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3 years ago

List 3 ways that scientists investigate and learn about the natural world?

1 answer:

4 0

3 ways that scientists investigate and learn about the natural world would include:
- Experimenting
- Applying
- Growing

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chlorine has 7 outer energy level electrons and argon has 8. what is the difference in the reactivity of these two elements?

Lunna [17]

Chlorine is more reactive than argon, because argon is not reactive at all. Chlorine only has to gain 1 valence electron

6 0

3 years ago

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There are approximately 15 milliliters (mL) in 1 tablespoon (tbsp). Which expression can be used to find the approximate number

Helga [31]

You know 1 tbsp is 15 milliliters so you would multiply 15 and 3 together. 15 x 3 =45
So there are 45 milliliters in 3 tbsp.

8 0

3 years ago

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Convert the condensed structures to line angle formulas: 1. CH3CH2CH(CH3)CH2CH3 8. CH:COCH 9. CH3CH2OCH3 2. CH3CH2CH(CH2CH3)CH(C

kumpel [21]

Answer:

Attached in the photo.

Explanation:

Hello,

The answers in the attached photo. Just three things:

- In the second point a parenthesis is missing to properly understand the molecule (after the oxygen), nevertheless, I assumed it was an ether.

- In the sixth point, there's a missing hydrogen for it to be an ether as well.

- In the tenth point the second parenthesis is not clear, it seems there's a missing subscript, nevertheless I draw it assuming complete octates.

Best regards.

3 0

3 years ago

Write the molecular formula of glucose

MariettaO [177]

The molecular formula of glucose:
C₆H₁₂O₆

6 0

2 years ago

A lab director asks two students, Lydia and Damien, to each select a bottle of a concentrated weak base. When they reach the cab

algol13

Lydia and Damien should select the bottle of weak base with high molarity(M)

<h3>Further explanation</h3>

According to Arrhenius, Base is a compound which in water releases OH- ions

Electrolytes (acids or bases) with a small degree of ionization are classified as weak electrolytes

If two students, Lydia and Damien, select each bottle of a concentrated weak base, then a guide can be chosen to choose some of the solutions available in the lab :

Base compounds are usually known from their names ending in hydroxide suffixes such as NaOH, sodium hydroxide

The weak base will be partially ionized in water because the ionization degree is close to 0 or less than 1

If there is a Kb value (base ionization constant), then this shows the strength of the base. The greater the value of Kb, the greater the base strength

If there are some weak bases, then Lydia and Damien choose the highest concentration, usually indicated by the value of Molarity (M)

Because no choice solution is included, the weak base example is:

Ammonia (NH₃)

Aluminum hydroxide (Al (OH)₃)

Copper (II) hydroxide Cu (OH)₂

Mercury (II) hydroxide Hg (OH)₂

<h3>Learn more</h3>

the Brønsted theory

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base would not effectively deprotonate acetylene

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Keywords : weak base, select a bottle, chemical solutions

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8 0

3 years ago