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bazaltina [42]
3 years ago
7

PLEASE HELP. WILL MARK BRAINLIEST SERIOUSLY CONFUSED HELLPPPP PLEASE

Chemistry
1 answer:
Yuri [45]3 years ago
6 0

Alright! Here are the answers:


1. C. Fluorine is more reactive than nitrogen because fluorine needs only one electron to fill its outermost shell.

2. Aluminum (Al)

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For stainless steel different kinds of compositions are used. Based on that different series of stainless steel has been coined.
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What Does The Atomic Radius Change Down A Column Of The Periodic Table
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The atomic radius increases down a column (group) and decreases along a row
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SpongeBob &amp; Friends and the Scientific Method
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Answer:

1. Which people are in the control group? The people who received the mint without the secret ingredient

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2. What is the independent variable? Secret ingredient in the breath mint

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2 years ago
Phosphate buffers are commonly used in biological research. If a small amount of strong acid is added to a buffer solution that
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Answer:

A) [H3PO4] will increase, [KH2PO4] will decrease, and pH will slightly decrease.

Explanation:

A buffer is a solution which resists changes to its pH when a small amount of acid or base is added to it.

Buffers consist of a weak acid (HA) and its conjugate base (A–) or a weak base and its conjugate acid. Weak acids and bases do not completely dissociate in water, and instead exist in solution as an equilibrium of dissociated and undissociated species. When a small quantity of a strong acid is added to a buffer solution, the conjugate base, A-, reacts with the hydrogen ions from the added acid to form the weak acid and a salt thereby removing the extra hydrogen ions from the solution and keeping the pH of the solution fairly constant. On the other hand, if a small quantity of a strong base is added to the buffer solution, the weak acid dissociates further to release hydrogen ions which then react with the hydroxide ions of the added base to form water and the conjugate base.

For example, if a small amount of strong acid is added to a buffer solution that is 0.700 M H3PO4 and 0.700 M KH2PO4, the following reaction is obtained:

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3 years ago
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Nutka1998 [239]

Answer:

yes

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i did the test

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