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Schach [20]
3 years ago
13

I need help with three questions plz help me out. If i don't past i won't progress onto the next grade.

Chemistry
1 answer:
8_murik_8 [283]3 years ago
3 0
I can help I need the Qs
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You have a balloon containing 1 L of air at STP in a vacuum chamber. What will the volume of the balloon be when you reduce the
Ipatiy [6.2K]
P1V1/T1=P2V2/T2   P2=1/2 P1 V1=1 T1=298K

1 P1/298= (1/2) P1V2/373  cross P1

1/298=1/2V2/373
1/298=1/V2 746
v2=746/298
V2=2.5L


5 0
4 years ago
Which of the following word best describe the diagram
adoni [48]

does it have multiple choice

3 0
4 years ago
True or False: A property is a way to
kenny6666 [7]

Answer:

True

Explanation:

Here is an example: chemical properties include flammability, toxicity, acidity, reactivity. we observe the changes of these properties. Therefore, It's true.

5 0
3 years ago
This is a graded Quiz and I need all of the answers to be right but I am not sure so I need help this is a 3.08 science Quiz and
Setler79 [48]

Answer:

1 true

Explanation:

bcz it is true

8 0
3 years ago
What is the molarity of a solution prepared by dissolving 30.0g NaCl in enough water to make a 0.300 L solution?
meriva

Answer:

D.) 1.71 M NaCl

Explanation:

Molarity equation: M= n/v

n= moles of solute

v=liters of solution

NaCl= 58.443 g/mol

30g NaCl / 58.443g/mol = 0.5133(this is n)

0.5133 mols/0.300 L=1.71115674 M

5 0
3 years ago
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