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1 year ago

Weathering and Erosion Unit Test

1 answer:

5 0

Crustal deformation builds landforms when two tectonic plates start to push into each other they can rise up and build mountains, or when they sink under, they create valleys.

<h3>How crustal deformation builds landforms?</h3>

Tectonic pressure in a crust can cause folding. Folding can end up with the formation of valleys and mountains so we can conclude that when two tectonic plates start to push into each other they can rise up and build mountains, or when they sink under, they create deep valleys.

Learn more about plates here: brainly.com/question/16939139

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What is the identity of the element, and how many neutrons does it have? An elements most stable ion forms an ionic compound wit

Pani-rosa [81]

Answer:

B. CA, 14

Explanation:

Atoms of elements contain small particles known as electrons, neutrons, and protons. The nucleus of an atom is made up of neutrons and protons which are at the center of the atom. Electrons on the other hand surrounds the nucleus. Electron has negative charge while proton has a positive charge. The number of neutrons is equivalent to the number of protons . In addition, the number of protons is equal to mass number minus the number of electrons.

For the compound $XCl_{2}$ , it can be broken down into $X^{2+}$ and $2Cl^{-}$ . Its ion has a mass of 34 and 18 electrons which means it has already lost 2 electrons.

Therefore:

For the given element, the number of electrons is 18+2 = 20 electrons.

The number of protons = 34 - 20 = 14.

And the number of neutrons is 14.

Only option B has the correct answer.

6 0

2 years ago

An iron pipe has a density of 7.86 g/mL and a volume of 324.4 mL. What is the mass of the iron pipe?

wlad13 [49]

Answer:

$Mass=2549.784 \ g$

Explanation:

The equation for mass is:

$Mass = Density * Volume$

We plug in the given values into the equation:

$Mass = 7.86 \ g/mL * 324.4 \ mL$

$Mass=2549.784 \ g$

6 0

1 year ago

Which of the following statements about the formation of a solution is true?

bekas [8.4K]

<span>In the formation of a solution, energy is required to overcome the forces of attraction between the solvent particles. The first step is for the solvent particles to move in order for solute particles to enter the system. This process is endothermic where energy flows into the system. The second step is when solute particles must separate from other solute particles. Lastly, the solute should move between solvent particles.</span>

4 0

2 years ago

What is the mass in grams of one mole of many of any substance known as

OLEGan [10]

The molecular weight of the substance.

7 0

2 years ago

Check all that apply.

xxMikexx [17]

Answer:

DO NOT TASTE IT, but all the rest are correct

Explanation: