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LenaWriter [7]
3 years ago
15

What are 3 sentences about the history of Egypt? Thank you for taking aside time to answer this. Please answer this as quickly a

s possible. :)
Chemistry
1 answer:
Nataly_w [17]3 years ago
5 0
1) The history of egypt is still unclear; artifacts, how the pyramids were built, gods and whatnot.
2) Egypt's history being uncovered in regards to curses and amulets is still being practiced in the country and some others because of the great influence it had.
3) Egyptians being able to construct such grand structures that still stand (pyramids) serves as evidence that proves Egypt was a very advanced civilization at the peak of their advancement.
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Can someone tell me how do I finish this problem?!
Natalija [7]
You can cross multiply, it will be easy
7 0
3 years ago
Guys help please!! any five effects of heat!!​
Bogdan [553]

{\huge {\underline {\underline {\bold {\blue{Effects \:  of \:  Heat}}}}}}

  • <em>Expansion </em><em>of </em><em>particles</em><em> </em><em>of</em><em> </em><em>substances.</em><em> </em>
  • <em>Increase</em><em> </em><em>in </em><em>temperature</em><em>.</em>
  • <em>Change</em><em> </em><em>in </em><em>state</em><em>.</em>
  • <em>Change</em><em> </em><em>in </em><em>physical</em><em> </em><em>property</em>
  • <em>It </em><em>may </em><em>bring</em><em> </em><em>out </em><em>chemical</em><em> </em><em>changes</em><em>.</em>

__________________________________

\tt\underline\orange{hope \: it \: helps}

3 0
3 years ago
Out of Br2 and NaBr which compound is more likely to be more soluble in CCl4
saul85 [17]
Br2 because it is non polar and so is CCl4 and like molecules dissolve like molecules therefore Br2 will dissolve in CCl4
6 0
3 years ago
2. How much heat is released when 432g of water cools down from 710C to 180C?
nadya68 [22]
The heat released by the water when it cools down by a temperature difference AT

is Q = mC,AT

where

m=432 g is the mass of the water

C, = 4.18J/gºC

is the specific heat capacity of water

AT = 71°C -18°C = 530

is the decrease of temperature of the water

Plugging the numbers into the equation, we find

Q = (4329)(4.18J/9°C)(53°C) = 9.57. 104J

and this is the amount of heat released by the water.
7 0
3 years ago
A gold coin contains 3.47 × 10^23<br> gold atoms.<br> What is the mass of the coin in grams?
VashaNatasha [74]

Answer:

Mass = 114.26 g

Explanation:

Given data:

Number of gold atoms = 3.47×10²³ atoms

Mass in gram = ?

Solution:

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.  The number 6.022 × 10²³ is called Avogadro number.

1 mole = 6.022 × 10²³ atoms

3.47×10²³ atoms × 1 mol  /6.022 × 10²³ atoms

0.58 mol

Mass of gold:

Mass = number of moles × molar mass

Mass = 0.58 mol × 197 g/mol

Mass = 114.26 g

4 0
3 years ago
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