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Fiesta28 [93]
3 years ago
8

Which solution is a homogeneous mixture?

Chemistry
1 answer:
astra-53 [7]3 years ago
4 0

Answer:

soil

Explanation:

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Why might people want to study different rocks and minerals?
Blababa [14]

Answer: because it's nice

Explanation:

7 0
4 years ago
I need help with this i'm really dumb.<br> Balance<br> p4+o2 ----&gt; p4o10
kogti [31]

Answer:

P4 + 5O2 → P4O10

Explanation:

White Phosphorus - P4

Dioxygen - O2

Tetraphosphorus Decaoxide - P4O10

4 0
4 years ago
A balloon contains 3300 mL of helium gas at 63 °C. What is the final volume, in milliliters, of the gas when the temperature cha
Nesterboy [21]

The final volume : 3.4 L

<h3>Further explanation</h3>

Charles's Law  

When the gas pressure is kept constant, the gas volume is proportional to the temperature  

\tt \dfrac{V_1}{T_1}=\dfrac{V_2}{T_2}

V₁=3300 ml

T₁=63 + 273=336 K

T₂=78+273=351 K

the final volume :

\tt V_2=\dfrac{V_1.T_2}{T_1}\\\\V_2=\dfrac{3300\times 351}{336}\\\\V_2=3447.3~ml\rightarrow 2~sig.~fig.\rightarrow 3.4~L

8 0
3 years ago
The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is
Rudik [331]

Answer:

1.  C. helium

2.  D. oxygen and acetylene

3.  B.  deliquescence

4.  C.  cutting very hard surfaces

5.  B.  3.5%

Explanation:

5 0
3 years ago
Calcular la cantidad de NaOH necesaria para preparar medio litro de disolución 2,5 N. (Dato: peso molecular del NaOH = 40 g/mol)
kolbaska11 [484]

Answer:

The amount of NaOH required to prepare a solution of 2.5N NaOH.

The molecular mass of NaOH is 40.0g/mol.

Explanation:

Since,

NaOH has only one replaceable -OH group.

So, its acidity is one.

Hence,

The molecular mass of NaOH =its equivalent mass

Normality formula can be written as:Normality=\frac{mass of solute NaOH}{its equivalent mass}  * \frac{1}{volume of solution in L} \\

Substitute the given values in this formula to get the mass of NaOH required.

2.5N=\frac{mass of NaOH}{40g/mol} *\frac{1}{1L} \\mass of NaOH=2.5N*40gmol\\                         =      100.0g

Hence, the mass of NaOH required to prepare 2.5N and 1L. solution is 100g

8 0
3 years ago
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