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Mashcka [7]
4 years ago
13

Hydrogen and carbon atoms bonded with single bonds are called:

Chemistry
1 answer:
photoshop1234 [79]4 years ago
3 0
For the first question, the answer is D because C because alkanes have single bonds ( alkenes have double bonds). For the second question, the prefix is pen.
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A 400 mL sample of hydrogen gas is collected over water at 20°C and 760 torr the vapor pressure of water at 20°C is 17.5 torr. w
o-na [289]

Answer:

V2 = 17371.43ml

Explanation:

We use Boyles laws

since temperature is constant

P1V1=P2V2

760 x 400 = 17.5 x V2

304000 = 17.5 x V2

V2 = 304000/17.5

V2 = 17371.43ml

4 0
4 years ago
A. what is atmospheric pressure?
Vanyuwa [196]

Answer:

<em>What is atmospheric pressure? -------> Atmospheric pressure is a force in an area pushed against a surface by the weight of the atmosphere of Earth, a layer of air.</em>

<em>Why does the atmosphere exert pressure? -------> Because gas particles in the air—like particles of all fluids—are constantly moving and bumping into things, so they exert pressure. </em>

<em>What is the value of atmospheric pressure at sea level, in newtons per square centimeter? -------> Atmospheric pressure at sea level is about 10 N/cm2 or 100 kPa or about 10 m of water or about 760 mm of mercury, but varies with the weather, and of course altitude.</em>

<em>I hope this helps and have a great day!</em>

Explanation:

6 0
3 years ago
Can someone please help me with this I’ll mark brainliest, in the boxes below label what level of organization might look like?
ELEN [110]

Answer:

Vascular tissue transports water, minerals, and sugars to different parts of the plant. Vascular tissue is made of two specialized conducting tissues: xylem and phloem. Xylem tissue transports water and nutrients from the roots to different parts of the plant, and also plays a role in structural support in the stem.

Explanation:

HOPE THIS HELPS!

7 0
3 years ago
In the laboratory, a general chemistry student measured the pH of a 0.329 M aqueous solution of benzoic acid, C6H5COOH to be 2.3
Nesterboy [21]

Answer:

The dissociation constant for the acid ( experimental ) is 1.45 lit/mol

Explanation:

The value of dissociation constant can be calculated as,

  K_{a} = C × ∝²

Where, C = concentration of the solution = 0.329M

          ∝ = Degree of dissociation

again , Degree of dissociation can be obtained form :

                      p_{H} = C × ∝

                         ∝ = \frac{p_{H} }{C}

                        ∝ = \frac{2.327}{0.329} = 7.072

So, now K_{a} = C × ∝²

                     = 0.329 ×( 7.072)²

                     = 1.45 lit/ mol

8 0
4 years ago
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An exploratory robot was sent to the planet mars. The gravity on mars is weaker than the gravity on earth. Compared to the mass
Semmy [17]

Answer: An object has a weight of 10 kg on the surface of Earth. If the same object were transported to the surface of Mars, the object would have a weight of 3.8 kg. The density of the object is greater on Earth than it is on Mars.

Explanation:

6 0
3 years ago
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