CHEMISTRY HIGH SCHOOL

What is igneous rock?
What is igneous rock? - 1

Answers

Answer 1
Answer:

Answer:  A) Rock formed by...magma or lava

Explanation:

As the question says, igneous rocks are formed from the cooling and solidification of magma or lava.

just a bit of visual aid thanks to Thoughtco.
Answer 2
Answer:

Answer:

It is the first one - Rock formed by the cooling and solidification of hot liquid magma or lava.

Explanation:

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1. What kind of diagram shows how energy flows from one organism to another?a. producer c. consumerb. ecology d. food chain

Which compound forms a saturated solution at 40 degrees C that contains 46 grams per 100 grams of water?

Answers

The correct answer for the question that is being presented above is this one: "NH4Cl." The compound that forms a saturated solution at 40 degrees C that contains 46 grams per 100 grams of water is the NH4Cl. Ammonium chloride is an inorganic compound with a white crystalline salt that is highly soluble in water.

Which hybrid orbitals would be formed if one s orbital and three p orbitals combined? sp sp2 sp3 sp4

Answers

Answer: Four sp^3 hybridized orbitals will formed when one s-orbital and three p-orbitals combines.

Explanation:

  • When ever one s-orbital combines with three p-orbitals it gives four sp^3 hybridized orbitals.
  • In which there is 25% of s character and 75% of p character.
  • The shape of the sp^3 hybridized orbitals is Tetrahedral. As shown in image attached.
sp3 
it's just adding the number of s and p together 
example of sp3 hybridization = CH4 
with 1 s orbital of H and 3 p orbital of C

How is the Maunder minimum related to climate?A. Changes in the Earth’s tilt correlate to changes in climate.B. The Maunder minimum is unrelated to climate.C. Changes in the Earth’s orbit correlate to changes in climate.D. Unusually low sunspot activity correlates to unusually cold climatic events.

Answers

I think the correct answer is D. The Maunder minimum is related to climate because it correlates to unusually cold climatic events. This is an event that happened sterting in 1645 to 1715 where very few sunspots were observed. It is also known as prolonged sunspot minimum. During this event, Europe and North America experienced colder temperature than what was usual.

What can be added to an atom to cause a nonvalence electron in the atom to temporarily become a valence electron?energy
mass
neutrons
electrons

Answers

Answer:energy

Explanation:

Energy can be added to an atom to cause a non-valence electron in the atom to temporarily become a valence electron. The correct option is A.

What are valence electrons?

Valence electrons are those electrons that are present in the outermost shell of the atom. These electrons are free to form bonds with another atoms.

Non-valence electrons are preset in the inner shell of the element. These shell are fulfilled with electrons, and these electrons does need to form bonds with other atoms to fulfill their orbit.

The electrons in the orbit have different energies present. The energy change when the electrons transfer from one shell to another shell. When energy is given to the electron, they move to the higher orbit or shell.

Thus, the correct option is A, energy.

To learn more about valence electrons, refer to the link:

brainly.com/question/1357920

#SPJ6

The electron configuration 1sÆ 2sÆ2pÒ 3sÆ3pÒ represents which noble gas?

Answers

This noble gas is argon (Ar), because its third energy level is full.

when a log of wood burns, it undergoes a _______. a. physical change. b. chemical change. c. physical and a chemical change. d. no physical or chemical change.

Answers

B. Chemical change is the answer!

B. chemical change because a new substance is forming with new properties.
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Given the equation: 2Na + 2H2O → 2NaOH + H2 Which substance in this equation is a binary compound?