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Mumz [18]
2 years ago
8

3. How is the metallic bonding different than ionic or covalent bonding? What are some properties of metals that

Chemistry
1 answer:
Amanda [17]2 years ago
7 0
I don’t know I just want the points but I think it’s : C
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What is the mass of a 1.71-l sample of a liquid that has a density of 0.921g/ml?
Temka [501]
Hey there!:

Volume in mL :

1.71 L * 1000 => 1710 mL

Density = 0.921 g/mL

Therefore:


Mass = Density * Volume

Mass = 0.921 * 1710

Mass = 1574.91 g
8 0
3 years ago
How many sucrose molecules will be in 250 grams
sasho [114]
<h2>Answer:</h2>

We will need to know Avogadro's number and the molar mass of sucrose for this problem to do dimensional analysis.

  • Avogadro's number: 6.022 × 10²³ molecules
  • Molar mass of sucrose: 342.2965 g/mol

250g × \frac{1 mol}{342.297g} × \frac{6.022 * 10^{23} molecules}{1 mol} = 4.398 molecules

There are <em>4.398 sucrose molecules </em>in 250 grams of sucrose.

6 0
3 years ago
6) When a substance such as ice melts, its temperature increases. Describe what happens to the arrangement of the water molecule
Vinvika [58]
When temperature increases, there is more energy in a substance. For example, when water boils, more energy is produced. The arrangement of molecules in a solid are closer together and more packed, while the arrangement of molecules in a liquid are father apart and less packed.
4 0
4 years ago
Which of these does not accurately describe the Wright brothers' first<br> airplane?
Alex_Xolod [135]

Answer:

The answer to this question is B

At least Im pretty sure

4 0
3 years ago
Read 2 more answers
a 45 gram marble is dropped into a graduated cylinder with 30ml of water. The water level increases to 45.0 ml. What is the dens
Lady bird [3.3K]

Answer:

<h2>3 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume}\\

From the question we have

volume = final volume of water - initial volume of water

volume = 45 - 30 = 15 ml

We have

density =  \frac{45}{15}  = 3 \\

We have the final answer as

<h3>3 g/mL</h3>

Hope this helps you

5 0
3 years ago
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