PLZ HELP IT IS SCIENCE
when sodium hydroxide dissolves in water is it A. physical change or B. chemical change

Answers

Answer 1

Answer:b

Explanation: you can’t see the difference of it changing

Answer 2

When sodium hydroxide dissolves in water then it is a chemical change Hence option B is true.

A chemical change is a change of materials into another, new materials with different properties, and one or more than one new substance are formed.

Given that,

Sodium hydroxide dissolves in water.

When sodium hydroxide dissolves in water the bond between the sodium and hydroxide breaks leading to the formation of ions.

Any reaction associated with the breaking of bonds and leads to new products is known as chemical change.

Therefore, sodium hydroxide dissolves in water as a chemical change.

Hence option B is true.

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Related Questions

In an isosceles trapezoid, the lower base is 15, the upper base is 5, and each leg is 6. How far must each of the legs be extended to form a triangle?

Answers

Answer:

3 units

Explanation:

Let the side of the triangles to be extended be x. Both sides of the triangle are equal.

Applying similarly theorem of two similar triangles, the following proportion can be set up to solve for the value of x as shown below:

[tex] \frac{15}{5} = \frac{6 + x}{x} [/tex]

Cross multiply

[tex] 15 \times x = (6 + x) \times 5 [/tex]

[tex] 15x = 30 + 5x [/tex]

Subtract both sides by 5x

[tex] 15x - 5x = 30 [/tex]

[tex] 10x = 30 [/tex]

Divide both sides by 10

[tex] x = 3 [/tex]

Therefore, the legs must be extended 3 units more to form a triangle.

Each of the legs be extended by 3 to form a triangle

Using the theorem of two similar triangles, Assuming that sides of the triangle are equal, we can extend the side of the triangles with [tex]y[/tex]

We can create a proportion as;

[tex]\frac{ y }{ 6+y } = \frac{5}{15}[/tex]

Cross multiply, we have

[tex]30 =15y-5y[/tex]

[tex]30=10y[/tex]

[tex]y= \frac{30}{10}[/tex]

[tex]y=3[/tex]

Therefore, each of the legs be extended by 3 to form a triangle

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Which of these is an example of something that sociology tries to help people
understand?
A. How ancient people farmed crops
B. How society affects our choices
C. How life began on earth
D. How nutrition affects brain function

Answers

Answer:

B. How society affects our choices

Explanation:

Sociology can be defined as a social science that deals with the study of the socio-cultural interaction of humans with respect to the structure, functioning and development of their society.

The main purpose of sociology is to develop and enhance human knowledge or understanding of important socio-cultural processes through the gathering and analysis of all aspects of the social life of the people living in a society.

Hence, how society affects our choices is an example of something that sociology tries to help people understand.

For example, how to treat employees nicely, what candidate to vote for in a presidential election, what career path to choose in life, when to marry, who to marry are all questions (challenges) that sociology help humans to understand.

Critiquing falls within the evaluation process of thinking. In this assignment you will practice high-order thinking skills at the evaluating level by writing a movie critique. Once you have selected a movie, write a 500-word report evaluating the entertainment value you experienced for each of the movie components below. Again, this is not a professional movie critique. The goal is to evaluate and express your personal entertainment level in the following areas:

Answers

Hello. You forgot to add this part to your question:

The goal is to evaluate and express your personal entertainment level in the following areas: Story Plot Main Characters Plausibility Special Effects

Answer and Explanation:

The chosen film was: The breakfast Club.

The breakfast Club was a film produced in 1985 and tells the story of five teenagers who had some kind of bad behavior at school and had to spend an entire Saturday in detention. These teenagers do not know each other and are part of totally different groups and live different realities as well. At first the plot seems simple, but it becomes very profound when the characters begin to tell their dramas and interact with each other, even in the midst of their differences. Detention becomes a type of "group therapy" and it's amazing to see how the characters manage to let go with real people, who have problems.

The film is extremely plausible in most factors, especially when it shows that even with the moment of complicity that teenagers have, they will not maintain their friendship, as they are very different from each other.

As the film takes place in the real world and portrays real dramas, special effects were not used, but this does not diminish the quality of the film, which establishes itself as fun, dramatic and full of layers with different meanings.

