Answer:
Chemical change
Explanation:
The beans you ate turned into a flammable gas some weird thing must have happened in your stomach to make it into gas
The mass of 2,301 grams of sodium in ounces is 0.0811757609 ounces.
The amount of sodium recommended by American heart association is 2301 mg. This limit should not be crossed in a day.
We have to convert Mass of sodium from mg to ounces.
We know,
1 ounce = 28.3459 grams.
We also know,
1 gram = 1000 milligrams.
So,
28.3459 grams = 28.3459 x 1000 milligrams.
28.3459 grams = 28345.9 milligrams.
1 ounce = 28345.9 mg.
1 mg = 1/28345.9 ounces
Weight of sodium 2301mg in ounces,
2301mg = 2301/28345.9 ounces
Dividing till last significant figure,
2301 mg = 0.0811757609 ounces.
Mass of sodium in ounces is 0.0811757609.
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Answer:
See explaination
Explanation:
Going by the clues that it is between Silver Flouride (AgF) and Sodium Fluoride (NaF) and since it is an aqueous solution , the 1 liter bottle is likely to be Sodium Chloride( NaCl). Going by the reaction,
AgF + NaCl= AgCl + NaF
Here, the color of AgCl is white, hence the solution cannot be AgCl.
Determination of NaCl
Determination of NaCl can be done by Mohr's Method or Volhard's method. But results in Volhard's method are more accurate . Its uses the method of back titration with Potassium Thiocynate which forms a AgCl precipitate . Prior to titration,excess AgNO3 ( The problem also has a clue that excess reagents are present in the lab ) is added to the NaCl solution so that all the Cl- ions react with Ag+. Fe3+ is then added as an indicator and the solution is titrated with KSCN to form a silver thiocyannite precipitate (AgSCN). Once all the silver has reacted, a slight excess of SCN- reacts with Fe3+ to form Fe(SCN)3 dark red complex. The concentration of Cl- is determined by subtracting the titer findings of Ag+ ions that reacted to form AgSCN from the Ag NO3 moles added to the solution. This is used because pH of the solution is acidic. If the pH of solution is basic, Mohr's method is used.
Reactions
Ag+ (aq)+ Cl-(aq) = AgCl(aq)
Ag+(aq) + SCN-(aq) = AgSCN(aq)
Fe3+(aq) + SCN-(aq) = [FeSCN]2- (aq)
The answer is surface tension. The water has an inward attraction because there are no molecules above it (I mean water, at least), and the legs of water bugs repel water, hence, they walk on water.
Hope this helps!
In a food chain we arrange the energy in the form of a pyramid.
The producers are on the base of pyramid and then consumers are towards peak.
in the given food chain grass is being eaten by grasshopper which are food of birds.
Grasshoppers are also eaten up by Hawks. so both brids and hawks are feeding upon grasshoppers thus the amount of energy transferred from the grass to the grasshopper is the same as the amount of energy transferred from the grasshopper to the bird.