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
AVprozaik [17]
3 years ago
12

Why is Earth’s temperature just right for life?

Chemistry
2 answers:
Readme [11.4K]3 years ago
7 0

Answer: D

Explanation:

LenaWriter [7]3 years ago
5 0

Answer:

D. Earth’s atmosphere traps heat from the sun, which makes Earth’s temperature

suitable for living things.

You might be interested in
What type of reaction is: 4 Fe + 3 O2 → 2 Fe2O3
Dafna11 [192]

Answer:

A. synthesis

Explanation:

The reaction given is a synthesis reaction in which two substances combines to give a product.

In this reaction:

      4Fe + 3O₂ →  2Fe₂O₃

The reaction involves the formation of a single product from two or more reactants.

The formation of a compound from union of the constituent elements also falls into this category of reaction.

3 0
3 years ago
Please answer this question
ZanzabumX [31]

Answer:

Is the fixed number of water molecules present in one formula unit of a substance

Explanation:

When copper sulphate is heated in a china dish, the blue colomed crystal changes to a white powder due to the removal of molecules of water of crystallization

6 0
3 years ago
2. During asexual reproduction in paramecia, a single paramecium becomes two new
zloy xaker [14]

Answer:

ion no

Explanation:

ion no

4 0
3 years ago
What two aspects of a force do scientists measure?
soldier1979 [14.2K]

Yo sup??

Force is a vector quantity therefore it has both direction and magnitude.

Hence scientists measure magnitude and direction of a force.

Correct answer is option A

Hope this helps

5 0
3 years ago
Draw and label the parts of a helium atom. Include the mass and charge of each subatomic particle.
mihalych1998 [28]

Explanation:

Helium is the second element on the periodic table.

  Information about helium:

  • it belongs to group O on the periodic table
  • it is has an atomic number of 2
  • Helium exists naturally as gas and it is nonreactive.

  To write an atom we use this format:

                                     ₙᵇGˣ

   G is the symbol of the atom

   n is the atomic number  

   b is the mass number

    x is the charge on the atom

Using the periodic table as guide

    Symbol of helium is He

     Atomic number of helium is 2

     mass number of helium is 4

     charge on helium atom is 0

                              ⁴₂He

Every atom contains protons, neutrons and electrons;

   Electrons are negatively charged. For a neutral atom, the number of electrons is the same as that of protons.

   Protons are positively charge particles in an atom. The atomic number is the number of protons in an atom.

   neutrons do not have charges.

 

   Helium has:

        Number of protons = 2

        Number of electrons = 2

        Number of neutrons = 2

Mass of each subatomic particle:

      1 electron = 9.11 x 10⁻³¹kg

      2 electrons = 1.82 x 10⁻³⁰kg  

     Protons and neutrons have the same mass:

           1 proton = 1.67 x 10⁻²⁷kg

           2 protons = 3.34 x 10⁻²⁷kg

           2 neutrons = 3.34 x 10⁻²⁷kg

Learn more:

helium brainly.com/question/2439349

#learnwithBrainly

4 0
3 years ago
Other questions:
  • A new potential heart medicine, code-named X-281, is being tested by a pharmaceutical company, Pharma-pill. As a research techni
    13·1 answer
  • Which is an example of negative phototropism?
    5·2 answers
  • Curd is not kept in copper and brass , why?
    10·1 answer
  • What property of matter does not change even though the appearance may
    13·2 answers
  • What happens to the gas particles when the jar is heated?
    8·1 answer
  • How many C atoms are there in 5.25 grams of a compound containing 92.26% C and 7.74% H?
    9·1 answer
  • In the reactants there is a curvy arrow, what does the direction of the arrow indicate?
    15·2 answers
  • Help me please I really need this tomorrow
    14·2 answers
  • Describe how you would find out whether copper(ii) oxide was a catalyst for the decomposition of hydrogen peroxide solution. You
    9·1 answer
  • How can you convert diamond into graphite ?​
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!