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2 years ago

(Pls help i will give brainlyest) Label the missing parts of the diagram.

Chemistry

1 answer:

WARRIOR [948]2 years ago

4 0

Answer:

Sedimentary rock

Metamorphic rock Igneous rock

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When 231. mg of a certain molecular compound X are dissolved in 65. g of benzene (CH), the freezing point of the solution is mea

Elan Coil [88]

Answer:

Molar mass X = 18.2 g/mol

Explanation:

Step 1: Data given

Mass of compound X = 231 mg = 0.231 grams

Mass of benzene = 65.0 grams

The freezing point of the solution is measured to be 4.5 °C.

Freezing point of pure benzene = 5.5 °C

The freezing point constant for benzene is 5.12 °C/m

Step 2: Calculate molality

ΔT = i*Kf*m

⇒ΔT = the freezing point depression = 5.5 °C - 4.5 °C = 1.0 °C

⇒i = the Van't hoff factor = 1

⇒Kf = the freezing point depression constant for benzene = 5.12 °C/m

⇒m = the molality = moles X / mass benzene

m = 1.0 / 5.12 °C/m

m = 0.1953 molal

Step 3: Calculate moles X

Moles X = molality * mass benzene

Moles X = 0.1953 molal * 0.065 kg

Moles X = 0.0127 moles

Step 4: Calculate molar mass X

Molar mass X = mass / moles

Molar mass X = 0.231 grams / 0.0127 moles

Molar mass X = 18.2 g/mol

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3 years ago

Which biome contains mostly coniferous trees and receives 35 to 100 cm of rain per year?

fredd [130]

Answer: The Taiga Forest

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3 years ago

What happens when a gamma ray is emitted from nucleus of an atom

Masja [62]

Answer:

The emission of gamma rays does not alter the number of protons or neutrons in the nucleus but instead has the effect of moving the nucleus from a higher to a lower energy state (unstable to stable). Gamma ray emission frequently follows beta decay, alpha decay, and other nuclear

Explanation:

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4 years ago

What product is formed when 1-bromopropane reacts with ch3o−?

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3 years ago

What type of solution forms when lithium chloride dissolved in water?

murzikaleks [220]

Answer: strong electrolyte.

Justification:

1) Lithium chloride is an ionic compound, highly soluble in water.

2) This is the chemical equation:

LiCl(aq) → Li⁺ (aq) + Cl⁻ (aq)

3) Due to its ionic character and the small size of the ion Li⁺, LiCl dissociates almost completely, meaning the the solution is a strong electrolyte.

4) Electrolytes are solutions that carry electricity (the iones, charged species, are the carrierr of the electricity)

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