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mina [271]
3 years ago
5

What's the word of a theory that states that earths crust and upper mantle are broken into sections which move around on a speci

al layer of the mantle?
Chemistry
2 answers:
zaharov [31]3 years ago
5 0
The Plate Tectonic Theory
stiv31 [10]3 years ago
4 0

Answer:

The Plate Tectonic theory

Explanation:

According to the theory of plate tectonics, the earth's lithosphere is comprised of numerous plates which are commonly known as tectonic plates and are mainly of two types, the continental and oceanic crust.

These plates move over a relatively less dense layer of asthenosphere where the rocks flow in response to deformation. This movement of plates is due to the formation of convection current in the mantle and this currents are formed because of the heat supplied from the interior of the earth.

This is the main driving force for the lithospheric plates to move over the layer of asthenosphere.

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butalik [34]

Answer:

C and D

Explanation:

Claims based on science are claims that can be backed up by data and evidence. In the sentence "Data from ice cores show that global temperatures are rising dramatically.", the part "Data from" inclines that there is factually proof backing up the claim. Part of the sentence "Satellite imagery shows.." inclines that there is also proof/evidence backing this claim. The other two sentences are <em>opinions</em> based on science. Instead, they should give some sort of data/evidence that would support that claim.

4 0
2 years ago
Read 2 more answers
A liquid occupies a volume of 5.0 L has a mass of 6.0 kg. what is the density of a the lights in kg/L
grandymaker [24]

Answer:

Hey there! :

Volume = 5.0 L

mass = 6.0 Kg

Therefore:

Density = mass / Volume

Density = 6.0 / 5.0

Density = 1.2 kg/L

6 0
3 years ago
What is the molar mass of Na2CO3? 60.0 g/mol 106.0 g/mol 118.0 g/mol 141.0 g/mol
Dmitry [639]

Answer is: the molar mass od sodium carbonate (Na₂CO₃) is 106.0 g/mol.

M(Na₂CO₃) = 2 · Ar(Na) + Ar(C) + 3 · Ar(O).

M(Na₂CO₃) = 2 · 23 + 12 + 3 · 16 · g/mol.

M(Na₂CO₃) = 46 + 12 + 48 · g/mol.

M(Na₂CO₃) = 106 g/mol; molar mass of sodium carbonate.

Ar is relative atomic mass (the ratio of the average mass of atoms of a chemical element to one unified atomic mass unit) of an element.

8 0
3 years ago
In which set do all elements tend to form anions in binary ionic compounds? li, na, k n, o, i c, s, pb k, fe, br?
pav-90 [236]

Atoms or molecule after gaining of electron possesses negative charge and is known as anion.

For the given sets:

  • Li, Na, K

The given elements are alkali metals and have tendency to lose electrons easily and form cations.

  • N, O, I

The given elements are non-metals and are electronegative. So, they gain electrons easily and form anion.

  • C, S, Pb

Carbon has tendency to form bond by sharing of electrons, Sulfur has tendency to gain electrons and form anion whereas Lead has tendency to lose electron.

  • K, Fe, Br

Potassium and Iron has tendency to lose electron and form cation whereas Bromine has tendency to gain electron to form anion.

Hence, from the given sets, all elements of set: N, O, I have tendency to form anions in binary ionic compounds.

8 0
3 years ago
Read 2 more answers
I WILL GIVE U BRAINLIEST IF UR CORRECT
KiRa [710]

Answer:

D: a new substance

Explanation:

Chemical reaction

A change in matter that produces on or more new substances

7 0
3 years ago
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