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evablogger [386]
3 years ago
14

The flow of energy in an ecosystem starts with

Chemistry
1 answer:
levacccp [35]3 years ago
8 0
From the sun, through the photosynthetic organisms which includes; green plants and algae, then to herbivores to carnivores and decomposers. 

I hope this helps answer your question. <3
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Which description correctly characterizes the acidity or basicity of a solution? The higher the pH is, the more the hydroxide io
joja [24]

Answer:

The higher the pH is, the more the hydroxide ion concentration increases and the more basic the solution becomes.

Explanation:

  • When the pH of a solution is less than 7, then solution is called acidic and as the pH decreases the concentration of Hydronium ion increases.
  • When the pH is about 7, then the  solution is said to be neutral. On the other hand, when  the pH is greater than 7, the solution is is said to be basic and as the pH increases the concentration of Hydroxide ions increases.
  • Therefore, An acidic solution has a higher concentration of hydrogen ions compared to the concentration of hydroxide ions.
7 0
2 years ago
Read 2 more answers
One of the steps in the commercial process for converting ammonia to nitric acid is the conversion of NH3 to NO: 4NH3 (g) 5O2 (g
madreJ [45]

Answer:

O2 is the limiting reactant.

Explanation:

Step 1: Data given

Mass of NH3 = 2.00 grams

Mass of O2 = 2.50 grams

Molar mass NH3 = 17.03 g/mol

Molar mass O2 = 32 g/mol

Step 2: The balanced equation

4NH3(g) +  5O2 (g) → 4NO(g) +  6H2O (g)

Step 3: calculate moles NH3

Moles NH3 = mass NH3 / molar mass NH3

Moles NH3 = 2.00 grams / 17.03 g/mol

Moles NH3 = 0.117 moles

Step 4: Calculate moles O2

Moles O2 = mass / molar mass O2

Moles O2 = 2.50 grams / 32 g/mol

Moles O2 = 0.0781 moles

Step 5: Calculate the limiting reactant

For 4 moles NH3 we need 5 moles O2 to produce 4 moles NO and 6 moles H2O

O2 is the limiting reactant. It will completely be consumed. (0.0781 moles). NH3 is in excess. There will react 4/5 * 0.0781 moles =  0.0625 moles

There will remain 0.117 - 0.0625 = 0.0545 moles NH3

O2 is the limiting reactant.

8 0
3 years ago
A substance which melts/boils at a fixed temperature is a pure substance.<br><br> True<br> False
ololo11 [35]
True

when a substance is impure, it boils over a range of temperature rather than a specific temperature
3 0
3 years ago
Read 2 more answers
Chandra wants to know how many moles are contained in 150.0 g ccl4 (carbon tetrachloride). what quantity of ccl4 should she use
Fynjy0 [20]

The quantity of carbon tetrachloride, CCl₄ she will use to make her conversion is molar mass

<h3>Description of mole </h3>

The mole of a substance is related to it's mass and molar mass according to the following equation:

Mole = mass / molar mass

<h3>How to determine the mole of CCl₄</h3>
  • Mass of CCl₄ = 30 g
  • Molar mass of CCl₄ = 12 + (35.5×4) = 154 g/mol
  • Mole of CCl₄ =?

Mole = mass / molar mass

Mole of CCl₄ = 150 / 154

Mole of CCl₄ = 0.974 mole

Thus, we can see that the molar mass of CCl₄ is needed to obtain the number of mole.

Learn more about mole:

brainly.com/question/13314627

#SPJ4

8 0
2 years ago
What is one way that light differs from sound?
krek1111 [17]
The speed that they travel
6 0
3 years ago
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