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Tpy6a [65]
3 years ago
14

HELP ASAP SCIENCE PIC IS BELLOW HURRY (pls) i will mark you brainliest and will give you 17 points

Chemistry
1 answer:
kenny6666 [7]3 years ago
7 0

Answer:

Can I have the answer choices?

Explanation:

I think I know what it is but I want to be sure

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Ice floats on water. For most other substances however, the solid sinks in the liquid. Classify each of these statements as true
Brut [27]

Answer:

See explanation below

Explanation:

Water has the anomality of having the solid less dense than the liquid state. The reason for this is that  the hydrogen bonds in the solid ice forces the molecule to occupy more room to properly have the stability afforded by the hydrogen bonds. That is the reason why ice floats on water.

The other interesting consequence of this anomality is that the slope of the solid/liquid phase boundary is negative since at higher pressures the ice can be changed to its liquid phase which can be seen from the negative slope of the solid/liquid boundary.

A) True

B) False

C) False

D) True

E) False

F) True close up to 4 ºC when the water molecules start to behave like other liquids, that is the density of the liquid decreases.

G) True

H)  True ( repeated question)

8 0
3 years ago
How many hydrogen atoms are in 1.50 x 10(22) molecules of water. Show your work.
aleksandrvk [35]

Answer:

option B is a right answer

Explanation:

please follow me

and as thanks for my answer

5 0
3 years ago
#1/ 81.8 grams carbon 18.2 grams hydrogen molar mass 132.0g/mol.
dlinn [17]

Answer:

#2 Empirical formula _Na3S4O9____

Molecular formula ___Na6S8O18__

Explanation:

4 0
3 years ago
PLEASE HELP WITH PAGE 1 FOR QUESTIONS 1, 2, 3 WITH THE GRAPHING THANK YOU.
Scrat [10]
I need a picture in order to answer that question.
6 0
3 years ago
A 150 mL of oxygen gas is collected over water at 20 °C and 758 torr. What volume will the same sample of oxygen occupy at STP w
Stella [2.4K]

Answer:

The volume would be; 136.17 ml

Explanation:

Volume V1 = 150 mL

Temperature T1 = 20°C + 273 = 293 K

Pressure  P1 = 758 - 17.54 = 740.46 torr

At STP;

Volume V2 = ?

Pressure P2 = 760 torr

Temperature T2 = 273 K

Using the general gas equation;

P1V1 / T1   = P2V2 / T2

Making V2 subject of formulae;

V2 = P1V1T2 / T1P2

Inserting the values we have;

V2 = 740.46 * 150 * 273  /  293 * 760

V2 = 136.17 ml

3 0
3 years ago
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