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hram777 [196]
3 years ago
9

H3C - CH2 - CEC - CH3 Compound name

Chemistry
1 answer:
d1i1m1o1n [39]3 years ago
5 0

Answer:

2-pentene

hope this helps :)

Explanation:

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2.)Which action forms a different chemical substance?
kvv77 [185]

Answer:

B. burning a piece of wood

Explanation:

The Chemical Would Be The Air Coming From The Wood While Burning It

Tell Me If Im Correct  

6 0
3 years ago
HELP! <br><br>How many moles of a solute would 3 liters of a 2-molar solution contain? ​
katrin [286]

Answer: If it was 3 mol of solute in 2 L of solution it would be 1.5 mol/L.

However when the solute dissolves in the water creating the solution, the volume increases. So 3 mol of solute in 2 L of water creates more than 2 L of solution.

The correct method for making a 3 mol/L solution would be to place some water into a two liter volume container. Dissolve all 3 mol of the solute into the water. Then add water to the 2 L mark. Now there is 3 mol of solute and 2 L of solution.

Explanation: I hope this helps XDDDD

8 0
2 years ago
A sample of citric acid, C6H8O7, has a mass of 22.9 g. What amount, in moles, does this mass represent?
aliina [53]

Answer

C6H807 = 192.124 g/mol

n = m/M

    \frac{22.9g}{192.124 g/mol}

n = 0.119 mol

Explanation:

to calculate amount in moles you need to find the molar mass of citric acid then divide the mass of the acid with the molar mass

3 0
3 years ago
What is the kinetic energy, in joules, of a molecule of carbon tetrachloride moving at a speed of 255 m s–1 (use the appropriate
hram777 [196]

Answer:

The kinetic energy of a molecule of carbon tetrachloride is 8.29 zJ.

       

Explanation:

The kinetic energy of a molecule of carbon tetrachloride is given by:

K = \frac{1}{2}mv^{2}

Where:

m: is the mass

v: is the speed = 255 m/s                            

To find the mass we need to find the molar mass for CCl₄, and use the Avogadro's number, knowing that in 1 mol of carbon tetrachloride we have 6.022x10²³ molecules:

A (C) = 12.011 g/mol

A (Cl) = 35.45 g/mol

The molar mass (M) of CCl₄ is:

M = A (C) + 4*A (Cl) = 12.011 g/mol + 4*35.45 g/mol = 153.81 g/mol

Now, the mass of 1 molecule of CCl₄ is:

m = 153.81 \frac{g}{mol}*\frac{1 mol}{6.022 \cdot 10^{23} molecules} = 2.55 \cdot 10^{-22} g = 2.55 \cdot 10^{-25} kg

Finally, the kinetic energy of a molecule of carbon tetrachloride is:

K = \frac{1}{2}mv^{2} = \frac{1}{2}2.55 \cdot 10^{-25} kg*(255 m/s)^{2} = 8.29 zJ

Therefore, the kinetic energy of a molecule of carbon tetrachloride is 8.29 zeptoJoule.

I hope it helps you!

6 0
3 years ago
Choose the true statement.
Svetradugi [14.3K]

Answer:

1. The solubility of a gas in water increases with an increase in pressure

Explanation:

6 0
2 years ago
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