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3 years ago

10

How many hydrogen atoms are present in a hydrocarbon chain of five carbon atoms with one double bond and the rest single bonds?

1 answer:

Advocard [28]3 years ago

4 0

There would be 4 hydrogen atoms

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Which correctly identifies the parts of a wave in this diagram?

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A plant dying after being exposed to poison represents a physical change true or false?

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What is the charge of an element with 15 protons, 19 neutrons and 18 electrons?

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3 years ago

How many liters of h2 gas, collected over water at an atmospheric pressure of 752 mm hg and a temperature of 21.0°c, can be made

natta225 [31]

Answer:
The balanced equation tells us that 1 mole of Zn will produce 1 mole of H2.
1.566 g Zn x (1 mole Zn / 65.38 g Zn) = 0.02395 moles Zn
0.02395 moles Zn x (1 mole H2 / 1 mole Zn) = 0.02395 moles H2 produced
Now use the ideal gas law to find the volume V.
P = 733 mmHg x (1 atm / 760 atm) = 0.964 atm
T = 21 C + 273 = 294 K
PV = nRT
V = nRT/ P = (0.02395 moles H2)(0.0821 L atm / K mole)(294 K) / (0.964 atm) = 0.600 L

7 0

4 years ago

The answers to the worksheet

Shtirlitz [24]

An arithmetical operator used for converting a quantity expressed in a set of unit into an equivalent in another set of units are known as conversion factor.

The base SI units for length is meter, $m$ .

The conversion of $m$ to other relevant units are as:

$1 m = 100 cm$

$1 m = 1000 mm$

So, $1 cm = 10 mm$

Now converting the given units as:

1a.

Since, $1 cm = 0.01 m$

So, $995 cm = 9.95 m$

2a.

Since, $1 cm = 10 mm$

So, $0.5 cm = 5 mm$

3a.

$2.79 cm = 27.9 mm$

4a.

Since, $1 mm = 0.1 cm$

So, $718 mm = 71.8 cm$

5a.

$36.6 cm = 366 mm$

6a.

Since, $1 m = 100 cm$

So, $3.6 m = 360 cm$

7a.

$51 mm = 5.1 cm$

8a.

$29 mm = 2.9 cm$

9a.

$32 mm = 3.2 cm$

10a.

Since, $1 cm = 10 mm$

So, $38.8 cm = 388 mm$

1b.

Since, $1 mm = 0.1 cm$

So, $209 mm = 20.9 cm$

2b.

Since, $1 cm = 0.01 m$

So, $862 cm = 8.62 m$

3b.

$36 mm = 3.6 cm$

4b.

$497 mm = 49.7 cm$

5b.

$134 cm = 1.34 m$

6b.

$3.1 cm = 31 mm$

7b.

$1.28 m = 128 cm$

8b.

$19.35 cm = 193.5 mm$

9b.

$0.4 m = 40 cm$

10b.

$1.87 m = 187 cm$

3 0

3 years ago