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
IceJOKER [234]
3 years ago
5

What can you conclude about these two reactions based on the chemical equations? Reaction A: 6CO2(g) + 6H2O(l) + sunlight ? C6H1

2O6(aq) + 6O2(g) Reaction B: 2H2(g) + O2(g) ? 2H2O(g) + energy A. Reactions A and B are both exothermic. B. Reaction A is endothermic, and reaction B is exothermic. C. Reactions A and B are both endothermic. D. Reaction A is exothermic, and reaction B is endothermic.
Chemistry
1 answer:
OlgaM077 [116]3 years ago
8 0

Given reactions:

(A)   6CO2(g) + 6H2O(l) + sunlight → C6H12O6(aq) + 6O2(g)

(B)  2H2(g) + O2(g) → 2H2O(g) + energy

Exothermic reactions are those which proceed with the release of heat/energy. In contrast, endothermic reactions proceed with the absorption of energy in the form of heat or light.

Since reaction A required sunlight, it is endothermic. Reaction B releases energy, hence exothermic

Ans: (B)

A is endothermic

B is exothermic


You might be interested in
In what way do the oceans and the forests perform a similar function in the carbon cycle, under normal conditions?.
ikadub [295]

Both take carbon dioxide out of the atmosphere.

The ocean absorbs much of the carbon dioxide released when fossil fuels are burned. This extra carbon dioxide lowers the ocean's pH through a process called ocean acidification. Both are important elements for all life on earth. Relationship between the water cycle and the carbon cycle. The sun's energy drives both the carbon cycle and the water cycle.

Recall that sunlight water and carbon dioxide combine in green plants via photosynthesis to produce carbohydrates. The ocean also regulates the Earth's climate. They determine the weather by telling temperatures and determining rainfall, droughts, and floods. It is also the world's largest carbon sink, with an estimated 83% of the global carbon cycle circulating in seawater.

Learn more about The carbon cycle here:-brainly.com/question/1194643

#SPJ4

8 0
1 year ago
What are called conductors of electricity ​
attashe74 [19]

Answer:

Some materials let electricity pass through them easily. These materials are known as electrical conductors. Many metals, such as copper, iron and steel, are good electrical conductors.

I hope it's helpful!

3 0
3 years ago
Why for thousand of years people believed that stars moved across earth sky
Rzqust [24]
Because they did not have the proper technology. Hope my answer was useful.

5 0
3 years ago
Read 2 more answers
1. A student has a petri dish packed with a layer of marbles. Which of the following activities should the student perform to de
Sindrei [870]

Answer: A.) Removing a few marbles from the petri dish and stirring the rest around as energy is added

B) The high temperature makes the gas molecules spread apart according to Charles's law because this law describes how a gas will behave at constant pressure.

Explanation: The phase transition from solid to liquid involves the use of energy to make the molecules present in solid to break the inter molecular forces and to start moving away from each other as in liquid. The molecules in solid are closely packed whereas in liquids they are loosely packed. Thus less number of molecules are present per unit volume in a liquid. Thus the marbles have to be removed to show less density and the energy has to supplied. Removing all but two marbles from the petri dish and shaking them vigorously as energy is added will give us a more disorderd state called gas in which the molecules are very far apart and the density is least.

B) According to Boyle's law the pressure is inversely proportional to the volume of the gas at constant temperature and constant number of moles. P\propto \frac{1}{V}     (At constant temperature and number of moles)

According to Charle's law the volume is directly proportional to the temperature of the gas at constant pressure and constant number of moles.

V\propto T    (At constant pressure and number of moles)

Thus as temperature of the gas increases , the volume also increases, and the density decreases. the gas becomes lighter and thus rises up.

7 0
3 years ago
A microwave works by focusing microwave light on the food inside of it. Which type of energy transformation takes place in a mic
nasty-shy [4]

Answer:

C is the answer

Explanation:

Heat energy is transformed into electrical energy.

3 0
3 years ago
Read 2 more answers
Other questions:
  • Which method would you use to perform these reactions, grignard carboxylation or nitrile hydrolysis? reaction #1:?
    12·1 answer
  • Please help me identify the element. The picture is blurry so..
    13·2 answers
  • . From left to right across a period in the periodic table, elements become less ___________ and more ______________ in their pr
    8·2 answers
  • What is the largest number that can be added to 6.022x10^23 without changing its displayed value?
    10·1 answer
  • In which state of matter do the particles spread apart and fill all the space available to them?
    13·2 answers
  • Convert 75 mL of water to gallons (show work)​
    11·1 answer
  • Scientific knowledge A. Never changes because scientists are never wrong. B. Changes as the public's opinion of a given topic ch
    11·1 answer
  • How many Orbits does the element Radium (Ra) have?
    11·1 answer
  • If the initial concentration of N2O5 was 0.500 M and the concentration of N2O5 was 0.450 M after 0.100 s, what is the average ra
    11·1 answer
  • Three shining iron nails Kept unday the following conditions.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!