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2 years ago

CH4 + 2O2 CO2 + 2H2O + Heat

Chemistry

2 answers:

malfutka [58]2 years ago

8 0

Answer:The answer is c releases heat.

Explanation:

Murljashka [212]2 years ago

7 0

D. Heat is absorbed by the reaction

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Condensation point and freezing point of argon in KELVIN.

vesna_86 [32]

Answer:

Condensation: 423.3 K

Freezing: 83.96 K

(this is all i could figure out :) hope it helps)

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2 years ago

If I added 50 mL of a 1.0 M HCIO2 solution to 50 mL of a 1.0 M NaOH

kozerog [31]

Answer:

pH=7

Explanation:

0.05 L*1.0M= 0.05 mol HClO2 and 0.05 mol NaOH

HClO2 + NaOH ---> NaClO2 + H2O

0.05 mol 0.05 mol

As we can see acid and base react completely, solution will be neutral, so pH =7

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2 years ago

Which list describes the properties of a liquid?

iris [78.8K]

It is B: Fixed volume, takes the shape of the container

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2 years ago

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According to the law of conservation of mass, if an element A has an atomic mass of 2 mass units and element B has an atomic mas

LenaWriter [7]

The law of conservation of mass states that mass is neither created nor destroyed. Since we have 2 g/mol of A and 3 g/mol of B then AB should be equal to the sum of their molar mass that is

2 g/mol + 3 g/mol = 5 g/mol AB

for the case of A2B3

A2 = 2 * 2 = 4 g/mol
B3 = 3 * 3 = 9 g/mol

therefore A2B3 = 13 g/mol

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3 years ago

I really need help it's urgent help ! Don't ignore it .Your work will be appreciated and don't spam

gtnhenbr [62]

ツ here your answer

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A)Potassium bromide(aq) + Barium iodide(aq) → Potassium iodide(aq) + Barium bromide(s)

2KBr(aq)+BaI2(aq) → 2KI(aq)+BaBr2(s)

B)Balance the Chemical Equation for the reaction of calcium carbonate with hydrochloric acid:
CaCO3+ HCl -> CaCl2 + CO2 + H2O To balance chemical equations we need to look at each element individually on both sides of the equation. calcium carbonate is a chemical compound with the formula CaCO3.

Mark me in brainlist

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2 years ago