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3 years ago

-WEEBS ONLY- what anime do you think has the best intro/outro music?

Chemistry

1 answer:

Dmitry_Shevchenko [17]3 years ago

5 0

Answer:

My favorite intros are HxH, Kakegurui, and Jujutsu Kaisen

Explanation:

PS : Calling anime fans weebs is a bit weird, just call us anime lovers! :)

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Fill in the name and empirical formula

nadezda [96]

Answer:

1. Mg(CH3CO2)2 - magnesium acetate

2. NH4CN - ammonium cyanide

3. NaClO3 - sodium chlorate

8 0

4 years ago

90 POINTSSSS!!!

Katarina [22]

Answer:

$\large \boxed{\text{-2043.96 kJ/mol}}$

Explanation:

Assume the reaction is the combustion of propane.

Word equation: propane plus oxygen produces carbon dioxide and water

Chemical eqn: C₃H₈(g) + O₂(g) ⟶ CO₂(g) + H₂O(g)

Balanced eqn: C₃H₈(g) + 5O₂(g) ⟶ 3CO₂(g) + 4H₂O(g)

(a) Table of enthalpies of formation of reactants and products

$\begin{array}{cc}\textbf{Substance} & \textbf{$\Delta_{\text{f}}$H/(kJ/mol}) \\\text{C$_{3}$H$_{8}$(g)} & -103.85 \\\text{O}_{2}\text{(g)} & 0 \\\text{CO}_{2}\text{(g)} & -393.51 \\\text{H$_{2}$O(g)} & -241.82\\\end{array}$

(b)Total enthalpies of reactants and products

$\Delta_{\text{rxn}}H^{\circ} = \sum \left( \Delta_{\text{f}} H^{\circ} \text{products}\right) - \sum \left (\Delta_{\text{f}}H^{\circ} \text{reactants} \right)\\= \text{-2147.81 kJ/mol - (-103.85 kJ/mol)}\\= \text{-2147.81 kJ/mol + 103.85 kJ/mol}\\= \textbf{-2043.96 kJ/mol}\\\text{The enthalpy change is $\large \boxed{\textbf{-2043.96 kJ/mol}}$}$

ΔᵣH° is negative, so the reaction is exothermic.

5 0

3 years ago

Permafrost soil (gelisol) is _______.

Gala2k [10]

<span>Permafrost soil (gelisol) is b. fragile. Permafrost soil is a region of the Earth's surface (ground or soil) that is at a temperature below freezing temperature. This makes it very brittle and sensitive to heat exposure, making it very fragile. This is often found in countries where the climate is very cold such as Canada etc.</span>

3 0

3 years ago

HELP ASAP!

maxonik [38]

Answer:

Electromagnetic Radiation

Activity: TV or Radio

Type: Infrared Waves

Description of use:A television (also known as a TV) is a machine with a screen. Televisions receive broadcasting signals and turn them into pictures and sound. The word "television" comes from the words tele (Greek for far away) and vision (sight). ... Computers and mobile devices also can be used for watching television programs.

7 0

3 years ago

If anyone is taking Integrated Physics and Chemistry (2014) on sos can u pls help me w something !! Thanks

sukhopar [10]

I am so sorry i cant help but good luck

5 0

3 years ago