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
uranmaximum [27]
3 years ago
5

PLS HELP ASAP I DONT HAVE TIME

Chemistry
1 answer:
11Alexandr11 [23.1K]3 years ago
5 0

Answer:

An autotroph absorbs sunlight from their stoma and converts this solar energy to chemical energy with their chloroplasts. As you can see, the sun's interaction of matter and energy is vital to sustaining all living things on Earth.

Explanation:

You might be interested in
A sample of milk kept at 25 °C is found to sour 40 times as rapidly as when it is kept at 4 °C. Estimate the activation energy f
irga5000 [103]

Answer:

120.575 kJ is the activation energy for the souring process.

Explanation:

The formula for an activation energy is given as:

\log (\frac{K_2}{K_1})=\frac{Ea}{2.303\times R}[\frac{1}{T_1}-\frac{1}{T_2}]

where,

K_1 = rate constant at 25^oC = 40k

K_2 = rate constant at 4^oC = k

Ea = activation energy for the reaction = ?

R = gas constant = 8.314 J/mole.K

T_1 = initial temperature = 25^oC=273+25=298 K

T_2 = final temperature = 4^oC=273+4=277 K

Now put all the given values in this formula, we get:l

\log (\frac{k}{40k})=\frac{Ea}{2.303\times 8.314 J/mol K}[\frac{1}{298K}-\frac{1}{277 K}]

E_a=120,575.61J=120.575 kJ

120.575 kJ is the activation energy for the souring process.

7 0
3 years ago
Question 3 of 10
yulyashka [42]

Answer: A.) Look at the benefits and challenges of using specific materials.

Explanation: They can’t decide whether they made the best product or not because it is a new project.

6 0
2 years ago
How long does it take long currents to complete their cycle around the world?
monitta

Answer:it takes about a day

Explanation:

7 0
3 years ago
In a rocket motor fueled with butane, how many kg of liquid oxygen should be provided with each kilogram of butane to provide fo
Travka [436]
<u>Answer</u>

So this is the reaction that happens. 
<span>C4H10 + O2 = CO2 + H2O </span>

<span>Balanced, it is </span>
<span>2C4H10 + 8O2 = 8CO2 + 10H2O </span>

<span>Given 1 kg or 1000 g of butane, use stoichiometry aka factor labeling aka conversions and mole ratios to get to grams of oxygen. </span>

<span>I'll do an example. Let's form water. Hydrogen is diatomic too. </span>
<span>2H2 + O2 = 2H2O </span>

<span>Given 1000 g of Hydrogen, I need to know how many grams of oxygen to use. To convert grams to moles,
I know that 1 mol of H2 equals 2.02 g. Then, for every mole of O2, there are 2 moles of H2. Then converting moles of O2 to grams, I know that one mole of it equals 32 grams. </span>
<span>[1000 g H2] x [1 mol H2/2.02 g H2] x [1 mol O2/2 mol H2] x [32 g O2/1 mol O2] </span>

<span>My answer would be  7.9 kg </span>
3 0
3 years ago
WILL MARK BRAINLY! Which chemical element has the shortest name?
Aleonysh [2.5K]

Answer:

boron I guess

hope this heps

5 0
3 years ago
Other questions:
  • If an unshielded sample of radioactive material emits alpha particles, what effect will it have on a person sitting in the next
    9·2 answers
  • A chemical process that takes place in an organism and is essential to life is called?
    10·1 answer
  • Help!! us own words, please!!
    10·1 answer
  • What will happen if pressure is increased on the system?
    7·1 answer
  • Why do airbags fill evenly with gases.
    15·1 answer
  • Fish, amphibians, reptiles, birds, and mammals have similar embryos. They all start with gill slits. Fish and some amphibians gr
    5·1 answer
  • What does the number 5 represent in 5 AlPO4
    5·1 answer
  • In a few sentences, describe the molecular polarity and the intermolecular forces present in ammonium lauryl sulfate.
    12·1 answer
  • Sodium combines with chlorine to produce sodium chloride formula equation and balanced ​
    8·1 answer
  • Hhhhhhhhhhhheeeeeeeeeeeellllllllllllllllllpppppppppppppppp
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!