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MakcuM [25]
3 years ago
7

What do you think the scientific question is for the boiling water experiment

Chemistry
1 answer:
Mila [183]3 years ago
4 0

Answer:

Scientific Question: ... I will boil water and add a substance like salt to see if the boiling point increases.

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How many hybrid orbitals do we use to describe each molecule c2h5no (4 c−h bonds and one o−h) key?
yarga [219]

Answer:

see attached

Explanation:

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Describe how phospholipids form a barrier between water inside the cell and water outside the cell
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7 0
2 years ago
Can swords shatter from cold temperatures
sp2606 [1]
Depends on how the sword is made, what materials are used and temperature used but yes they can shatter.

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6 0
3 years ago
Determine the pH of a 2.8 ×10−4 M solution<br> of Ca(OH)2.
shepuryov [24]

Answer:

pH = 10.75

Explanation:

To solve this problem, we must find the molarity of [OH⁻]. With the molarity we can find the pOH = -log[OH⁻]

Using the equation:

pH = 14 - pOH

We can find the pH of the solution.

The molarity of Ca(OH)₂ is 2.8x10⁻⁴M, as there are 2 moles of OH⁻ in 1 mole of Ca(OH)₂, the molarity of [OH⁻] is 2*2.8x10⁻⁴M = 5.6x10⁻⁴M

pOH is

pOH = -log 5.6x10⁻⁴M

pOH = 3.25

pH = 14-pOH

<h3>pH = 10.75</h3>
3 0
3 years ago
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