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dimaraw [331]
3 years ago
9

What is creation in terms of chemical reactions?

Chemistry
1 answer:
shtirl [24]3 years ago
7 0

Answer:

Products

Explanation:

In a chemical reaction, the atoms and molecules produced by the reaction are called products

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Solve and round to the correct number of significant figures: 129 ÷ 29.20
Scilla [17]

4.42

Because when you divide 129/29.20, you get a long string of numbers. 4.417808219178082...

So you round to the significant figure which in this case is 2 decimal places because 29.20 has 2 decimal places.

PS did you draw that car? Cuz im into drawing cars too.

5 0
3 years ago
What mineral property is illustrated by this photograph?​
lbvjy [14]
<h2>Hardness, lustre, and colour.</h2>

Explanation:

These Rocks shown in photographs are made of different types of minerals which have properties as follows:

●The color of the rock is grey, brown and yellow after it is ground into a powder its color is streak.

● The lustre of the rock tells how shiny the rocks are.

● Other properties include hardness, texture, shape, and size.

7 0
3 years ago
How many lead (Pb) atoms are in a 5.32 g sample of pure lead?
Elanso [62]

Answer:

1.55×10²² molecules.

Explanation:

We'll begin by calculating the number of mole in 5.32 g of pure lead (Pb). This can be obtained as follow:

Mass of Pb = 5.32 g

Molar mass of Pb = 207 g/mol

Mole of Pb =?

Mole = mass /molar mass

Mole of Pb = 5.32/207

Mole of Pb = 0.0257 mole

Finally, we shall determine the number of molecules in 0.0257 mole of Pb. This can be obtained as follow:

From Avogadro's hypothesis,

I mole of Pb contains 6.02×10²³ molecules.

Therefore, 0.0257 mole will contain = 0.0257 × 6.02×10²³ = 1.55×10²² molecules.

Therefore, 5.32 g of pure lead (Pb) contains 1.55×10²² molecules.

4 0
3 years ago
Why does argon exist in nature as individual argon atoms and chlorine exist in nature as 2 chlorine atoms covalently bonded toge
Katarina [22]

Answer:

Argon has 8 valence electrons and no extras, it does not require a bond in order to fill its shells, its satisfied by itself.

Chlorine is missing 1 Electron, if it connects with another Chlorine it will be satisfying both of their needs with a Covalent bond.

Explanation:

8 0
3 years ago
What is the best description of osmosis?
Rus_ich [418]
<span>Movement of water from an area of lower solute concentration to an area of higher solute concentration</span>
8 0
3 years ago
Read 2 more answers
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