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
Amanda [17]
3 years ago
9

The main source of energy for life on earth is ____? Dirt Nuclear radiation Sun

Chemistry
1 answer:
sdas [7]3 years ago
5 0

Answer:

Sun it is the sun bcz the Sun is the major source of energy for organisms and the ecosystems 

You might be interested in
The isomerization of methylisonitrile to acetonitrileCH3NC(g)→CH3CN(g)is first order in CH3NC . The rate constant for the reacti
lisabon 2012 [21]

Answer:

Option E, Half life = 2.96\times 10^3\ s

Explanation:

For a first order reaction, rate constant and half-life is related as:

            t_{1/2}=\frac{0.693}{k}

Where,

t_{1/2} = Half life

k = Rate constant

Rate constant given = 2.34\times 10^{-4}\ s^{-1}

t_{1/2}=\frac{0.693}{k}

=\frac{0.693}{2.34 \times 10^{-4}}=2.96\times 10^3\ s

So, the correct option is option E.

4 0
3 years ago
List the following objects in order from lowest inertia to highest inertia
m_a_m_a [10]
I don’t see nun tho where’s the objects
5 0
2 years ago
Read 2 more answers
A solution is prepared by dissolving 106.3 g HCl(g) in enough water to make 175.0 L of solution. The ph of this solution is
DedPeter [7]

Answer:

moles HCl = 101.2 g /36.461 g/mol=2.78

[H+]= 2.78 mol/ 150 L =0.0185

pH = - log 0.0185=1.73

1.73 is the answer

3 0
3 years ago
Which of the following is an example of a reaction that you've seen in your everyday life ?
soldier1979 [14.2K]
I believe this pertains to chemical reaction? So my guess would be answer A “Fire burning”

Don’t quote me though lol.
7 0
3 years ago
Read 2 more answers
Water has many exceptional and useful properties. Which is the rarest property among compounds?Water has many exceptional and us
dem82 [27]

The density of ice is less than the density of water (liquid). We generally observe that the density of a solid substance is more than its liquid form as volume of a solid is generally less than the liquid, However in case of water this is not true.

The volume of ice is less than that of liquid water due to an open cage like structure in ice which gives its a wide structure. This cage like structure is due to presence of hydrogen bond (more extensive) in ice.

The maximum density of water is observed at 4 degree celsius

5 0
3 years ago
Other questions:
  • The concentration of hydrogen in soil sample 13 * 10 ^ - 6 * M the soil is tested with a pH meter, what value should the meter r
    11·1 answer
  • In a chemical equation, the arrow
    6·2 answers
  • Give the net ionic equation for the reaction (if any) that occurs when aqueous solutions of Al(C2H3O2)3 and LiNO3 are mixed. Giv
    12·2 answers
  • What happens to the average kinetic energy of gas particles as the temperature increases?
    13·1 answer
  • How many moles of atoms are in 6.00 g of 13C?
    8·2 answers
  • Glycerol is a subunit molecule of a
    14·1 answer
  • Which of the following statements is true for all eukarya?
    14·1 answer
  • Hi! I need some help with this pleaseeee!!
    5·1 answer
  • According to our textbook, write the formula for the anhydrous compound that was part of the mixture called natron that was used
    5·1 answer
  • Please help! 50 points and Brainliest!
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!