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2 years ago

14

How many independent variables can you have during an experiment? A: 1 B: 2 C: as many as you would like D: the same amount as t

he number of controlled variables

2 answers:

lianna [129]2 years ago

3 0

Answer: a

Explanation: its 1

3241004551 [841]2 years ago

3 0

Answer:

A: 1 independent variable

Explanation:

its the variable you're changing to see the impacts it has on different variables

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How are compounds Similar to elements and how are they different

Yuki888 [10]

Answer:

A compound contains atoms of different elements chemically combined together in a fixed ratio. An element is a pure chemical substance made of same type of atom. Compounds contain different elements in a fixed ratio arranged in a defined manner through chemical bonds. They contain only one type of molecule.

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2 years ago

How many electrons does hydrogen need to satisfy the octet rule?

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Just 2 valence electrons.

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What is a solid formed from liquid reactants during chemical reaction

Zinaida [17]

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3 years ago

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Calculate the pH of a buffer prepared by mixing 20.0 mL of 0.10 M acetic acid and 55.0 mL of 0.10 M sodium acetate

MatroZZZ [7]

Answer:

Calculate the pH of a buffer prepared by mixing 30.0 mL of 0.10 M acetic acid and 40.0 mL of 0.10 M sodium acetate.

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2 years ago

Modify the given fatty acid so that it represents the 18‑carbon fatty acid designated 18:2(Δ9,12). Draw any double bonds in the

Mekhanik [1.2K]

Answer:

See explanation

Explanation:

In this case, we have to remember the meaning of the nomenclature "18:2Δ9,12". Where 18 is the <u>number of carbon atom</u>s, 2 is the <u>number of double bonds,</u> and the numbers successive to Δ "delta" the position of the double bonds <u>starting</u> to count from the carboxylic -COOH end of the molecule.

In other words, the main functional group is a <u>carboxylic acid</u>. We have a total of 18 carbons. Additionally, we have 2 double bonds. On carbons 9 and 12.

Lets see figure 1

I hope it helps!

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2 years ago