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Zarrin [17]
3 years ago
8

Metamorphic rocks that melt in a holt fluid can recystallize into a different form of rock

Chemistry
1 answer:
kotykmax [81]3 years ago
7 0
I think that type of rock is call Igneous rock because the igneous rock is molten rock from volcanoes. 
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How many atoms are found in the chemical formula below?
Trava [24]

the answer is 15.

4+4+4+1 =13 then u add the 2 outside the bracket which will give u 15

4 0
3 years ago
How many molecules are in 49.0 g of H2SO4? Answer in units of molec.
Leokris [45]

Answer:

= 3.01× 10^{23} molecules.

Explanation:

1 mole of H_{2}SO_{4} - 98g

? moles of H_{2}SO_{4} - 49g

= 49 ÷ 98 = 0.5 moles of O2 in 49g.

But 1 mole of any substance = 6.023 × 10^{23} molecules

∴ 0.5 moles = 0.5 × 6.023 × 10^{23} molecules

= 3.01× 10^{23} molecules.

7 0
3 years ago
What is - 10°F in degrees Celsius
Anon25 [30]

Answer:

-23.333 °C

Explanation:

(-10°F − 32) × 5/9 = -23.33°C

6 0
3 years ago
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Iron(II) chloride is formed from the reaction between iron and copper(II) chloride. Fe + CuCl2 FeCl2 + Cu If the reactants have
sertanlavr [38]

Answer: see figure attached and explanation below.

Explanation:

1) Chemical equation (given):

Fe + CuCl₂ → Cu + FeCl₂

2) ΔHf reactants: -256 kJ/mol (given)

3) ΔHf products: - 321 kJ/mol (given)

4) ΔH reaction = ΔHf products - ΔHf reactants = - 321 kJ/mol - (- 256 kJ/mol) = - 65 kJ/mol

5) Conclusion:

i) Since ΔHf of products is less (more negative) than ΔHf of reactants, the reaction is exhotermic: the reaction released energy, which is the reason why the products content less potential energy than the reactants.

ii) Then, the energy diagram is the typical one of an exothermic reaction: the products start a certain potential energy level, the energy incrases until reaching the activation energy (the energy barrier to form the activated complex) and then energy decreases until a level below the energy of the reactants.

iii) See the attached figure with such kind of diagram showing the products at a lower level than the reactans

7 0
3 years ago
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MrRissso [65]

Answer:

number of valence electrons

Explanation:

The chemical properties of the atoms of elements in a group of the periodic table is most closely related to the number of valence electrons. All the chemical properties can be justified just by the number of valence electrons.

4 0
2 years ago
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