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
kifflom [539]
3 years ago
7

Caila designs a model to test how the use of different combinations of energy resources would affect global temperatures. Which

of these combinations is likely to produce the lowest increase in temperature in her model?
A. Geothermal and oil

B. Solar and hydroelectric

C. Biofuels and wind

D. Natural gas and coal
Chemistry
2 answers:
Igoryamba3 years ago
6 0
Solar and hydroelectric (just took test)
nikdorinn [45]3 years ago
4 0

The answer is B. Solar and hydroelectric energy are renewable sources of energy. This means that they are sustainable hence cannot be depleted since they renew themselves at sufficient rates. They have the lowest carbon footprint compared to the other choices’ combinations. Therefore due to their low greenhouse gas emissions, they contribute the least to global warming.

You might be interested in
What is the particle that is labeled with a question mark (?) in the diagram?
Nat2105 [25]

Answer is: quark.

Quark is a type of elementary particle and a fundamental constituent of matter.

Quarks form composite hadrons (protons and neutrons). Protons and neutrons are in the nucleus of an atom.

Hadrons include baryons (protons and neutrons) and mesons.

There are six types of quarks: up, down, strange, charm, bottom, and top.

5 0
3 years ago
Read 2 more answers
5400 L to KL<br> With work??
Gnesinka [82]

Answer:

5.4KL

Explanation:

Divide by 1000

3 0
3 years ago
Which of the following have the most similar properties?
rjkz [21]

Answer:

             Option-B (Carbon and Silicon)

Explanation:

                  Among the given pairs only carbon and silicon have the most similar properties. This is because,

Sodium and Magnesium belong to different groups. Sodium present in Group I has one electron in its valence shell and capable of transferring only one electron while, Magnesium present in Group II have two electrons in its valence shell and is capable of donating two electrons. Hence, both show different properties.

Example:

                                           2 Na  +  Cl₂    →     NaCl

                                           Mg  +  Cl₂    →    MgCl₂

As shown in reactions when Sodium and Magnesium are treated with Cl₂ they give a products with different proportions.

Carbon and Silicon show almost same properties because both belong to Group IV hence both are capable of forming four bonds. Also, they share the same property of self linkage in making a long chains.

Argon and Chlorine also belong to two different groups. Argon is present in Group VIII (Noble Gases) and Chlorine is present in Group VII (Halogens). Hence, Argon is an inert specie which is non reactive while Chlorine gives different reaction easily.

Potassium and Calcium belong to different groups. Potassium present in Group I has one electron in its valence shell and capable of transferring only one electron while, Calcium present in Group II have two electrons in its valence shell and is capable of donating two electrons. Hence, both show different properties.

Example:

                                           2 K  +  Cl₂    →     KCl

                                           Ca  +  Cl₂    →    CaCl₂

As shown in reactions when Potassium and Calcium are treated with Cl₂ they give a products with different proportions.

6 0
3 years ago
Look at the following balanced equation. How many atoms of oxygen (O) are present on the reactant side of the equation?
balu736 [363]

There are 6 atoms of oxygen on the reactant side of the following equation: 2Fe2O3 + 3C → 4Fe + 3CO2. Details about atoms can be found below.

<h3>How to find number of atoms?</h3>

The number of atoms of an element in a balanced equation is the amount of that element involved in the reaction.

According to this question, Iron oxide reacts with carbon to produce iron and carbon dioxide as follows:

2Fe2O3 + 3C → 4Fe + 3CO2

In this reaction, 2 × 3 atoms = 6 atoms of oxygen are present on the reactant side of the equation.

Learn more about number of atoms at: brainly.com/question/8834373

#SPJ1

4 0
2 years ago
How are a fact and a theory similar
Serhud [2]

Answer: A butterfly population includes both green and yellow butterflies, and a predator sees yellow more easily than it does green" would lead to evolution since the green ones would live on.

Explanation:

7 0
2 years ago
Other questions:
  • What happens to a redox reaction when it is shown as half-reactions answers?
    8·1 answer
  • An atom of the element iron has an atomic number of 26 and an atomic mass number of 56. if it is neutral, how many protons, neut
    12·2 answers
  • Which of the following has the least resistance to electric flow? metal
    12·1 answer
  • Maple syrup, which comes from the sap of maple trees, contains water and natural sugars. It's a clear, brown liquid and the suga
    15·1 answer
  • Please help me! Thank you!
    13·1 answer
  • What is the [ch3co2-]/[ch3co2h] ratio necessary to make a buffer solution with a ph of 4.34? ka = 1.8 × 10-5 for ch3co2h?
    11·1 answer
  • What does a very small equilibrium constant (K≪ 1) tell you about the reaction? View Available Hint(s) What does a very small eq
    15·1 answer
  • What is the major source of energy for the production of electricity in this facility ​
    6·1 answer
  • Barium and lead both produce yellow precipitate with the chromate ion as part of their confirmation tests. if you had a sample t
    8·2 answers
  • If a student didn’t understand the periodic table, how would you explain it to them?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!