What is the difference between a carbohydrate and a cholesteral

Answers

Answer 1

Answer:

cholesterol is a steroid of fat and the primary sterol synthesised by animals, which are by far its primary natural source. Some types of cholesterol are good and necessary while others are harmful, and having high levels of them in your blood can lead to heart disease and clog your arteries.

Carbohydrates are saccharides, or sugars. They give animals energy. They are also necessary in moderate quantities, but consuming large quantities of refined simple carbohydrates is what makes people overweight.

Answer 2

Answer:

Answer:

the letters

Explanation:

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Which model below would best describe the digestive system?a long hollow tube with openings at both ends
a small swimming pool
a candle stick
a water balloon tied at the top

Answers

if it were me I would use the long hollow tube with opening at the end

I'd say a long hollow tube with a hole at the end.
Hope this helps! :)

Which is and element
A) Salad
B) Sugar
C) Water
D) Potassium

Answers

Answer:

the only element above is potassium

Which of these is indication that a chemical reaction has occurred?A. Freezing of a substance

B. Melting of a substance

C. Boiling of a substance

D. Formation of a Preciptate

Answers

B.melting of a substance

I think it's B, the melting of a substance.

Determine from the balanced chemical reaction ifthe derived mole ratio is correct or incorrect.
4Zn + 10HNO3 + 4Zn(NO3)2 + N20 + 5H20

Help me please

Answers

Answer:

The equation is balanced

Explanation:

Before a equation can be said to be balanced the number of mole at the reaction side must be equal to number mole at the product side

Let's start with Zn at the reactant side 4 moles of Zn reacts and 4 moles of Zn was obtained from the product side which makes it balanced

Let's take HNO3

For H,10 moles react and 10 moles was obtained in the product side

For N,10 moles react and 8 moles was obtained initially and 2 moles was obtained as well which makes it 10 moles and it makes it balanced

For O,30 moles react and after calculating the total amount of O at the product side it was observed to be 30 which indicates that the equation is balanced...

The equation is absolutely well balanced

Which of the following is true about mixtures?A) Mixtures consist of two or more substances chemically combined.
B) Mixtures cannot be separated by physical means.
C) Mixtures consist of only one kind of atom.
D) Mixtures have to or more substances mixed together, but are not chemically combined.

Answers

The correct answer is D. Mixtures can be easily separated solutions cannot.

The molecular formula of a compound used for bleaching hair is H2O2. calculate (a) mass of this compound that would contain 2.5 moles (b) no of moles of this compound that would exactly weight 30 get.

Answers

The RFM (Relative Formula Mass) of the substance H2O2 is:
H2 = 1 x 2
= 2
O2 = 16 x 2
= 32

32 + 2 = 34

USE THIS FORMULA:

*Mass = Moles x RFM*

Part A:

Mass = Moles x RFM
     = 2.5 x 34
   = 85 g

(You can always rearrange this formula to suit the question)

Part B:

Moles = Mass/RFM
      = 30/34
   =0.8823529........ (Need a calculator haha)
   =0.88 (Rounded up to 2 decimal places)

I hope I helped, ask if you have any questions.

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