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Ne4ueva [31]
3 years ago
7

Infer: Is the reaction below possible? Explain why or why not. H2O + NaOH NaCl + H2

Chemistry
1 answer:
Rashid [163]3 years ago
3 0

Answer: No because of the equation Hydrogen is brought out of it. This will make the equation uneven therefor it is invalid.

Explanation:

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How many milliliters of 0.130 M HCl are needed to completely neutralize 41.0 mL of 0.107 M Ba(OH)2 solution?
Anvisha [2.4K]

54 mL Ba(OH)2x(0.101 mol Ba(OH)2/1000 mL) x (2 mol OH-/ 1 mol Ba(OH)2 )  = 0.0109 mol OH-

                                 

0.0109 mol OH-x (1mol HCl/ 1 mol OH- ) = 0.0109 mol HCl

                                                     

0.109 mol HCl/(0.130 mol/L HCl) =  0.0839 L HCl

0.0839 L HCl * 1000mL = 83.9 mL of 0.130 M HCl

3 0
3 years ago
Calculate the density of an object whose mass is 352 grams and has a volume of 469 mL please show work
mixer [17]

Answer:

<h2>0.75 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume} \\

From the question we have

density =  \frac{352}{469}  \\  = 0.750533..

We have the final answer as

<h3>0.75 g/mL</h3>

Hope this helps you

4 0
3 years ago
POINTS!!!!
Setler79 [48]
C) 3 Moles
This is because of the molecular structure shown in the image

5 0
3 years ago
216 J of energy is required to raise the temperature of a piece of aluminum from 15.0º C to to 35º C.
ddd [48]

Answer: 12g

Explanation:

The amount of energy (Q) required to raise the temperature of a substance depends on its Mass (M), specific heat capacity (C) and change in temperature (Φ)

Thus, Q = MCΦ

Given that:

Q = 216 joules

Mass of aluminium = ? (let unknown value be Z)

C = 0.90 JºC-1g-1

Φ = (Final temperature - Initial temperature)

= 35°C - 15°C = 20°C

Then, Q = MCΦ

216 J = Z x 0.90 JºC-1g-1 x 20°C

216 J = Z x 18 J°g-1

Z = (216J/18 J°g-1)

Z = 12g

Thus, the mass of the aluminium is 12grams

8 0
3 years ago
Electromagnetic forces are the predominant force in holding what subatomic particles together?
vova2212 [387]
<span><span><span> </span><span>The strong forces oppose the electromagnetic force of repulsion between protons. Like ”glue” the strong force keeps the protons together to form the nucleus. </span>·  The strong forces and electromagnetic forces both hold the atom together.</span><span> </span></span>
4 0
3 years ago
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