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True [87]
3 years ago
15

Consider the ranges of pitches made by these instruments and vocals.

Chemistry
2 answers:
bekas [8.4K]3 years ago
9 0

Answer:

D is correct

Explanation:

EDG 2021

Vanyuwa [196]3 years ago
4 0

Answer:

<h2>its violin, clarinet, french horn, tuba</h2>

Explanation:

just did the test:D can I get brainliest?

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Change the coefficients until the reaction is balanced. (also if anyone could help me find the rest of the gizmos I would be ver
Artemon [7]

Answer:

1Na₂S + 1Cd(C₂H₃O₂)₂ →  1CdS + 2NaC₂H₃O

Explanation:

1Na₂S + 1Cd(C₂H₃O₂)₂ → 1CdS + 1NaC₂H₃O₂

1Na₂S + 1Cd(C₂H₃O₂)₂ → 1CdS + 2NaC₂H₃O₂

(on the reactant side there are two molecules of C₂H₃O₂ and 2 atoms of Na, so in order to balance that we put the coefficient 2 on NAC₂H₃O₂)

So the final product is

1Na₂S + 1Cd(C₂H₃O₂)₂ →  1CdS + 2NaC₂H₃O₂

6 0
3 years ago
Será lançado na próxima quarta-feira, 1º de julho, em São Bernardo do Campo (SP), o primeiro ônibus brasileiro a hidrogênio. [..
slamgirl [31]
Sera bu they are going there for fun
4 0
3 years ago
For the reaction:
Zepler [3.9K]

Answer:

The equilibrium constant for CO now

= 0.212 M

For H₂O

= 0.212 M

For CO₂ = x = 0.2880 M

For H₂ = x = 0.2880 M

Explanation:

The chemical equation for the reaction is:

CO(g) + H2O(g) ⇌ CO2(g) + H2(g)

The ICE Table for this reaction can be represented as follows:

                   CO(g)      +   H2O(g)   ⇌    CO2(g)   +     H2(g)

Initial            0.5                0.5                   -                      -

Change        -x                   -x                      + x                + x

Equilibrium   0.5 -x           0.5 - x

The equilibrium constantK_c = \dfrac{[x][x]}{[0.5-x][0.5-x]}

K_c = \dfrac{[x]^2}{[0.5-x]^2}

where; K_c = 1.845

1.845 = \begin {pmatrix} \dfrac{x}{0.5-x} \end {pmatrix}^2

\sqrt{1.845}= \begin {pmatrix} \dfrac{x}{0.5-x} \end {pmatrix}

1.3583= \begin {pmatrix} \dfrac{x}{0.5-x} \end {pmatrix}

1.3583 (0.5-x) = x

0.67915  - 1.3583x = x

0.67915  = x +  1.3583x

0.67915 = 2.3583x

x = 0.67915/2.3583

x = 0.2880

The equilibrium constant for CO now = 0.5 - x

= 0.5 -  0.2880

= 0.212 M

For H₂O = 0.5 - x

= 0.5 -  0.2880

= 0.212 M

For CO₂ = x = 0.2880 M

For H₂ = x = 0.2880 M

3 0
3 years ago
How do movements and interactions of air masses cause change in the weather?
ollegr [7]
The way the air moves affects the weather, because winds move heat and cold temperatures as well as moisture from one place to another, transporting conditions from one geographical zone to another. The way winds pass each other, and the direction they move, also affects what weather a region will see on any given day.
5 0
3 years ago
What is the percent composition of NaCl? Show all work please
Amiraneli [1.4K]

Answer:

NaCl = 58.44g/mol

Explanation:

Na = 22.99/58.44 × 100 = 39.33%

Cl = 35.45/58.44 × 100 = 60.66%

7 0
3 years ago
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