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
ElenaW [278]
2 years ago
8

HELP ASAP!!! Which two energy transformations are shown in the photo? A. Chemical energy → electromagnetic energy B. Chemical en

ergy → thermal energy C. Thermal energy → electrical energy D. Thermal energy → chemical energy

Chemistry
2 answers:
Cerrena [4.2K]2 years ago
6 0
The answer os B. Chemical energy to thermal energy ((heat)).
diamong [38]2 years ago
4 0

Answer:

Chemical energy _ thermal energy

You might be interested in
If an element has a mass number of 222 and an atomic number of 86, how
svlad2 [7]

Answer:

136

Explanation:

The Mass Number is the combination of the amount of Protons and Neutrons in an element, so if the total mass is 222, and the amount of protons is 86, then you can do 86 + x = 222 to find that x is equal to 136

5 0
2 years ago
Atomic size of inert gases do not affect you inertness why​
Tresset [83]

Answer:

Because your body has built-in resistance to certain gases, no matter the size of the gas cloud.

That is why we are able to stay non-inert to these types of gases, like Carbon dioxide.

6 0
2 years ago
Ethanol, C2H6O, is most often blended with gasoline - usually as a 10 percent mix - to create a fuel called gasohol. Ethanol is
weeeeeb [17]

Answer:

This means 463 grams of ethanol would provide less amount of energy

Explanation:

Step 1: Data given

Heat of combustion of ethanol = 326.7 kcal/mol

The heat of combustion of octane =  1.308*10³ kcal/mol

Mass of octane = 463 grams

Molar mass octane = 114.23 g/mol

Molar mass ethanol = 46.07 g/mol

Step 2: Calculate moles octane

Moles octane = mass octane / molar mass octane

Moles octane = 463 grams / 114.23 g/mol

Moles octane = 4.05 moles

Step 3: Calculate energy of combustion of 4.05 moles octane

Combustion of 1 mol octane gives us: 1.308 * 10³ kcal/mol

Combustion of 4.05 moles octane gives us 4.05 * 1.308 * 10³ kcal/mol = <u>5.30 * 10³ kcal</u>

This means the combustion reaction of 463 grams of octane gives us 5.30 * 10³ kcal

Step 4:

Heat of combustion of ethanol = 326.7 kcal/mol

OR in words: combustion of 1 mol ethanol gives us 326.7 kcal energy

Moles ethanol = 463 grams / 46.07 g/mol

Moles ethanol = 10.05 moles

Since combustion of 1 mol ethanol gives us 326.7 kcal

10.05 moles ethanol will give us = 10.05 * 326.7 = 3283.3 kcal = <u>3.28 * 10³ kcal</u>

<u />

5.30 * 10³ kcal > 3.28 * 10³ kcal

This means 463 grams of ethanol would provide less amount of energy

3 0
3 years ago
What is the relationship between temperature and kinetic energy?
m_a_m_a [10]

Answer:

Kinetic energy is the energy that an object has because of its motion. The molecules in a substance have a range of kinetic energies because they don't all move at the same speed. As a substance absorbs heat the particles move faster so the average kinetic energy and therefore the temperature increases.

6 0
3 years ago
A Variable That Stays The Same In An Experiment Is A ?
hammer [34]
The variable that stays the same in an experiment is called the controlled variable

Hope this helps
3 0
2 years ago
Other questions:
  • If molar mass of M(OH)3 = 78 8. mass of M​
    9·1 answer
  • Is it always possible to identify something as an element compound pure substance or mixture
    10·1 answer
  • Why does changing the volume of a container change the pressure of the gas in it?​
    12·2 answers
  • Identify possible products of dehydrohalogenation of trans-1-bromo-2-methylcyclohexane
    13·1 answer
  • g Determine the value of the equilibrium constant for this reaction if an initial concentration of N2O4(g) of 0.040 mol/L is red
    6·1 answer
  • Pls I need
    11·1 answer
  • Explain how electron microscopes work and why some scientists might prefer to use electron microscopes instead of light microsco
    10·1 answer
  • What the concept of electronic transition​
    11·1 answer
  • Who was the old woman that was in the temple during the presentation of Jesus​
    6·1 answer
  • PROBLEMS
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!