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Andrej [43]
3 years ago
7

Which statement is TRUE about liquid and gases? *

Chemistry
1 answer:
Levart [38]3 years ago
5 0

Answer:

The Answer is gonna be d. They assume the shape of container

This is the right Answer

I hope you are having a great day :3

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WILL MARK BRAINLIEST! How many liters of 4.0 M NaOH solution will react with 0.60 liters 3.0 M H2SO4?
frutty [35]

Mol h2so4=0,6x3=1,8mol

MolOH-=Mol H+=2molh2so4=1,8x2=3,6mol

=> Mol NaOH=3,6mol=>V naoh= 3,6:4=0,9liters.

So, A is the correct answer

8 0
3 years ago
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Which of the following<br> happens when a substance<br> melts?
Vinil7 [7]

When a substance melts, the solid gains heat, and the motion of the particles increases (particles move faster in liquid form than in solid form).

6 0
3 years ago
When 220 mL of 1.50x10^-4 M hydrochloric acid is added to 135 mL of 1.75x10^-4 M Mg(OH)2, the resulting solution will be________
siniylev [52]

Answer:

Basic

Explanation:

Considering

Molarity=\frac{Moles\ of\ solute}{Volume\ of\ the\ solution}

So,

Moles =Molarity \times {Volume\ of\ the\ solution}

For hydrochloric acid :

Molarity = 1.50\times 10^{-4} M

Volume = 220 mL

The conversion of mL to L is shown below:

1 mL = 10⁻³ L

Thus, volume = 220×10⁻³ L

Moles =1.50\times 10^{-4} \times {220\times 10^{-3}}\ moles

Moles of hydrochloric acid = 0.000033 moles

For Mg(OH)_2 :

Molarity = 1.75\times 10^{-4} M

Volume = 135 mL

The conversion of mL to L is shown below:

1 mL = 10⁻³ L

Thus, volume = 135×10⁻³ L

Moles =1.75\times 10^{-4} \times {135\times 10^{-3}}\ moles

Moles of Mg(OH)_2 = 0.000024 moles

According to the given reaction:

Mg(OH)_2_{(aq)}+2HCl_{(aq)}\rightarrow MgCl_2_{(s)}+2H_2O_{(aq)}

1 mole of Mg(OH)_2 reacts with 2 moles of HCl

Also,

0.000024 mole of Mg(OH)_2 reacts with 2*0.000024 moles of HCl

Moles of HCl = 0.000048 moles

Available moles of HCl = 0.000033 moles

Limiting reagent is the one which is present in small amount. Thus, HCl is limiting reagent.

Thus, HCL will be consumed completely and Mg(OH)_2 will be left over. Thus, the resulting solution will be basic.

4 0
4 years ago
if you are given the number of molecules in an undentified chemical compound, can you calculate the number of moles
krok68 [10]
Divide it by avagardo's constant that should work as its the number of particles. 

8 0
3 years ago
What is the mass of the block of iron illustrated below?
Mandarinka [93]
VOLUME= 5cm*10cm*2cm =100cm^3
but density of iron=7.874g/cm^3
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mass of that block = 787.4g
7 0
3 years ago
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