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malfutka [58]
3 years ago
7

Which group of elements will form molecular compounds? (Choose all that apply)

Chemistry
1 answer:
NISA [10]3 years ago
8 0

Answer:

hope you understand and your answer is correct

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Is -280 f degrees hot or cold
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Answer:

COLD

Explanation:

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Which of the following shows the valency of 1?
Oliga [24]

\huge \bf༆ Answer ༄

The element having valency of 1 is ~

  • Sodium (Na)
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2 years ago
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Potassium iodide reacts with lead(II) nitrate in this precipitation reaction: 2 KI(aq) + Pb(NO3)2(aq) → 2 KNO3(aq) + PbI2(s) Wha
andrew11 [14]

Answer:

a. 174 mL

Explanation:

Let's consider the following reaction.

2 KI(aq) + Pb(NO₃)₂(aq) → 2 KNO₃(aq) + PbI₂(s)

We have 155.0 mL of a 0.112 M lead(II) nitrate solution. The moles of Pb(NO₃)₂ are:

0.1550 L × 0.112 mol/L = 0.0174 mol

The molar ratio of KI to Pb(NO₃)₂ is 2:1. The moles of KI are:

2 × 0.0174 mol = 0.0348 mol

The volume of a 0.200 M KI solution that contains 0.0348 moles is:

0.0348 mol × (1 L / 0.200 mol) = 0.174 L = 174 mL

5 0
3 years ago
What are some physical properties of a candle
Troyanec [42]
The wick and the wax

Sorry if that was useless, I'm not sure how generalized you were being

6 0
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Use molecular structure and intermolecular bonding to describe why bromine has a lower boiling point than water
kotegsom [21]

Answer:

Bromine mollecules are held together by van der waals forces while a water molecule constitutes both van der waals forces and hydrogen bomnding

Explanation:

This makes the water molecule recquire more heat energy to break the bond thus a higher boiling point while bromine structure requires just litttle heat energy  

3 0
3 years ago
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