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2 years ago

An apple pudding is prepared by combining apples, sugar, butter, and lemon juice. To which category does it belong?

2 answers:

8 0

The answer is B) Mixture. Compound is a substance with a fixed ratio of atoms, Like Fe2O3, all the pure compounds of Fe2O3 will have the same composition: 2 parts of element Fe and 3 parts of element O. Mixture is not homogeneous, this is its composition is not uniform. As you can see two different pies will have different compositions, even though you try that they are equal.

exis [7]2 years ago

3 0

B)mixture they need to be mixed

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Elements that are generally shiny when smooth and clean.

Verdich [7]

Metals are elements that are generally shiny when smooth and clean

5 0

3 years ago

What type of chemical reaction is C6H6 + CI2 = C6H5CI + HCI

elixir [45]

for it to be balanced in this case would be " 4 C6H6 + 6 CI2 = 3 C6H5CI + 9 HCI" therefore it's be a Double Replacement

8 0

3 years ago

A gas has a volume of 240 mL and a pressure of 0.99 atm. If the pressure is decreased to 0.951 atm, what is the new volume of th

irakobra [83]

V2 = 250 ml

Explanation:

Given:

P1 = 0.99 atm. V1 = 240 ml

P2 = 0.951 atm. V2 = ?

We can use Boyle's law to solve for V2

P1V1 = P2V2

V2 = (P1/P2)V1

= (0.99 atm/0.951 atm)(240 ml)

= 250. ml

6 0

2 years ago

What is the economic importance of phosphorus in Canada or elsewhere in the world?

vladimir1956 [14]

white phosphorus is used in flares and explosives, so may be important in warfare, etc. Red phosphorus is used in matches (side of matches) and in fertilizers which are essential to growing plants. I don't know if that is economically important, but there are many ways that phosphorus benifit the economy. One downside on the economy is that phosphorus is one of the main ingredients in meth, which of course causes trouble for the economy ( law enforcement, medical, etc. )

6 0

3 years ago

How do I solve the following word problem: The half-life of Phosphorus - 32 is 14.3 days. It is used to study a plant's use of f

BaLLatris [955]

Half life is the time that it takes for half of the original value of some amount of a radioactive element to decay.

We have the following equation representing the half-life decay:

$A=A_o\times2^{(-\frac{t}{t_{half}})_{}_{}}$

A is the resulting amount after t time

Ao is the initial amount = 50 mg

t= Elapsed time

t half is the half-life of the substance = 14.3 days

We replace the know values into the equation to have an exponential decay function for a 50mg sample

$A=\text{ 50 }\times2^{\frac{-t}{14.3}}$

That would be the answer for a)

To know the P-32 remaining after 84 days we have to replace this value in the equation:

$\begin{gathered} A=\text{ 50 }\times2^{\frac{-84}{14.3}} \\ A=0.85\text{ mg} \end{gathered}$

So, after 84 days the P-32 remaining will be 0.85 mg

4 0

1 year ago