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aniked [119]
3 years ago
9

Which statement describes an interaction between the biosphere

Chemistry
2 answers:
77julia77 [94]3 years ago
8 0

The answer to you question is. It is the part of earth that contains living organisms so D

Alona [7]3 years ago
6 0
I’d go with A, only one that kind of makes sense
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Which best describes a heterogeneous mixture? 0 A table salt and water O B. alcohol and water O C. oil and vinegar O D. hot tea
Oksi-84 [34.3K]

Answer:

oil and vinegar

the rest would mix well so you can't determine the individual components

Explanation:

6 0
3 years ago
A reaction of a hydrocarbon, in which carbon dioxide and water are produced, is classified as a
klasskru [66]
This is a combustion reaction. Any reaction in which a hydrocarbon decomposes into carbon dioxide and water is classified as combustion. The energy used for the decomposition usually comes from intense heat, which is why combustion of a hydrocarbon almost always is associated with a source of fire.
5 0
4 years ago
2) Using the following equation:
Ganezh [65]

the answer is 133

because thats how the water is

6 0
3 years ago
There are 3.0 g of NO and 3.0 g of CO reacting. what is the limiting reactant ?
xxTIMURxx [149]

Answer:

NO will be the limiting reagent.

Explanation:

The balanced equation is:

2 NO + 2 CO → N₂ + 2 CO₂

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

  • NO: 2 moles
  • CO: 2 moles
  • N₂: 1 mole
  • CO₂: 2 moles

Being the molar mass of each compound:

  • NO: 30 g/mole
  • CO: 28 g/mole
  • N₂: 28 g/mole
  • CO₂: 44 g/mole

Then by stoichiometry the following quantities of mass participate in each reaction:

  • NO: 2 moles* 30 g/mole= 60 g
  • CO: 2 moles* 28 g/mole= 56 g
  • N₂: 1 mole* 28 g/mole= 28 g
  • CO₂: 2 moles* 44 g/mole= 88 g

The limiting reagent is one that is consumed first in its entirety, determining the amount of product in the reaction. When the limiting reagent is finished, the chemical reaction will stop.

To determine the limiting reagent, you can use a simple rule of three as follows: If 56 grams of CO react with 60 grams of NO, 3 grams of CO react with how much mass of NO?

mass of NO=\frac{3 grams of CO*60 grams of NO}{56 grams of CO}

mass of NO= 3.21 grams

But 3.21 grams of NO are not available, 3 grams are available. Since you have less moles than you need to react with 3 grams of CO, <u><em>NO will be the limiting reagent. </em></u>

<u><em></em></u>

4 0
3 years ago
When 1.5 grams of magnesium burns, how many grams of magnesium oxide will be formed?
SashulF [63]
The balanced chemical reaction for this would be written as:

2Mg + O2 = 2MgO

We use this reaction and the amount of the reactant given to calculate for the amount of magnesium oxide that is produced. We do as follows:

1.5 g Mg (1 mol / 24.31 g) ( 2 mol MgO / 2 mol Mg ) (40.30 g /1 mol ) = 2.49 g MgO produced
6 0
3 years ago
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