Step 2: Rocks experience extreme heat and pressure
Step 3: Mineral composition of rocks changes
Step 4: Original rocks transform into a new rock
Which step contains an error?
Answer:
Step 1
Explanation:
That is the error
Answer:
The correct answer is Step 1: Rocks pushed up onto Earth's surface due to movement of tectonic plates.
The step 1 is the incorrect. It is incorrect because metamorphic rocks are formed on the surface of the Earth by the effect of heat and pressure on existing rocks. This can greatly affect the hardness, texture or layer patterns of the rocks. These rocks are changed by heat produced by nearby molten igneous rock. When the volcanoes erupt or release lava, the lava seeps inside the cracks of the rock and due to heat and pressure, forms a metamorphic rock.
Answer:
Scientist use the scientific method to test theories.
Explanation:
Scientists use a range of skills, primarily the scientific method, and tools, such as various lab equipment and technology, to conduct their research.
Scientists use a variety of skills and tools to conduct their research and investigations. The primary skill they possess is the scientific method, a systematic way of understanding the world around us, which involves observation, question formulation, hypothesis testing, data collection, data analysis and conclusion drawing.
As for tools, scientists use a range of laboratory equipment like microscopes and pipettes for biological research, telescopes for astronomical studies, spectrophotometers for chemical analysis, computers for data analysis, and more. Technology is greatly used in science as it aids in thorough and precise investigations.
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Toothium (T): This is a nonmetal with an average atomic mass number close to 19.
Floatium (Fl): This is a gas that the aliens often use to fill balloons and blimps. It contains two protons in its nucleus.
Breathium (Bt): This element is a nonmetal and has one less proton than an atom of Toothium and has an atomic mass close to 16 amu.
Lightium (Lg): This is a gas that does not react with other elements. It glows when it is heated in a lamp or vacuum tube. It contains one more proton in its nucleus than Toothium.
Rottoneggium (Re): This is a nonmetal with one less electron than Mustarium. It has a total of 16 electrons in its electron cloud.
I honestly don't understand
Answer:
0.643 mol.
Explanation:
where, P is the pressure of the gas in atm (P = 4.0 atm).
V is the volume of the gas in L (V = 4000 mL = 4.0 L).
n is the no. of moles of the gas in mol (n = ??? mol).
R is the general gas constant (R = 0.0821 L.atm/mol.K),
T is the temperature of the gas in K (T = 30ºC + 273 = 303 K).
∴ n = PV/RT = (4.0 atm)(4.0 L)/(0.0821 L.atm/mol.K)(303 K) = 0.643 mol.