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
Andrews [41]
3 years ago
9

The Earth, the Sun, and the rest of the solar system are almost unimaginably old when viewed on a human time scale. While modern

humans first evolved approximately 200,000 years ago, the age of the Earth, the Sun, and the rest of the solar system is approximately what years
Chemistry
2 answers:
Nadusha1986 [10]3 years ago
8 0

Answer:

4.6 billion

Explanation:

i did it on study island

lord [1]3 years ago
4 0
That makes the Earth, the Sun, and the rest of the solar system
<span>something like  23 thousand times  as old as the human species !
</span><span>
</span>
You might be interested in
Using the following equation: 3H2SO4+ 2Fe -&gt; Fe2(SO4)3+ 3H2
Mariana [72]

Answer:

H₂SO₄

Explanation:

Given data:

Number of moles of H₂SO₄ = 15 mol

Number of moles of Fe = 13 mol

Which reactant is limiting reactant = ?

Solution:

Chemical equation:

3H₂SO₄  + 2Fe      →          Fe₂(SO₄)₃  + 3H₂

now we will compare the moles reactant with product.

               H₂SO₄         :          Fe₂(SO₄)₃  

                  3               :              1

                 15               :              1/3×15 = 5

                H₂SO₄         :            H₂

                  3               :              3

                 15               :              15

                Fe               :          Fe₂(SO₄)₃  

                  2               :              1

                 13               :              1/2×13 = 6.5

                Fe               :                H₂

                  2               :                 3

                 13               :              3/2×13 = 19.5

Number of moles of product formed by  H₂SO₄ are less thus it will act as limiting reactant.

8 0
3 years ago
10 atoms of aluminum reacts with 6 molecules of oxygen gas to produce aluminum oxide. 4 Al + 3 O2 ––&gt; 2 Al2O3 What is the exc
Mrrafil [7]

The excess reactant is Aluminum.

<u>Explanation:</u>

We have to write the balanced equation as,

4 Al+ 3 O₂ → 2 Al₂O₃

According to the molar ratio 4: 3, from the given balanced equation, we can say that 4 atoms of Al reacted with 3 molecules of oxygen.

Given that 10 atoms of aluminum reacts with 6 molecules of oxygen, as per the ratio only 8 atoms of Aluminum is required to react with 6 molecules of oxygen, so excess reactant is Aluminum.

8 0
3 years ago
An element in Group 2 of the periodic table likely has which characteristics?
ser-zykov [4K]

Answer:

Shiny solid. Conducts heat and electricity. Easily bends

Explanation:

8 0
2 years ago
What is the distance from the nucleus to the outer most electrons?
Dmitriy789 [7]
Atomic radius is the distance from the atom's nucleus to the outer edge of the electron cloud.
7 0
3 years ago
Describe how neutrons were discovered
xxMikexx [17]
Originally scientists believed in the plum pudding model of the atom (sphere of positive charge surrounded by smaller spheres of negative charge) then Rutherford did his scattering experiment (he shot alpha particles at a piece of gold foil some particles passed straight through the empty space of the atom, some were slightly deflected as they were closer to the atom's nucleus and some were completely reflected because they were headed in the path of the atom's nucleus
6 0
3 years ago
Other questions:
  • What was the result of heating the mixture? All BUT ONE choice is correct.
    5·1 answer
  • Previously in this lesson it was mentioned that, according to some reports, in the past 35 years, world oil consumption has grow
    6·1 answer
  • What is 1.23 x 10^-3 in standard notation
    14·2 answers
  • Describe all of the van der Waals forces that exist between molecules of water.
    10·1 answer
  • According to their locations on the Periodic Table, argon (Ar) and neon (Ne) are
    12·2 answers
  • Is there a clear difference between a very polar covalent bond and an ionic bond explain?
    12·1 answer
  • How many liters of h2 gas, collected over water at an atmospheric pressure of 752 mm hg and a temperature of 21.0°c, can be made
    5·1 answer
  • Water contrasts on freezing ?
    12·1 answer
  • Determine how many atoms of pure silver will be created when 19.83 x 1023 atoms of copper are used in the following reaction:
    9·2 answers
  • in the process of baking a cake, the recipe calls for 4 eggs 3 cups of flour 5 teaspoons of baking powder 1/3 pound of butter an
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!