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svp [43]
3 years ago
6

A student will measure and record the growth of two flowering plants every day for 28 days. Plant A will be watered and fertiliz

ed, Plant B will only be watered. The student predicts fertilizer added to the soil leads to taller flowering plants. Scientific conclusions are based on scientific evidence, what evidence would support the student’s prediction?
Chemistry
1 answer:
Mekhanik [1.2K]3 years ago
8 0

Answer:

If Plant A grows taller than Plant B

Explanation:

because plant A is being fertilized whereas plant B isn't

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A 1.0 mol sample of which of the following compounds has the greatest mass?
Sholpan [36]

Answer:

D) N2O5

Explanation:

The molar mass of a substance is defined as the mass of this substance in 1 mol. To solve this question we must find the molar mass of each option:

<em>Molar mass NO:</em>

1N = 14g/mol*1

1O = 16g/mol*1

14+16 = 30g/mol

<em>Molar mass NO2:</em>

1N = 14g/mol*1

2O = 16g/mol*2

14+32 = 46g/mol

<em>Molar mass N2O:</em>

2N = 14g/mol*2

1O = 16g/mol*1

28+16 = 44g/mol

<em>Molar mass N2O5:</em>

2N = 14g/mol*2

5O = 16g/mol*5

28+80 = 108g/mol

That means the compound with the greatest mass is:

<h3>D) N2O5</h3>
5 0
3 years ago
Which tool would give the most precise measurement of 15 milliliters of water
vagabundo [1.1K]

A graduated cylinder

_________________

o0o0o0o0o0o0o0o0o0

6 0
2 years ago
Would a pure substance ever settle out and form two distinct layers? Explain your reasoning.
garik1379 [7]

Answer:

No, the only way they can be separated is through chemical methods. ... A compound is made up of two or more elements that are chemically combined and elements are combined to form a compound.

Explanation:

6 0
3 years ago
Please help me thank you so much &lt;3
aleksandr82 [10.1K]

A i dolnt reaally know but yeh

6 0
2 years ago
Read 2 more answers
Write the electron configuration for the element titanium, Ti.
SOVA2 [1]

Answer:

[Ar] 3d^{2} 4s^{2}

Explanation:

You can look at the periodic table and figure out the electron config.

8 0
3 years ago
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