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2 years ago

What role do guanacos play in the Andes Mountains ecosystem?.

1 answer:

5 0

Grasses and plants are producers, guanacos are herbivores and are primary consumers and pumas are predators and secondary consumers

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____________ are compounds that contain a carbon-carbon triple bond.

Ganezh [65]

Answer:

Alkynes are compounds that contain a carbon-carbon triple bond.

Explanation:

The simplest organic compounds are formed excluseively by carbon and hydrogen. They are named hydrocarbons.

There are 3 main types of hydrocarbons, namely alkanes, alkenes and alkynes.

Alkanes posses only single bonds and have general formula Cₙ H₂ₙ ₊ ₂. E.g.: CH₃ - CH₃ (ethane).

Alkenes have one or more double bonds between pairs of carbon atoms. E.g.: CH₃ - CH = CH₂ (propene).

Alkynes contain one or more triple bonds between pairs of carbon atoms. E.g.: CH ≡ CH (ethyne or acethylene).

Both alkenes and alkynes are named unsaturated hydrocarbons, because they have less hydrogen atoms than they could (if they only hade single bonds), while alkanes are saturated hydrocarbons.

4 0

3 years ago

Which type of radiation detector produces bright flashes of light when exposed to radiaton

Virty [35]

The Geiger counter creates noise, the moderating rod is used in nuclear reactions and is not used to detect radiation, and the film badge only changes from one solid color to another

scintillation counter

7 0

3 years ago

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Will a double replacement reaction take place if a solution of sodium hydrogen carbonate is added to a solution of sodium chlori

VARVARA [1.3K]

Answer:

A double replacement reaction  do not take place if a solution of sodium hydrogen carbonate is added to a solution of sodium chloride.

NO reaction occur.

Explanation:

Double replacement Reaction : A reaction in which positive and negative ions of two different compound exchange to form new compounds.

This is also called metathesis reaction.

For Example :

$Na_{2}SO_{4} + SrCl_{2}\rightarrow 2NaCl + SrSO_{4}$

Here Na+ and Sr2+ has exchanged

Cl- and SO4(2-) has exchanged their places.

So , Requirement of Double displacement reaction is :

Their should be salts of different cation and anion

$NaHCO_{3}$ = sodium hydrogen carbonate =Na+ cation

and HCO3 - anion

NaCl = Sodium Chloride = Na+ cation and Cl- anion

In both the reacts the cation is : Na+

So No-exchange of ions occur .

No- double displacement reaction.

The reality is , this reaction can't occur at all. It can neither be acid-base nor Redox Reaction

So ,

$NaCl + NaHCO_{3}\rightarrow No\ Reaction$

7 0

2 years ago

326L

dalvyx [7]

Answer:

Final number of moles = 0.675 mol

Mass = 2.7 g

Explanation:

Given data:

Initial volume of gas = 2.00 L

Final volume of gas = 2.70 L

Initial number of moles = 0.500 mol

Final number of moles = ?

Solution:

Formula:

V₁/n₁ = V₂/n₂

V₁ = Initial volume

n₁ = Initial number of moles

V₂ = Final volume of gas

n₂ = Final number of moles

Now we will put the values in formula.

2.00 L /0.500 mol = 2.70 L / n₂

n₂ = 2.70 L× 0.500 mol /2.00 L

n₂ = 1.35 L.mol / 2.00 L

n₂ = 0.675 mol

Grams of helium added = ?

Solution:

Mass = number of moles × molar mass

Mass = 0.675 mol× 4 g/mol

Mass = 2.7 g

6 0

3 years ago

Why do polar bears have a thick layer of fat?

mart [117]

Answer:

It is the second option to stay warm.

Explanation:

7 0

3 years ago

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