All categories

3 years ago

Is vinegar a compound, element, or mixture? Thanks a bunch! :))

2 answers:

6 0

Vinegar is a liquid mixture composed of acetic acid and water. It is produced by fermenting ethanol which causes bacteria to produce acetic acid as a byproduct.

xeze [42]3 years ago

5 0

Vinegar is a mixture of acetic acid and water

You might be interested in

15 points Discuss how cells differ from one another

Sladkaya [172]

Answer:

Cellular differentiation is the process in which a cell changes from one cell type to another. Usually, the cell changes to a more specialized type. Differentiation occurs numerous times during the development of a multicellular organism as it changes from a simple zygote to a complex system of tissues and cell types.

Explanation: from google

5 0

3 years ago

Anthony needs to make a solution with a concentration of 2.5m. He begins with 2.0 iters and a 8.0M solution. What final volume d

FrozenT [24]

Answer:

The final volume is 6.4 L.

Explanation:

Dilution is reducing the concentration of a chemical and is achieved by adding more solvent to the same amount of solute. In other words, dilution is the procedure that is followed to prepare a less concentrated solution from a more concentrated one, and it simply consists of adding more solvent.

In a dilution the amount of solute does not vary, and as only more volume (and mass) of solvent is being added, the concentration of the solute decreases.

In a dilution the expression is used:

Ci*Vi = Cf*Vf

where:

Ci: initial concentration
Vi: initial volume
Cf: final concentration
Vf: final volume

In this case:

Ci: 8 M
Vi: 2 L
Cf: 2.5 M
Vf: ?

Replacing:

8 M* 2 L= 2.5 M* Vf

Solving:

$Vf=\frac{8 M* 2 L}{2.5 M}$

Vf=6.4 L

The final volume is 6.4 L.

7 0

3 years ago

Each student in Ms. Major's class was given an unknown substance. Ms. Major gave her students a list, shown below, of substances

soldi70 [24.7K]

Answer;

Water 1.0 g/mL 100°C colorless liquid

Explanation:

thats the answer

7 0

4 years ago

Read 2 more answers

The molar absorptivity of Beta-carotene at 490 nm is 1.36 x 105 M-1cm-1. What is the concentration of a solution of Beta-caroten

finlep [7]

Answer:

The correct answer to the following question will be Option E (1.0 x 10⁻³ M).

Explanation:

The given values are:

$A\lambda =140$

$\varepsilon=1.36\times 10^5 \ M \ {cm^{-1}}$

L = 1 \ cm

As we know,

⇒ $A\lambda=\varepsilon CL$

On putting the given values in the above formula, we get

⇒ $140=1.36\times 10^5\times C\times 1$

⇒ $C=\frac{140}{1.36\times 10^5}$

⇒ $C=102.9\times 10^{-5} \ M$

So that option E is the right answer.

3 0

3 years ago

Which of these groups of metal would have the most similar properties?. a. Ag, Au, Cu, Zn. b. Cr, Fe, Co, Ni. c. Al, Si, P, S. d

serg [7]

The correct answer is letter (d.) Mg, Ca, Sr, Ba

These four elements are found in Group 2 of the periodic table, which are alkaline metals, therefore they have the very similar properties because of their 2 valence electrons, which makes them reactive.

3 0

3 years ago

Read 2 more answers