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kherson [118]
3 years ago
13

43 Heat is the most common form of energy absorbed or released in chemical reactions. TRUE FALSE

Chemistry
2 answers:
IrinaVladis [17]3 years ago
8 0

True.

Heat content is released in exothermic reactions and absorbed in endothermic reactions.

mariarad [96]3 years ago
5 0
Yup. True. I guess the next would be light energy
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A solution is made by dissolving 23.0 g KOH in 1.60 L H2O. What is the molality of the solution? The density of water is 1.00 g/
artcher [175]
The molarity of a solution is defined as the moles of solute dissolved per kilogram of solvent. Therefore, we first compute the moles of KOH using:

Moles = mass / Mr
Moles = 23 / 56
Moles = 0.41

The volume of solvent is 1.6 liters
The density is 1 gram/cm³ = 1 kg/L
Mass of solvent = density * volume
Mass of solvent = 1 * 1.6
Mass of solvent = 1.6 kg

Molality = moles / kilogram
Molarity = 0.41 / 1.6
Molarity = 0.26

The molality of the solution is 0.26 molal.
4 0
3 years ago
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3 years ago
Which statement describes one feature of Rutherford model of the atom
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\huge{ \color{magenta}{ \fcolorbox{magenta}{black}{ \huge{ \color{white}{ \fcolorbox{aqua}{black}{♡Answer♡ }}}}}}

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2 years ago
What is the molarity of a solution containing 60. grams of NaOH dissolved in 400. mL of water?
Hunter-Best [27]

Answer: 3.75 M

Explanation:

400 mL = 0.4 L

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8 0
3 years ago
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