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Oksana_A [137]
3 years ago
9

Plz answer ASAP!

Chemistry
2 answers:
UkoKoshka [18]3 years ago
8 0

Answer:

The correct answer is d.

Explanation:

A covalent bond between two atoms occurs when they join together to reach the stable octet, sharing electrons located at the last level. The electronegativity difference between the atoms must be less than 1.7 so that an ionic-type bond does not occur.

The two atoms share one or more pairs of electrons in a new type of orbital called molecular. Covalent bonds occur between atoms of the same non-metal element, between different non-metal atoms, and between a non-metal atom and the hydrogen atom.

Have a nice day!

Alchen [17]3 years ago
4 0
What types of atoms typically form covalent bonds?

The correct answer:

d) Nonmetals with nonmetals, because their difference in electronegativity is below 1.7.

En example to explain:
An example of a covalent bonding: HCl -> 2 nonmentals
-> a difference in electronegativity less than 1.7:

EN(Cl) = 3.0 and EN (H) = 2.1 (you can search these values in a periodic table)
/\EN = 3.0 - 2.1 = 0.9

0.9 < 1.7

I hope this helped you out!
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Astronomers studying the planet of Rhombus have detected sedimentary rock on its surface. One astronomer wonders if material in
Fed [463]

Answer:

igneous rock CAN become sedimentary rock through a process called ROCK CYCLE.

Explanation:

Rocks can be defined as solid structures of minerals that are formed naturally over a period of time. They are grouped into three main types which includes the following:

- igneous rock

- sedimentary rocks and

- metamorphic rocks.

Rocks are capable of transforming from one type to another through a process known as rock cycle. There are two forces that brings about this process which includes:

- The internal force : this is the Earth’s internal heat engine, which moves material around in the core and the mantle and leads to slow but significant changes within the crust.

- The external force: this is the the hydrological cycle, which is the movement of water, ice, and air at the surface, and is powered by the sun.

Molten magma cools to form either extrusive igneous rock or intrusive igneous rock. With time they undergo weathering, eroded, transported, and then deposited as sediments which are being compressed and cemented into SEDIMENTARY ROCKS. Again through the above mentioned forces, different kinds of rocks are either uplifted, to be re-eroded, or buried deeper within the crust where they are heated up, squeezed, and changed into METAMORPHIC ROCK.

Therefore the material in this sedimentary rock found in Rhombus planet used to be in igneous rock deep in Rhombus's interior due to continuous rock cycling on the planet. I hope this helps, thanks.

5 0
3 years ago
Which pH indicates a substance that is more acidic than a substance with a pH of 4
dexar [7]
Anything with a pH level of 3, 2, or 1.
8 0
3 years ago
How do hydroxyl ions and hydronium ions affect pH?
Nookie1986 [14]
Hydroxyl ions are OH⁻ while hydronium ions are H₃O⁺ which is essentially H⁺ ions. The formula for pH is: pH = -log[H⁺]. So, the greater the concentration of H⁺ is, the lower the pH which indicates acidity. On the other hand, the greater the concentration of OH⁻, the greater the pH which indicates basicity. This is also a consequence of the equation: pH + pOH = 14.
4 0
4 years ago
True or false When heat flows to an object, it can change states.
emmasim [6.3K]

Answer: True

Explanation:

The matter exists as solid, liquid or gas. These are called the states of matter. The change of matter from one state to another can be achieved by heating or cooling.

The solid state can be converted into liquid state by providing heat to solid. The heat will make the particles move farther, resulting into liquid state.

Similarly when liquid state is provided heat, it changes to gaseous state. The heat will make the particles move much more faster.

Thus the statement that when heat flows to an object, it can change states is True.

7 0
3 years ago
What describes the likelihood that a given event will occur ?
attashe74 [19]

Answer

A: Probability

Explanation:

Please mark brainliest

6 0
3 years ago
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