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Phoenix [80]
3 years ago
15

What scientist use the scientific method to determine if cold was a substance?

Chemistry
1 answer:
DerKrebs [107]3 years ago
6 0

Answer:

diamns

Explanation:

You might be interested in
2C6H6 + 1502 →12CO2 + 6H20
solmaris [256]

Answer:

.926 moles

Explanation:

Rounding :

H2 0 = 18 gm/mole

   50 gm would then be   50 / 18 = 2.7777 moles of water

every two moles of 2 C6H6   produces   6 moles of water

   2.7777/6  * 2 = .926 moles

5 0
2 years ago
Help me pleaseeeeeeee​
xxMikexx [17]

Answer:

1. c.

2. d.

3. d.

4. a.

5. a.

6 0
3 years ago
A coefficient is a number listed before a compound or atom, telling how many of the compounds are needed so that the Law of Cons
mezya [45]

Answer:

See explanation

Explanation:

The law of conservation of mass states that mass can neither be created nor destroyed. This implies that in a chemical reaction, we can only have the same number of atoms of each element on both sides of the reaction equation.

If we write  4Fe2S3 it means that we have;

4 * 2 = 8 atoms of Fe

4 * 3 = 12 atoms of S

8 + 12 = 20 atoms in all

5 0
3 years ago
How much energy is absorbed when 10 grams of gold increases in
ra1l [238]

Answer:

6.45 joules

Explanation:

energy=10×(55-50)×0.129

=1.29×5

=6.45 J

hope this helps

please like and Mark as brainliest

7 0
3 years ago
What are the ionic bonds
zhuklara [117]

Explanation:

Ionic bonds are bonds formed as a result of the electrostatic attraction between two species.

  • This bond type is an interatomic bond.
  • It forms when two specie with a large electronegative difference between them combines.
  • This is usually a metal and a non-metal.
  • The metal loses its valence electrons and becomes positively charged.
  • The non-metal gains the electron and becomes negatively charged.
  • An electrostatic attraction between the two specie leads to the formation of an ionic bond.
  • They are solids with a high melting point.
  • They are soluble in polar solvents.

learn more:

Ionic bonds brainly.com/question/6071838

#learnwithBrainly

3 0
3 years ago
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