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Vesna [10]
3 years ago
8

Which are different forms of an element that have different numbers of neutrons? ions isotopes compounds molecules

Chemistry
2 answers:
kramer3 years ago
6 0

Answer:

Isotopes

Explanation:

Isotopes are different forms of an element that have different mass numbers due to different number of neutrons but have the same atomic number(protons and electrons)

Alla [95]3 years ago
6 0

Answer:

Isotopes

Explanation:

Isotopes are forms of an element having different no. of neutrons and same no. of protons and electrons.

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Balance this equation<br> _Al +_HCI --&gt; _H2 +_AICIz
kumpel [21]

2Al+6HCl⇒3H₂+2AlCl₃

<h3>Further explanation </h3>

Equalization of chemical reaction equations can be done using variables. Steps in equalizing the reaction equation:  

• 1. gives a coefficient on substances involved in the equation of reaction such as a, b, or c etc.  

• 2. make an equation based on the similarity of the number of atoms where the number of atoms = coefficient × index between reactant and product  

• 3. Select the coefficient of the substance with the most complex chemical formula equal to 1  

Reaction

Al+HCl⇒H₂+AlCl₃

  • Give coefficient

aAl+bHCl⇒cH₂+AlCl₃

  • Make equation

Al, left=a, right=1⇒a=1

Cl, left=b, right=3⇒b=3

H, left=b, right=2c⇒b=2c⇒3=2c⇒c=3/2

the equation becomes :

Al+3HCl⇒3/2H₂+AlCl₃ x2

2Al+6HCl⇒3H₂+2AlCl₃

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3 years ago
Counting atoms worksheet answer key i need help!!
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The layer in which all living things on earth live and allows you to breathe is called the?
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A troposphere because that is where all the CO2 and where we live
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isotopes of an element will always have the same a. number of protons. b. number of neutrons. c. number of electrons. d. mass.
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