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Tems11 [23]
3 years ago
10

The "building blocks" of matter are

Chemistry
1 answer:
pshichka [43]3 years ago
5 0
The building blocks of matter are B. Atoms and molecules.
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How many atoms are there in an aluminium molecule​
PtichkaEL [24]

Answer:

There are 6.022 × 10²³ atoms in one molecule of aluminium

8 0
2 years ago
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How can I convert percent concentration to molarity?
harina [27]
<span>Calculate the mass of 1 L of solution. Mass of solution=1000mL soln ×1.19 g soln1mL soln =1190 g soln (3 significant figures + 1 guard digit)Calculate the mass of HCl . Mass of HCl=1190g soln ×37.7g HCl100g soln =448.6 g HCl.Calculate the moles of HCl . ...Calculate the molarity of the HCl.</span>
5 0
4 years ago
Would you expect the carbonyl carbon of benzaldehyde to be more or less electrophilic than that of acetaldehyde? Explain using r
Slav-nsk [51]

Answer:

Benzaldehyde is less electrophilic than acetaldehyde

Explanation:

Electrophilicity of carbonyl carbon depends on it's positive charge density.

In benzaldehyde, phenyl group can act as an electron donating group towards carbonyl group due to it's electron donating resonating effect.

In acetaldehyde, methyl group can act as an electron donating group towards carbonyl group due to it's electron donating inductive effect.

We know that resonating effect are more stronger than inductive effect.

Henece, it is expected that positive charge density on carbonyl carbon is much lower in benzaldehyde than acetaldehyde.

So, benzaldehyde is less electrophilic than acetaldehyde.

Resonating effect of phenyl group has been shown below.

4 0
3 years ago
How many milliliters (mL) are in 0.847 liters (L)
alex41 [277]

Answer:

847 mL

Explanation:

Step 1: Find conversion

1 L = 1000 mL

Step 2: Use Dimensional Analysis

0.847 \hspace{2} L(\frac{1000 \hspace{2} mL}{1 \hspace{2} L} )

<em>We see that Liters and Liters cancel out, so we simply multiply.</em>

847 mL

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3 years ago
What are the three zones in almost all human cells?
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C - nucleus, cytoplasm, plasma membrane.
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