Which of the following best describes the speaker in "To His Coy Mistress"?
O A. Meek and passive
B. Aggressive and persuasive
C. Casual, nonchalant, and uninterested
O D. There are two different speakers.
E. Fearful and depressed

Answers

Answer:

B. Aggressive and persuasive

Explanation:

The statement that best describes the speaker in "To His Coy Mistress" is aggressive and persuasive. The correct option is B.

What is "To His Coy Mistress" about?

The English author and politician Andrew Marvell wrote the metaphysical poem "To His Coy Mistress" possibly during or right before the English Interregnum.

In 1681, it was published posthumously. This poem is regarded as one of Marvell's best and may be the most well-known carpe diem poetry ever written in English.

The irony of To His Coy Mistress is found in the passages where the poet essentially warns the mistress that they will be waiting until they pass away if they put off getting together as long as she would want.

He makes reference to the possibility that worms would steal her soul if she put off seeing him indefinitely.

The phrase "aggressive and persuasive" best sums up the speaker in "To His Coy Mistress."

Thus, the correct option is B.

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In a well-constructed essay, explain how Frost uses imagery and figurative language to communicate the central theme of this poem.


100 points!! WILL NAME BRAINLIST!

Answers

Answer:

In the poem "Mending Wall", Robert Frost uses language and paragraph structure in order to develop controversial ideas about the necessity of change and stirring rebellion, and about maintaining individuality.

Explanation:

Frost uses imaginary and figurative language by Costantino emanò l'Editto di Milano, che accettava il cristianesimo: 10 anni dopo, aveva bec

At what age do children start babbling with sophistication?
A. ten to twelve months
B. twelve to twenty-four months
C. birth to six months
D. six to ten months

Answers

i thought it was 4-6 months but that isn’t an option

MARKING BRAINLIEST: QUESTION ABOUT DIALOGUE : Ok so i'm writing a memoir from the first time I smoked for my AP LANG class. I just need someone to tell me if my punctuation and dialogue are all good. If my dialogue isn't, could you tell me where I messed up and how to fix it?
(if some swear words look weird its cuz i had to change them so brainly would let me post this)

Dialogue:
Everyone was looking at me, waiting expectantly for me to smoke it. "Ayo imma have to pass on this one. I'm just not the smoker type," I said with a nervous laugh. "That's cap," one of the guys yelled across the circle. Josh looked at me with a sideways stare while all the guys began egging me to take just one hit. To my left, AJ, a kid I've only met a few times, started taunting me until I began to feel butterflies creep up again. "My guy, just take the hit. You got all these fine ahh females around, and you're making yourself look like a bussy every second you waste," he said. Tyler, another junior, chimed in and said, "Naw, he's just after Emma they've been practically on top of one another. Ain't that Jabreel?"

Answers

It looks good the punctuation is on spot too

What is the purpose of the farming technique shown here?

a. to enable farmers to plant a new crop without plowing up the old crop

b. to allow a crop that requires flooded fields to be grown on a slope

c. to provide a windbreak and avoid erosion by wind

d. to allow for crop rotation so that friends do not become depleted of minerals

Answers

I would say b for this answer have a good night
The answer is B! It’s called terrace farming!

how to fix the israel-palestine conflict. I NEED THIS NOW

Answers

Answer:

You can't

Explanation:

You just cant

What is the best kind of boundary between states (countries)

Answers

Answer:

natural boundry

Explanation:

as it can't be increased or decreased and no chance of conflict of boundry....hope it will help

Natural boundary because it can’t increase or decrease in conflict

what do the points do on here aside from leveling up what do they do.

Answers

Answer:

well to ask a question you must have a specific amount of points. to get points you have to answer a question. so without points, nobody would answer questions.

Explanation:

They help other people know that you are you happy to help and that you are slightly intelligent enough to have the right answer and the higher up you are the smarter and the more helpful you seem like

Can dialogue in a memoir still be considered a part of narration mode since its technically answering the question of "what happend?"

Answers

Yes, it can. It’s still technically dialogue, just in the past. Hopefully this helped! x
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