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Komok [63]
3 years ago
7

¿sistemas materiales de sustancia pura?​

Chemistry
1 answer:
lianna [129]3 years ago
6 0

Hay tres fases principales: sólida, líquida y gaseosa.

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How many moles are in 5.0 x 10 *23 atoms of iron?
tamaranim1 [39]
1 mole ------------ 6.02 x 10²³ atoms
? moles ----------- 5.0 x 10²³ atoms

moles = 5.0 x 10²³ / 6.02 x 10²³

= 0.830 moles

hope this helps!
7 0
3 years ago
Predict the products and write the balanced chemical equation for this reaction. Include the physical state of the product(s).
sukhopar [10]

Answer:

Al(C2H3O2)3 (aq) + 3AgNO3 (aq) ------>Al(NO3)3(aq) + 3Ag(C2H3O2)(s)

Explanation:

A chemical reaction refers to an interaction between two or more chemical species that leads to the formation of other new chemical species.

There are many types of chemical reactions. The type shown above is called a double replacement reaction. In this type of reaction, ions exchange partners in the product.

A chemical reaction is said to be balanced when the number of atoms of each element on the left hand and right hand sides of the reaction equation are exactly the same.

5 0
3 years ago
a fraction collected during distillation ethanol-water what is the mass of ethanol that is present in this fraction
AURORKA [14]

Answer:

80 kg

Explanation:

because the liquid with high boiling point is going to be collected the first

4 0
2 years ago
I'm very confused can someone help me please I would really appreciate it
sasho [114]
1. temperature is dependent
2. energy is independent
3. the graph looks like a line sloping upward
4. the line means that as energy increases the temperature also increases
5. a straight line would mean that as energy increases temperature remains constant
sorry that's all I can do
7 0
3 years ago
WORTH 100 POINTS PLEASE HURRY!!!!!!!!
neonofarm [45]

Answer:

The answer is B

Explanation:

Less air means less air pressure. At a certain point, there is very little air pressure to push against the outward pressure of the helium inside the balloon. It will then expand until the rubber breaks, and the balloon bursts

5 0
3 years ago
Read 2 more answers
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