Trail mix
Explanation:
Trail mix is a heterogeneous mixture due to its composition.
It is made up of nuts, raisins, seeds, berries, chocolate,
- Heterogeneous mixtures are mixtures whose constituents are existing in at least two different phases.
- There are different types of heterogeneous mixtures.
- Examples are muddy-water, aerated drinks, solid particles suspended in air.
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Answer:
hey are the final link in the energy flow in a food chain or a food web. They are fungi and animals that feed on dead organic mattet.
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Answer:
0.0626 M
Explanation:
Equation of the reaction
CH3COOH(aq) + NaOH(aq) ---------> CH3COONa(aq) + H2O
Concentration of acid CA= ???
Concentration of base CB= 0.1943 M
Volume of acid VA= 10.0ml
Volume of base VB= 32.22 ml
Number of moles of acid NA= 1
Number of moles of base NB= 1
From
CA= CB VB NA/VA NB
Hence ;
CA= 0.1943 M × 32.22 ml × 1/10.0ml ×1
CA= 0.0626 M
<u>Answer:</u> The empirical formula for the given compound is
<u>Explanation:</u>
We are given:
Mass of beaker, = 204.35 g
Mass of beaker and lead before the reaction, = 214.71 g
Mass of beaker and lead chloride after the reaction, = 218.26 g
Mass of lead = = [214.71 - 204.35] = 10.36 g
Mass of chlorine = = [218.26 - 214.71] = 3.55 g
To formulate the empirical formula, we need to follow some steps:
- <u>Step 1:</u> Converting the given masses into moles.
Moles of Lead =
Moles of Chlorine =
- <u>Step 2:</u> Calculating the mole ratio of the given elements.
For the mole ratio, we divide each value of the moles by the smallest number of moles calculated which is 0.05 moles.
For Lead =
For Chlorine =
- <u>Step 3:</u> Taking the mole ratio as their subscripts.
The ratio of Pb : Cl = 1 : 2
Hence, the empirical formula for the given compound is