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Snezhnost [94]
3 years ago
13

Which type of substance is made of only one kind of matter and has definite properties?

Chemistry
1 answer:
aivan3 [116]3 years ago
3 0

A pure chemical substance

Explanation:

A pure substance is any substance made up of only one kind of matter and has definite properties.

Matter is anything that has weight and occupies space

On a broad basis, matter can be categorized as pure or distinct substances and impure substances or mixtures.

Pure substances have the following properties;

  • All parts of a pure substance remains the same throughout i.e homogeneous.
  • Their composition is definite
  • They cannot easily be broken or separated down into simpler substances by physical means.

They have a unique set of chemical properties.

Pure substances are elements and compounds.

learn more:

Heterogeneous mixtures brainly.com/question/1446244

#learnwithBrainly

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Through hemoglobin transport in blood, material exchange is carried out on the alveolar membrane.
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3 years ago
PLEASE HELP
swat32

Answer:

1461.7 g of AgI

Explanation:

We'll begin by writing the balanced equation for the reaction. This is given below:

CaI₂ + 2AgNO₃ —> 2AgI + Ca(NO₃)₂

From the balanced equation above,

1 mole of CaI₂ reacted to produce 2 moles of AgI.

Next, we shall determine the number of mole AgI produced by the reaction of 3.11 moles of CaI₂. This can be obtained as follow:

From the balanced equation above,

1 mole of CaI₂ reacted to produce 2 moles of AgI.

Therefore, 3.11 moles of CaI₂ will react to produce = 3.11 × 2 = 6.22 moles of AgI

Finally, we shall determine the mass of 6.22 moles of AgI. This can be obtained as follow:

Mole of AgI = 6.22 moles

Molar mass of AgI = 108 + 127

= 235 g/mol

Mass of AgI =?

Mass = mole × molar mass

Mass of AgI = 6.22 × 235

Mass of AgI = 1461.7 g

Therefore, 1461.7 g of AgI were obtained from the reaction.

5 0
3 years ago
6. Which of the following is an electrical hazard?
Lorico [155]
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3 0
2 years ago
The basic principle in balancing a chemical equation is to ______. hints
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Calculate the percentage by mass of the indicated element in the following compounds. Hydrogen in ascorbic acid, HC6H7O6, also k
Scorpion4ik [409]

Answer: The mass percent of hydrogen in ascorbic acid is 4.5 %

Explanation:

In C_6H_8O_6, there are 6 carbon atoms, 8 hydrogen atoms and 6 oxygen atoms.

To calculate the mass percent of element in a given compound, we use the formula:

\text{Mass percent of hydrogen}=\frac{\text{Mass of hydrogen}}{\text{Molar mass of ascorbic acid}}\times 100

Mass of hydrogen = 8\times 1g/mol=8g

Molar Mass of ascorbic acid =6\times 12g/mol+8\times 1g/mol+6\times 16g/mol=176g

Putting values in above equation, we get:

\text{Mass percent of hydrogen}=\frac{8g}{176}\times 100=4.5\%

Hence, the mass percent of of hydrogen in ascorbic acid is 4.5 %.

8 0
3 years ago
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