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3 years ago

What type of bonds hold the atoms together in polyatomic ions

1 answer:

8 0

<span>This is a covalent bond, a bond in which atoms share electrons. Covalent bonding generally happens between nonmetals. Covalent bonding is the type of bond that holds together the atoms within a polyatomic ion. It takes two electrons to make a covalent bond, one from each bonding atom.

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An aqueous solution at 25.0°C contains [H+] = 0.075 M. What is the pH of the solution?

olasank [31]

Answer:

1.131

Explanation:

pH=-logH^+

H^+=0.074

pH=-log 0.074

pH=1.131

7 0

3 years ago

20. Ice wedging is one cause of increased__? (2 wor

Leno4ka [110]

The answe is 56 setup the word primooo

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3 years ago

1. What is a forensic palyn ologist?

NemiM [27]

Answer:

A forensic palynologist is a spore and pollen expert that helps solve crimes.

The case that Mildenhall worked on was about a murder that involved a prostitute. The police couldn’t find a trace to help solve the case, so they called Mildenhall to help with pollen clues. He was able to find trace evidence in the pollen, which helped police connect the victim to a gang hangout by the crime scene.

A forensic palynologist can help with a criminal investigation by comparing pollen from the suspect and the victim using a comparison microscope to determine if the pollen matches.

The challenges of using a forensic palynologist in a criminal investigation are that judges and juries may have a hard time understanding palynologists.

Explanation:

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3 years ago

Write balanced net ionic equations for the three reactions carried out in Part A given that the sulfur-containing product is the

Alik [6]

Answer:

Please find the complete question in the attached file.

Explanation:

Balanced equation: $8KMnO_4+14NaOH +Na_2S_2O_3 \longrightarrow 8Na_2MnO_4 +2K_2SO_4 +5H_2O +4KOH$

Ionic equation:

$8K^{+} + 8MnO_4^{-}+14Na^{+}+ 14OH^- +2Na^+ S_2O_3^{-}\longrightarrow16Na^+8MnO_4^- +4K^+ + 2SO_4 +5H_2O+4K^+ +4OH^-$

Net Ionic equation:

$10 OH^- +S_2O_3^- \longrightarrow 2SO_4^- +5H_2O$

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3 years ago

Look at the products of the chemical reaction to determine if the reactant added to water caused an acid reaction, a base reacti

Feliz [49]

1. The reaction is a neutralization reaction

2. The reactant added to the water causes an acid reaction

3. The reactant added to the water causes a base reaction

4. The molarity of the solution is 0.025 M

<h3>What is a neutralization reaction? </h3>

This is a reaction involving an acid and a base which result in the formation of salt and water only

HF + NaOH –> H₂O + NaF

The reaction above indicates neutralization since the reaction produces water (H₂O) and salt (NaF) only

An acid is a substance which dissolves in water to produce hydronium ion H₃O⁺

3HI + 2H₂O —> 2H₃O⁺ + 3I¯ + H⁺

The reaction above is an acid reaction since it produces H₃O⁺

A base is a substance which dissolves in water to produce hydroxide ion OH¯

2CH₃COO¯ + H₂O —> CH₃COO¯ + OH¯ + CH₃COOH

The reaction above is a base reaction since OH¯ is produced.

<h3>How to determine the molarity </h3>

Mole = 0.05 mole
Volume = 2 L

Molarity =?

Molarity = mole / Volume

Molarity = 0.05 / 2

Molarity = 0.025 M

Learn more about molarity:

brainly.com/question/9468209

4 0

2 years ago