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Oksanka [162]
3 years ago
11

What conditions on Earth allow life to thrive?

Chemistry
2 answers:
olga_2 [115]3 years ago
8 0

Answer:

atmosphere containing free oxygen --> atmosphere shielding against UV --> ozone layer in upper atmosphere --> axis of rotation generally perpendicular to orbital plane --> magnetic field that deflects the solar wind --> liquid water --> temperature near the triple point of water --> range of temperature sufficiently narrow, over appreciable portion of the planet's surface, conducive to the chemistry of life

satela [25.4K]3 years ago
7 0
Ugghhhhhhhhhhhhhhhhhhhhhhhhhh
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Chemicals that cause cancer or called
Tpy6a [65]
They are called carcinogens
5 0
3 years ago
PLEASE I NEED THIS ANSWERED ASAP
kherson [118]
The answer would be: 
A. Cancel out CO because it appears as a reactant in one intermediate reaction and a product in the other intermediate reaction.

In this question, there are two half-reaction equations. To merge them up, you need to add the reactant with the reactant, then the product with the product. If there is a molecule on both side, you can cancel them. The full reaction would be:

C+ 1/2 O2 + CO + 1/2O2 ==>CO+ CO2       -----> remove CO from both side
C+ O2 ==>CO2
7 0
4 years ago
What is the molar mass of 4.23 g of an elemental gas in a 2.5L container at 282K and 1.4 atm?
balu736 [363]

Answer:

27.98g/mol

Explanation:

Using ideal gas law equation;

PV = nRT

Where;

P = pressure (atm)

V = volume (L)

T = temperature (K)

n = number of moles (mol)

R = gas law constant (0.0821 Latm/molK)

According to the information given:

V = 2.5L

P = 1.4 atm

T = 282K

n = ?

Using PV = nRT

n = PV/RT

n = 1.4 × 2.5/0.0821 × 282

n = 3.5/23.1522

n = 0.151mol

Using the formula to calculate molar mass of the elemental gas:

mole = mass/molar mass

Molar mass = mass/mole

Molar mass = 4.23g ÷ 0.151mol

Molar mass = 27.98g/mol

6 0
3 years ago
Which pair of elements would you expect to exhibit the greatest similarity in their physical and chemical properties? o,s si, p?
aliya0001 [1]
I believe the appropriate pair is O and S, Periodic table represents arrangements of elements ordered by their atomic number,physical and chemical properties. Both sulfur and oxygen are in the same group of the periodic table (group 6), they have a valency of 2, This means they have a greater similarity in chemical and physical properties.
8 0
3 years ago
What is the likeliest limiting factor restricting phytoplankton to approximately the top ten feet of the ocean, rather than deep
dedylja [7]

quantity of light

Explanation:

The likeliest limiting factor that restricts phytoplankton to approximately the top ten feet of the ocean rather than deeper is the quantity of light available.

  • Phytoplankton are  plants and they are the major producers in bodies of water.
  • The require the process of photosynthesis to manufacture their food.
  • During photosynthesis, phytoplankton takes in carbon dioxide and water and uses light to produce food in the process.
  • This life activity greatly relies on light.
  • The upper part of the ocean usually from 0-200m depth is the photic zone.
  • Deeper water is aphotic and receives little to no sunlight.
  • The photic zone is the zone where light reaches in water.
  • There is abundance of light in the photic zone.

learn more:

Photosynthesis brainly.com/question/4216541

#learnwithBrainly

3 0
4 years ago
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