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photoshop1234 [79]
3 years ago
9

The initial temperature of the water is 25 C. After the reaction, the temperature of the water is 62.8 C. Disregarding any heat

loss to the walls of the container, calculate the Hr0. The specific heat of water is 4.18J/(g•k).
Chemistry
1 answer:
Tom [10]3 years ago
4 0

Answer: The answer would be C. Please give me a thanks :) bye!

Explanation:

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Why does a star expand into a red giant?​
devlian [24]

Answer:

"Hydrogen is still available outside the core, so hydrogen fusion continues in a shell surrounding the core. The increasingly hot core also pushes the outer layers of the star outward, causing them to expand and cool, transforming the star into a red giant."

7 0
2 years ago
Using de Broglie's equation, λ = h/mv which would have a larger wavelength, a slow-moving proton or a fast-moving golf ball? Exp
tatuchka [14]

Answer: Proton will have larger wavelength

Explanation:

\lambda =\frac{h}{mv}  (de-Broglie's equation)

\lambda =\text{wavelenght of the particle}

h= Planck constant

m= mass of the particle

v= velocity of the particle

As we can see from the de-Broglie's equation , that wavelength is inversely proportional to the product of mass into velocity of the object.

The wavelength of proton will be higher than that fast moving golf ball because mass of proton (1.67 \times 10^{-24}g) is very small than that of the golf ball (45.93 g). Proton is moving  at slow velocity and the golf ball is moving with fast velocity by which value of product of mass into velocity of proton will be lower than the value of product of mass into velocity of the golf ball which will result in larger value of wavelength of the proton.

6 0
3 years ago
How would you define self awareness
kondor19780726 [428]
Self-awareness is the ability to focus on yourself and how your actions, thoughts, or emotions do or don't align with your internal standards. If you're highly self-aware, you can objectively evaluate yourself, manage your emotions, align your behavior with your values, and understand correctly how others perceive you.
3 0
3 years ago
Identify whether the description refers to a monomer, a polymer, or both. Macromolecule:
larisa86 [58]

Answer:

Macromolecule: polymer

Repeating units: monomer

Simple molecule: monomer

Covalent bonds: both

Explanation:

A macromolecule is a very large molecule commonly created by the polymerization of smaller subunits called monomers. They are typically composed of thousands of atoms or more.

A  monomer is a molecule that can be reacted together with other monomer molecules to form a larger polymer chain.

Polymers include bounds between nonmetal atoms, therefore, they are joint by covalent bonds

3 0
3 years ago
Read 2 more answers
Urgently
lisabon 2012 [21]

Bond formation is the way in which atoms interact to form compounds.

<h3>What is bond formation?</h3>

Bond formation is the way in which atoms interact to form compounds. The following are the kind of bonds formed by the atoms;

C and AI - ionic bond

N and P - covalent bond

N and O - covalent bond

The bonds in each of the lattices are;

CuO - ionic bond

Hg - metallic bond

P2O5 - covalent bond

P - covalent bond

CaCl2 - ionic bond

The following is a depiction of the processes shown;

Na0 →Na+1 - oxidation

P0→P+5  - oxidation

AI+3 → AI0 - reduction

The balanced reaction equations are;

2H2O + F2 → 2HF + O2

SO2 + 3H2 → H2S + 2H2O

2H2SO4 + C → 2SO2+CO2+2H2O

Learn more about balancing reaction equation:brainly.com/question/22064431

#SPJ1

5 0
2 years ago
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