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andreyandreev [35.5K]
3 years ago
10

Which statement is not true about the periodic table?

Chemistry
1 answer:
Crazy boy [7]3 years ago
4 0
Answer is A
All elements on the periodic table have a different number of protons that can be represented by its atomic number
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When does an object move<br><br>​
natulia [17]

Answer:

When a force pushes or pulls the object, the object will move in the direction of the force. The bigger the force, and the lighter the object, the greater the acceleration. It can also make something slow down, speed up or change direction.

Wish I Could HELP You!

5 0
3 years ago
The fluoride rinse in dental offices usually contains sodium fluoride. Sodium fluoride can be prepared from the reaction between
Bad White [126]

The chemical reaction in which number of atoms of each element present in the reactant side is equal to the number of atoms of that element in product side, such reactions are said to be a balanced chemical reaction.

The chemical symbol for sodium is Na.

The chemical symbol for fluorine gas is F_2.

The chemical symbol for sodium fluoride is NaF

The sodium fluoride is prepared from the reaction between sodium metal and fluorine gas can be written as:

Na (s)+F_2(g) \rightarrow NaF(s)

The above reaction is not balanced as the number of fluorine atoms are not same on reactant and product side. So, in order to balance the reaction we will multiply Na with 2 on reactant side and NaF with 2 on product side. Thus, the balanced reaction will be:

2Na (s)+F_2 (g)\rightarrow 2NaF(s)

Thus, the balanced chemical equation is 2Na (s)+F_2 (g)\rightarrow 2NaF(s).

3 0
3 years ago
Read 2 more answers
What are the half-reactions for a galvanic cell with aluminum and gold electrodes?
pashok25 [27]

Answer:B is right

Explanation: Al loses electrons and is oxidised, Au gains electron. And is reduced

4 0
3 years ago
Which pairs will form an ionic bond (Can pick multiple answers)​
boyakko [2]

Answer: NA and F would form an ionic bond

Hope this helps pls if there is any other feel free to comment

8 0
3 years ago
What is a positive ion?
BaLLatris [955]

Answer:

If the atom has more electrons than protons, it is a negative ion or ANION. If it has more protons than electrons, it is a positive ion.

Explanation:

Positive ions are typically metals or act like metals. Many common materials contain these ions. Mercury is found in thermometers, for instance, and aluminum is a metal that is found in a surprising amount of things.

8 0
3 years ago
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