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scoundrel [369]
3 years ago
6

What are 3 examples of physical change?

Chemistry
1 answer:
bazaltina [42]3 years ago
3 0

Just breaking stuff so yea that’s it

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PLEASEEE PLEASEEE HELP
kati45 [8]

Answer:

= 49.674 g NaCl

Explanation:

From the equation;

1 mole of Sodium metal produces 2 moles sodium chloride

This means;

23 g of Na will produce 116.88 g of NaCl

Therefore;

11.5 g will generate;

 = (11.5 × 116.88)/23

 =  58.44 g of NaCl

But;

Percentage yield = (Actual yield/Theoretical yield)× 100%

         85 /100 = Actual yield /58.44 g

Thus;

Actual yield = 0.85 × 58.44

                  = 49.674 g NaCl

3 0
2 years ago
According to the pH chart, which is the strongest base?
Gnoma [55]

Answer:

NaOH

Explanation:

HCl is a strong acid

Blood has a pH around 7.35, making it only slightly basic

Saliva has a pH around 6.7, making it slightly acidic

4 0
3 years ago
Read 2 more answers
What is the molar mass of C4H2?
fenix001 [56]

Answer:

(12×4)+(1×2)=50

Explanation:

mass of Carbon is 12....mass of hydrogen is 1

6 0
3 years ago
What does it mean for an acid and base to neutralize each other?
ruslelena [56]
This means that they mixed .
6 0
3 years ago
I need help please WOTH this
barxatty [35]

Answer:

Kenma I'll help you! it's B.

Explanation:

I hope I helped you Kenma

7 0
3 years ago
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