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alukav5142 [94]
3 years ago
9

Can someone do my watershed project ill give brainly and 80 points

Chemistry
1 answer:
Natalka [10]3 years ago
6 0
What exactly is the project about ?????
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How can you drop two eggs the fewest amount of times, without them breaking? Whoever gets this right I will mark them brainlyest
Alekssandra [29.7K]

Answer:

Okay well simply drop it from one inch on to the ground and it won't break and you could put it into a basket with bubble wrap.

Explanation:

Well if you wrap the egg into bubble wrap a few times them put it into a basket (its your choice) then it won't break because the bubble wrap will just pop a few times but sometimes it depends on where you are dropping it from.

Have a blessed day bye! ;)

6 0
3 years ago
The tilt of the Earth on its axis causes
Ket [755]
The seasons. This is because when Earth is on an angle, different parts of the world get different amounts of heat, making temperatures different, and therefore changing the environment.
4 0
2 years ago
Read 2 more answers
A 0.69-g sample of lime (CaO) is dissolved in enough water to make 1535 mL of solution. Calculate the pH of of the solution.
Marizza181 [45]

Answer:

pH = 12.2

Explanation:

Given data:

Mass of lime = 0.69 g

Volume = 1535 mL (1535 / 1000 = 1.535 L)

pH of solution = ?

Solution:

First of all we will determine the molarity.

Molarity = moles of solute / volume in litter

Number of moles = mass / molar mass

Number of moles = 0.69 g / 56.1 g/mol

Number of moles = 0.0123 mol

Molarity = moles of solute / volume in litter

Molarity = 0.0123 mol / 1.535 L

Molarity =  0.008 M

One mole of CaO neutralize two mole of OH⁻.

0.008 M×2 = 0.016 M

[OH⁻] = 0.016 M

pOH = -log [OH⁻]

pOH = [0.016]

pOH = 1.8

14 = pH +pOH

pH = 14 - pOH

pH = 14-1.8

pH = 12.2

4 0
2 years ago
4. Define power and explain how to determine power.
Ratling [72]
The rate of doing work is called power of an object.
It is also defined as the work done by an object per unit time. Mathematically, its formula is given by :
, W is work done and t is time taken.
The SI unit of power is watts and its commercial unit is kWh.
1 watt = J/s or N-m/s.
5 0
2 years ago
The empirical formula of styrene is CH; the molar mass of styrene is 104.14 g/mol. How many H atoms are present in a 7.80 g samp
Makovka662 [10]

Answer:

In 7.80 g of styrene, we have 3.60×10²³ atoms of H

Explanation:

Empirical formula of styrene is CH

Molecular formula of styrene is C₈H₈

So, 1 mol of styrene has 8 moles of C and 8 moles of H and 1 mol weighs 104.14 grams. Let's make a rule of three:

104.14 g (1 mol of C₈H₈) have 8 moles of H

Then 7.80 g would have ( 7.80  .8) / 104.14 = 0.599 moles

As we know, 1 mol of anything has NA particles (Avogadro's Number,  6.02×10²³), so 0.599 moles will have (mol . NA) particles

0.599 mol . 6.02×10²³ atoms / 1 mol = 3.60×10²³ atoms

3 0
3 years ago
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