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Galina-37 [17]
3 years ago
10

(PLEASE ANSWER ASAP) Which choice is the smallest in mass?

Chemistry
2 answers:
morpeh [17]3 years ago
7 0

Answer: The answer is B-- Electron

Explanation:

soldier1979 [14.2K]3 years ago
4 0

Answer:electron

Explanation:

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en un recipiente se tiene 800 g de una solución al 35% en masa de ácido sulfuroso, de la cual se evapora 80ml de agua. ¿cuál es
Alinara [238K]

The mass percent of sulfurous acid in the new solution : 38.9%

<h3>Further explanation</h3>

<em>In a container you have 800 g of a 35% by mass solution of sulfurous acid, from which 80 ml of water evaporates. What is the mass percent of sulfurous acid in the new solution? data: density of water is 1g / ml.</em>

<em />

solution 1

composition :

  • 35% acid :

\tt 0.35\times 800~g=280~g

  • water :

\tt 800-280=520~g

solution 2(new solution)

composition :

  • water

\tt 520-(80~ml\times 1~g/ml)=440~g

  • Total mass of new solution after water evaporated

\tt 280(acid)+440(water)=720~g

  • %mass of acid in a new solution

\tt \dfrac{280}{720}\times 100\%=38.9\%

5 0
3 years ago
How many hydrogen atoms are in 5.40 mol of ammonium sulfide?
Lelu [443]
Answer Expert Verified
Assuming that the ammonium sulfide formula is (NH4)2S then you can see that there are 2 nitrogen, 8 hydrogen and 2 sulfur atoms for every ammonium sulfide.
Hope that helps
3 0
3 years ago
Most caves form in: *<br> O Igneous rock<br> O Compacted soil<br> O Limestone<br> Sandstone
KonstantinChe [14]
Igneous Rock (I believe)
6 0
3 years ago
Under which conditions will sugar most likely dissolve fastest in a cup of water? open study
Mariana [72]
The sugar would dissolve better under warmer temperatures because the hot particles interfere with the sugars particles.
4 0
3 years ago
Calculate the energy required to move from solid water at 0 degrees C to liquid water at 0 degrees C
Serhud [2]

Answer:

Q = 334\,kJ

Explanation:

Let assume that 1 kilogram of water in solid state at one atmosphere of pressure. The fussion latent heat of 334\,\frac{kJ}{kg}, the heat required to change the phase of water is:

Q = m \cdot L_{f}

Q = (1\,kg)\cdot \left(334\,\frac{kJ}{kg} \right)

Q = 334\,kJ

7 0
4 years ago
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