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KATRIN_1 [288]
3 years ago
12

NO websites or fake links! Help me Look at the pictures!!!! Past due!

Chemistry
2 answers:
yulyashka [42]3 years ago
8 0

Answer:

Your hypothesis is incorrect because warm substances rise when in a colder environment. The correct hypothesis would be : "If the 2 chambers of water are poured side by side, the warmer water will float above the cooler layer because warm water rises and cold water sinks."

Explanation:

andrey2020 [161]3 years ago
6 0

Answer: affceted liquids?

Explanation:

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Which substance will form a solution when mixed in liquid water?
BlackZzzverrR [31]

Answer:

B. NH₃ (l) dissolves in water to form a solution

Explanation:

A solution is a uniform or homogenous mixture of two or more substances. The components of a solution are the solute and solvent. The solute is the substance that is being dissolved in another substance. The solvent is the substance which dissolves the solute.

Mixing the given solutes in water results innthe following:

A. Helium being an inert gas does not dissolve in water at all. Therefore, no solution is formed.

B. Liquid ammonia is very solution in water. When mixed with water, it dissolves in water to form aqueous ammonia solution. Aqueous ammonia is an alkaline solution of ammonia dissolved in water.

C. Silicon (iv) oxide, SiO₂, is a crystalline solid whichnis completely insoluble in water. Mixing it with water does not result in the formation of a solution.

D. Pentane, C₅H₁₂, is a liquid hydrocarbon substance which is insoluble in water. It does not mix with water to form a solution, rather it forms two separate immiscible layers of liquids.

4 0
3 years ago
How many moles of magnesium is 1.25 x 1023 atoms of magnesium?
andrew-mc [135]
The moles of magnesium in 1.25 x 1023 are 20.8 mol.
4 0
3 years ago
If a gas is measured to have a pressure of 1.2 atm at 227 K, and its origina
ICE Princess25 [194]

Answer:

1.05

Explanation:

P1 over t1 is equal to P2 over T2, then solve for X

X/199= 1.2/227

7 0
3 years ago
What investigations never involve hypotheses?
marshall27 [118]
The correct answer is a descriptive investigation.

An investigation which does not involve hypotheses called descriptive investigation.
Hypotheses are termed as scientific hypotheses and require that one can test it. In hypothesis, previous observation can not satisfactorily be explained with an available scientific theory.
Working hypotheses are being proposed for further research.
5 0
3 years ago
Read 2 more answers
Eyeglasses provide as much protection as safety goggles. * true or false
Artyom0805 [142]
False. Eyeglasses do not cover all around the eye however safety goggles do
7 0
3 years ago
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