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Simora [160]
3 years ago
12

Gneiss rock forms from a great amount of pressure and heat underground. What type of rock is it?

Chemistry
1 answer:
zysi [14]3 years ago
5 0

Answer:

Gneiss is a foliated metamorphic rock

Explanation:

Gneiss  is a high grade metamorphic rock, meaning that it has been subjected to higher temperatures and pressures .

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If solid become liquid can it become solid again
velikii [3]

Answer:

Yes!  It's because of like freezing and or solidification. It's the phase transition in which a liquid turns into a solid. It's when the temperature is lowered to or below a type of  freezing point.

Explanation:

3 0
3 years ago
A nursing instructor is teaching about pharmacological treatments for attention-deficit/hyperactivity disorder (ADHD). Which inf
pashok25 [27]

Answer:

The possible numerous

side effects of atomoxetine.

Explanation:

The side effects of atomoxetine are numerous and so it should be included in the lesson plan.

Side effects like Stomach upset, nausea, vomiting, constipation, tiredness, loss of appetite/weight loss, dry mouth, dizziness, drowsiness, trouble sleeping, or decrease in sexual ability/desire may occur.

Also,increased blood pressure, difficulty urinating, fainting,liver damage, abdominal pain, heart attack, stroke.

5 0
3 years ago
Among the following, which atom is most likely to form an ion with a charge of 2+?
Zigmanuir [339]

Answer:

C. Ca.

Explanation:

The atom loses or gains electrons forming anion or cation to reach stability (fill the outermost shell of the electron levels).

When atom gains electrons forms anions with negative charge.

While, when atom loses electrons forms cations with positive charge.

A. O:

O atom has 8 electrons in its nucleus and gains 2 electrons to reach stability (10 electrons, configuration of Ne).

<em>So, it forms O²⁻.</em>

<em></em>

B. AI:

Al atom has 13 electrons in its nucleus and loses 3 electrons to reach stability (10 electrons, configuration of Ne).

<em>So, it forms Al³⁺.</em>

<em></em>

C. Ca:

Ca atom has 12 electrons in its nucleus and loses 2 electrons to reach stability (10 electrons, configuration of Ne).

<em>So, it forms Ca²⁺.</em>

<em></em>

D. Na:

Na atom has 11 electrons in its nucleus and loses 1 electron to reach stability (10 electrons, configuration of Ne).

<em>So, it forms Na⁺.</em>

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5 0
3 years ago
All minerals are compounds. True False
Svetach [21]
True. The five characteristics necessary for a substance to be a mineral are Naturally Occurring, Inorganic, Solid, crystal structure and Definite Chemical Composition. Each mineral has its own properties because all minerals are compounds.
7 0
3 years ago
Convert 302 K into C
uranmaximum [27]

Answer:

302°K = 28.85°C

Explanation:

Formula: °K - 273.15 = °C

0°C is equal to roughly 273°K

Simply plug it into the formula to find your temperature:

302°K - 273.15 = °C

°C = 28.85

7 0
3 years ago
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