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galben [10]
3 years ago
10

Round 264.23 to 3 sig figs

Chemistry
1 answer:
Darya [45]3 years ago
3 0

Answer:

264

Explanation:

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qwelly [4]

Answer:

Erythrocytes

Erythrocytes do not contain a nucleus. This would make answer choice "A" correct. Erythrocytes are red blood cells and these cells differ from the other cells of the body because of the absence of the nucleus. All the other cells noted have nuclei.

Explanation:

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3 years ago
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To produce large tomatoes that are resistant to cracking and splitting some seeds companies use the pollen from one variety of t
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cross pollination

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is when two types of plants are mixed to create a better or hardier plant

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3 years ago
Use the word bank to complete the charts about the metrics system measurement
Aloiza [94]

Answer:

Length

- centimetre

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Mass

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I don't know why mass is there but hope this helps! :)

5 0
3 years ago
Would the ph at the equivalence point be acidic, basic, or neutral for each given titration?.
Lesechka [4]

Answer:

At the equivalence point, equal amounts of H+ and OH– ions will combine to form H2O, resulting in a pH of 7.0 (neutral). The pH at the equivalence point for this titration will always be 7.0, note that this is true only for titrations of strong acid with strong base.

Explanation:

3 0
2 years ago
The mole concept is important in chemistry because 1. it allows us to distinguish between elements and compounds. 2. it provides
Rufina [12.5K]
Answer:
             <span>The mole concept is important in chemistry because, "</span>Atoms and molecules are very small and the mole concept allows us to count atoms and molecules by weighing macroscopic amounts of material".

Explanation:
                   To understand this question lets take an example of Hydrogen atom. Let suppose you need to react Hydrogen with Oxygen. You need exactly Two Hydrogen atoms and one Oxygen atom to form one water molecule.
                  The mass of 1 hydrogen atom is 1.76 × 10⁻²⁴ grams. How will you count the Hydrogen atoms??? How can you measure exactly for 1 Million Hydrogen Atoms???
                   Answer to these questions and Calculations lies in Mole. It is found that 1 Mole of Hydrogen weights exactly 1.008 gram and contains 6.022 × 10²³ atoms. Now, having this reference in hand you can calculate for any number of Hydrogen atoms.

Result:
           So the Mole helps us to zoom a microscopic level to a macroscopic level. :)
6 0
2 years ago
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