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worty [1.4K]
2 years ago
9

How to balance a equation ​

Chemistry
1 answer:
Alona [7]2 years ago
7 0

Answer:

Count the atoms of each element in the reactants and the products then use coefficients. You place them in front of the compounds if needed.

Hope this helps!

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Which models of the atom from task 1 are not supported by Rutherford's experimental evidence? For each
Alecsey [184]

Answer:

Dalton's atomic model and Rutherford model

Explanation:

There were differences in the models:

Thompson's experiment showed that atoms contained tiny negatively charged particles called electrons.

On the other hand, Rutherford gold experiment led to the conclusion that the atom is a empty space with tiny, dense and positively charged nucleus.

Dalton thought that atoms were the smallest units of matter that could not be broken down further. This assumption continued to hold until it was later discovered that the atom was composed of subatomic particles.

8 0
3 years ago
Which atom would be neutral?
mezya [45]

Answer:

The amount of charge on a single proton is equal to the amount of charge possessed by a single electron. A proton and an electron have an equal amount but an opposite type of charge. Thus, if an atom contains equal numbers of protons and electrons, the atom is described as being electrically neutral.

4 0
3 years ago
(ii) Arrange the following metals in decreasing order of their reactivity:<br>Fe, Zn, Na, Cu, Ag​
ratelena [41]

Answer:

Given Elements are

  • Ferrus(Fe)
  • Zinc(Zinc)
  • Sodium (Na)
  • Copper (Cu)
  • Silver(Ag)
<h3>Decreasing Order:-</h3>

Na>Zn>Fe>Cu>Ag

<h3><u>Expla</u><u>nation</u><u>:</u><u>-</u></h3>
  • Here is the reactivity series of elements to let you understand better .

\setlength{\unitlength}{0.8 cm}\begin{picture}(20,15)\thicklines\put(5,9.5){\large {\boxed{ \sf{Reactivity \:  series}}}}\put(0.8,8){\large\sf K \qquad\qquad\qquad Potassium\qquad\qquad\qquad \: maximum}\put(0.8,7.2){\large\sf Na \qquad\qquad\qquad Sodium\qquad\qquad\qquad\quad \: reactivity}\put(0.8,6.2){\large\sf Ca\qquad\qquad\qquad \: Calcium}\put(0.8,5.2){\large\sf Mg\qquad\qquad\quad \: Magnesium}\put(0.8,4.2){\large\sf Al\qquad\qquad\qquad \: Aluminium\qquad\qquad\qquad \: decreasing}\put(0.8,3.2){\large\sf Zn\qquad\qquad\quad\qquad \: Zinc\qquad\qquad\qquad\qquad \:reactivity}\put(0.8,2.2){\large\sf Fe\qquad\qquad\quad\qquad Ferrous}\put(0.8,1.2){\large\sf Pb\qquad\qquad\qquad \: \:\: Lead}\put(0.8,0.2){\large\sf H\qquad\qquad\qquad \:  \:Hydrogen}\put(0.8, - 0.6){\large\sf Cu\qquad\qquad\qquad \: Copper}\put(0.8, - 1.5){\large\sf Hg\qquad\qquad\qquad \: Mercury}\put(0.8, - 2.5){\large\sf Ag\qquad\qquad\qquad \: \:Silver}\put(0.8, - 3.5){\large\sf Au\qquad\qquad\qquad \: \:  Gold\qquad\qquad\qquad\quad \:  \: minimum reactivity}\put(9.3,8.2){\vector(0, - 2){12}}\end{picture}

4 0
3 years ago
Which of the following IS a part of the Kinetic Molecular Theory (KMT)?
Arisa [49]

The statement that is a part of Kinetic Molecular Theory (KMT) is Molecules in a gas move rapidly. That is option B.

<h3>What is Kinetic Molecular Theory (KMT)?</h3>

Kinetic Molecular Theory (KMT) is defined as the theory that describes the physical behaviour of gases.

The Kinetic Molecular Theory (KMT) include the following:

  • Ideal gas molecules are constantly moving;

  • They have negligible volume;

  • They have negligible intermolecular forces;

  • They undergo perfectly elastic collisions; and

  • They have an average kinetic energy proportional to the ideal gas's absolute temperature.

Therefore, the statement that is a part of Kinetic Molecular Theory (KMT) is Molecules in a gas move rapidly.

Learn more about gas here:

brainly.com/question/25649765

#SPJ1

5 0
1 year ago
Which of the following happens to the particles when the temperature of liquid water drops?
Vikki [24]

Answer:

The Kinetic energy decreases

Explanation:

because the speed of the molecules slows down.

6 0
3 years ago
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