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Vlad1618 [11]
3 years ago
5

Match the terms below to the correct definitions

Chemistry
1 answer:
Yakvenalex [24]3 years ago
4 0

Answer:

Explanation:

1=i

4=d

5=m

6=c

8=o

9=j

10=a

13=b

14=h

15=l

Theses are the ones i knew

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Of the following elements, which is the LEAST reactive? A. C B. H C. Li D. He
Mashcka [7]

The least reactive elements are the noble gases since they have a full valence shell and thus require a lot of energy in order to form bonds.
For metals, reactivity increases as you move down a group and as you move leftward within a period.
The trend within a period is due to the increase in ionization energy caused by the decrease in electrons needed to be lost in order for an element achieve a full valence electron shell. The trend within a group is due to the valence shell being further away from the nucleus, resulting in less attractive forces and thus less energy needed for reaction.

For nonmetals, the trends are reversed. Reactivity as you move up a group and as you move rightward within a period.
As you move up a group, the element increases in electromagnetism and thus increasing its reactivity. As you move across a period, there is less electrons needed to be received in order for the element to achieve a full valence shell
hope this helps hun
4 0
3 years ago
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Calculate the number of moles of NaOH that are needed to react with 500.0 g of
Alenkasestr [34]

Answer:

2.55 moles of NaOH are needed react with 500.0 gram of H₂SO₄.

Explanation:

Given data:

Mass of H₂SO₄ = 500.0 g

Number of moles of NaOH needed = ?

Solution:

H₂SO₄ + 2NaOH  → Na₂SO₄ + 2H₂O

Number of moles of H₂SO₄:

Number of moles = mass/molar mass

Number of moles = 500.0 g/ 98.07 g/mol

Number of moles = 5.09 mol

Now we will compare the moles of H₂SO₄ and NaOH.

                     H₂SO₄         :           NaOH

                           1             :               2

                         5.09         :            1/2×5.09 = 2.55 mol

Thus, 2.55 moles of NaOH are needed react with 500.0 gram of H₂SO₄.

7 0
3 years ago
Connectivity is an example of which type of property?​
aleksklad [387]

Answer:

physical property

Explanation:

......

3 0
3 years ago
A sample of the inhalation anesthetic gas Halothane, in a 500-mL cylinder has a pressure of 2.3 atm at 0°C. What will be the pre
STALIN [3.7K]

Answer: 2.56atm

Explanation:

P1/T1=P2/T2

P1T2=P2T1

P2=P1T2/T1

P1=2.3atm

P2=?

T1=0+273=273k

T2=32+273=305k

P2=2.3*305/273

P2=701.5/273

P2=2.56atm

8 0
3 years ago
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Which equation demonstrates that nuclear fusion forms elements that are heavier than helium?
WARRIOR [948]

Answer:

The Answer is

" B....Superscript 16 subscript 8 upper O plus superscript 4 subscript 2 upper H e right arrow superscript 20 subscript 10 upper N e."

if your on edgnuity

Explanation:

I got it right by choosing B

4 0
3 years ago
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