1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
3241004551 [841]
3 years ago
13

The need for energy, gained by respiration and photosynthesis, is the driving force of the oxygen cycle. Please select the best

answer from the choices provided T F
Chemistry
2 answers:
eimsori [14]3 years ago
8 0

Answer: True

Explanation: Oxygen cycle is the process by which oxygen is released into the atmosphere by photosynthesis and is used by aerobic organisms while the carbon dioxide is released as a by product of respiration. This carbon dioxide is used in photosynthesis for production of glucose.

6CO_2+6H_2O\overset{sunlight}\rightarrow C_6H_{12}O_6+6O_2

Hence, for oxygen to remain in the atmosphere, it has to circulate through various forms of nature and this circulation of oxygen is called as oxygen cycle.

MariettaO [177]3 years ago
5 0
The answer is T - true.
You might be interested in
using the equaation 2h2+o2-->2h2o if 10.0g of hydrogen are used in the presence of excess oxygen how many grams of water will
astra-53 [7]

Answer:

90g of H2O

Explanation:

2H2 + O2 —> 2H2O

First, we calculate the molar masses of H2 And H20.

Molar Mass of H2 = 2g/mol

Mass conc of H2 from the balanced equation = 2 x 2 = 4g

Molar Mass of H2O = 2 + 16 = 18g/mol

Mass conc of H2O from the balanced equation = 2x18 = 36g

From the equation,

4g of H2 produced 36g of H2O

Therefore, 10g of H2 will be produce = (10x36)/4 = 90g of H2O

7 0
2 years ago
What type of chemical reaction will occur when iron (III) hydroxide is heated and forms new products?
Leni [432]

Answer:

Decomposition

Explanation:

A decomposition reaction is a type of reaction in which a compound is broken down into its constituent elements sometimes under the influence of heat.

When  iron (III) hydroxide is heated,new products are formed according to the equation; 2Fe(OH)3 -----------> Fe2O3 + 3H2O.

This is a thermal decomposition reaction.

3 0
2 years ago
1. Calculate the mass (g), of 4.5 atoms of oxygen.<br> I
konstantin123 [22]

Answer

thus, 4 moles of oxygen gas (O2) would have a mass of 128 g.

3 0
3 years ago
A ball thrown across a football field is an example of a(n)
Cloud [144]

I don't know what you mean by the question, but in science it is Newton's second law.

"The second law explains how the velocity of an object changes when it is subjected to an external force."

I hope this helped!+*♡

7 0
2 years ago
The change in the standard Gibbs free energy (ΔGº) for the dissociation of nitrous acid (HNO2) at 298 K is 19.09 kJ. If the pH o
Fynjy0 [20]
The change in the standard Gibbs free energy (ΔGº) for the dissociation of nitrous acid (HNO2) at 298 K is 19.09 kJ. If the pH of the solution after equilibrium is reached is 1.30 and the NO2 – concentration at equilibrium is 0.00060 M. What is the equilibrium concentration of HNO2? Hint: Use pH to determine the equilibrium concentration of H+ .
HNO2(aq) H + (aq) + NO2 – (aq)
4 0
3 years ago
Other questions:
  • 50 points!! Brainliest if correct!!
    11·1 answer
  • 28Which is true?
    12·1 answer
  • 5.00 mol of ammonia are introduced into a 5.00 L reactor vessel in which it partially dissociates at high temperatures. 2NH 3(g)
    14·1 answer
  • Which of the following is not used when analyzing and evaluating scientific explanations?
    11·1 answer
  • Determine the name of the following compound Fe(OH) 3 , Provide explanation of how you determined the name, including the type o
    13·1 answer
  • What is the density of a substance with a mass of 15.0 g and a volume of 5.0 mL?
    14·1 answer
  • In a water molecule (H2O), the oxygen atom has two unshared pairs of electrons and two bonding pairs of electrons. How do the un
    9·1 answer
  • 15. If you dilute a 6 M solution of HCl from 5 mL to 50mL, what is the concentration of this new solution? (M1V1 = M2V2)
    6·1 answer
  • Caluclate the volume of0,25 mol dm -^3 hydrochloric acid required to neutralize 2.0 dm^3 of 0,15 mol dm-^3 barium hydroxide
    11·2 answers
  • What is one element a topographic map shows?<br><br> Air flow<br> Climate<br> People<br> Relief
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!