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IceJOKER [234]
3 years ago
7

What is represented in each block of the periodic tables?

Chemistry
1 answer:
Len [333]3 years ago
3 0

the answer is c

it wants me to write a 20 letter explanation but ion got time for that

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How can you tell from a substance's formula if it is ionic or molecular?
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Which of the following is required for a reaction to occur?
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I WOULD SAY d. ALL OF ABOVE
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It is found that the new element contains 74 protons and 110 neutrons. What is the atomic number of the element
jarptica [38.1K]

Answer:

74

Explanation:

we know,

atomic number = number of protons

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atomic number = 74

6 0
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Which pair has the stronger ionic bond:<br><br> - MgCl2 vs. NaCl2<br> - NaCl vs. LiCl
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3 years ago
A 10.0 mL sample of HNO3 was exactly neutralized by 13.5 mL of 1.0 M KOH. What is the molarity of the HNO3? Use the titrations f
Kruka [31]

Answer: Thus molarity of HNO_3 is 1.35 M

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n_1M_1V_1=n_2M_2V_2

where,

n_1,M_1\text{ and }V_1 are the n-factor, molarity and volume of acid which is HNO_3

n_2,M_2\text{ and }V_2 are the n-factor, molarity and volume of base which is KOH.

We are given:

n_1=1\\M_1=?M\\V_1=10.0mL\\n_2=1\\M_2=1.0M\\V_2=13.5mL

Putting values in above equation, we get:

1\times M_1\times 10.0=1\times 1.0\times 13.5\\\\M_1=1.35M

Thus molarity of HNO_3 is 1.35 M

7 0
3 years ago
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