn.net/?f=50%2B243%3D293%5C%20%5Ctext%7Bg%7D)
Products
![206+97=303\ \text{g}](https://tex.z-dn.net/?f=206%2B97%3D303%5C%20%5Ctext%7Bg%7D)
The data is not consistent with the law of conservation of matter.
Reactant
![17.7+34.7=52.4\ \text{g}](https://tex.z-dn.net/?f=17.7%2B34.7%3D52.4%5C%20%5Ctext%7Bg%7D)
Products
![62.4\ \text{g}](https://tex.z-dn.net/?f=62.4%5C%20%5Ctext%7Bg%7D)
The data is not consistent with the law of conservation of matter.
Only the first data is consistent with the law of conservation of matter.
So to balance an equation, you need to get the same amount of each type of element on either side of the --> . So you pretty much are given the subscripts in the equations and you need to add coefficients (just normal numbers) in front of any formula that needs it, keeping anything balance.
![KCl_{3} + O_{2} -\ \textgreater \ KCl_{3}](https://tex.z-dn.net/?f=KCl_%7B3%7D%20%20%2B%20O_%7B2%7D%20%20-%5C%20%5Ctextgreater%20%5C%20%20KCl_%7B3%7D%20)
turns into
![2KCl_{3}+ 3O_{2} -> 2KCl_{3}](https://tex.z-dn.net/?f=2KCl_%7B3%7D%2B%203O_%7B2%7D%20-%3E%202KCl_%7B3%7D%20)
These coefficient numbers are the molar ratios, so 2 moles of KCl3 for every 3 moles of O2 so 1. 3:2
Then you can use these ratios of find out how many moles of one thing are needed if you are given the amount of another.
![\frac{moles of element 1}{cofficient 1} = \frac{moles of element 2}{cofficient 2}](https://tex.z-dn.net/?f=%20%5Cfrac%7Bmoles%20of%20element%201%7D%7Bcofficient%201%7D%20%20%3D%20%20%5Cfrac%7Bmoles%20of%20element%202%7D%7Bcofficient%202%7D%20)
and use cross multiplication to solve for whatever you don't know
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Answer:
When hydrogen reacts with chlorine, hydrogen chloride is formed. Hydrogen chloride is a gas, and has the formula HCl(g).
When hydrogen chloride dissolves in water, hydrochloric acid is formed. This has the same formula, but you can tell the difference because of the state symbol (aq), which stands for ‘aqueous’. The formula is written as HCl(aq).
Hydrogen chloride is made from molecules. The hydrogen atom and the chlorine atom are joined by a covalent bond. When hydrogen chloride forms hydrochloric acid, the molecules split into ions.
HCl(aq) → H+(aq) + Cl-(aq)
The H+ ions make this aqueous solution acidic. The solution also conducts electricity because it contains ions that are free to move.
However, when hydrogen chloride gas dissolves in a solvent called methylbenzene, the molecules do not split up. A solution of HCl in methylbenzene does not contain hydrogen ions, so it is not acidic. The solution also has a low electrical conductivity.