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3 years ago

What three human body systems coordinate cause an arm to move

Chemistry

1 answer:

tia_tia [17]3 years ago

8 0

(A) nervous, muscular, skeletal

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3 natural chemicals a part of our life

Mademuasel [1]

Sodium chloride, methane gas and water

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3 years ago

Read 2 more answers

Using complete subshell notation (1s22s22p6, and so forth), predict the electron configuration of each of the following atoms: a

masha68 [24]

Answer: a) $C:6:1s^22s^22p^2$

b) $P:15:P:1s^22s^22p^63s^23p^3$

c) $Sb:1s^22s^22p^63s^23p^64s^23d^{10}4p^64d^{10}5s^25p^3$

Explanation:

Electronic configuration represents the total number of electrons that a neutral element contains. We add all the superscripts to know the number of electrons in an atom.

The electrons are filled according to Afbau's rule in order of increasing energies and thus the electronic configuration:

a) $C:6:1s^22s^22p^2$

b) $P:15:P:1s^22s^22p^63s^23p^3$

c) $Sb:1s^22s^22p^63s^23p^64s^23d^{10}4p^64d^{10}5s^25p^3$

4 0

4 years ago

Explain with equations and calculations, when necessary, whether an aqueous solution of each of these salts is acidic, basic, or

My name is Ann [436]

CaCl₂ is a basic salt.

Think about the same query for NaCl, a substance that most chemistry students are familiar with. A salt is always produced when an acid and a base combine, and this is how you make NaCl. NaOH is a basic, while HCl is an acid.

NaCl + H2O NaOH + HCl

Additionally, the salt will be neutral since the utilized bases (NaOH) and acids (HCl) are both strong acids and bases, respectively (if any or both are weak, then things change).

Ca(OH)2 can be used in place of NaOH when reacting with HCl.

Ca(OH)2 + 2HCl becomes CaCl2 + 2H2O.

CaCl2 is therefore neither an acid nor a base, by comparison thus, neutral salt alone.

<h3>What are neutral salts?</h3>

Strong acids and strong bases combine to generate neutral salts, which are so named because the color of their aqueous solutions is neutral to litmus. Examples include the neutral salts NaCl, KCl, K2S04, NaN03, KCl03, and KClO4.

To learn more about neutral salts:

brainly.com/question/3103303

#SPJ4

6 0

2 years ago

The pressure of 2.73 mol of an ideal gas in an enclosed rigid container at 20.3° C is 153kPa. What is the volume of the containe

prohojiy [21]

The answer is 43.5 l of ideal gas will be produced

5 0

3 years ago

I need help with my science vocabulary!!! Please help!

AVprozaik [17]

Answer:

1. B

2. E

3. A

4. D

5. C

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Hope I helped!!!

GL :)

5 0

3 years ago