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jek_recluse [69]
3 years ago
8

Three acid samples are prepared for titration by 0.01 M NaOH:

Chemistry
1 answer:
Kruka [31]3 years ago
8 0
B is the correct answer
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13) Find the mass, in grams, of 5.75 liters of N2.
faltersainse [42]
Molecular weight of N2
gram Atomic weight of N is 14 g.
gram Molecular weight = 14 g×2
= 28 g
Liter concepts
1 liter of gas always occupies 1 gram molecular weight .
Application of the concept
5.75 liter gives 0.257g


1 mole will occupy 28 g

0.257 will occupy 28 g × 0.257
= 7.196 g

The mass of the gas is 7.196 g.

Hope it helps you
8 0
3 years ago
Sand dunes are created when the wind carrying the sand runs into an obstacle A. True B. False
Troyanec [42]

A. True

They are formed behind an obstacle when the wind blows the sand up to it.

3 0
3 years ago
En que se fundamento Moseley para describir la tabla periódica actual?
Burka [1]

Answer:

La tabla periódica de moseley fue una manera de dar solución a esta problemática, ya que nos permite tener a la mano todos los elementos que se han descubierto hasta la actualidad y sus propiedades químicas más resaltantes.

A continuación se Describe una linea del tiempo de la creación de la tabla periodica:

1820 -  se crean las tríadas de Dobereiner.  

1863 - se crea el cilindro de chancourtois.  

1864 - se crean las octavas de newlands.  

1869 - se crea el primer prototipo de la tabla periódica.  

1914 - se fórmula la ley periódica moderna por Moseley.

Explanation:

4 0
3 years ago
Four molecules have carbon as the central atom and hydrogen atoms around it. Which shape would give rise to a polar molecule?
zzz [600]
Four molecules have carbon as the central atom and hydrogen atoms around it. The shape that would give rise to a polar molecule is a bent shape. <span>The bent shape will not be symmetrical which will result to being polar. Hope this answers the question.</span>
7 0
3 years ago
5,6-dimethyl-2-heptyne <br><br> Due in 1 hr pls help me
mina [271]

Answer:

Please see the attached pictures.

Explanation:

☆ To ensure that each carbon has 4 bonds, fill the other bonds with Hs.

4 0
3 years ago
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