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Mice21 [21]
2 years ago
7

Which shows an isomer of the molecule below?

Chemistry
2 answers:
AnnyKZ [126]2 years ago
8 0

Answer: C

Explanation:

Don’t trust the other person it’s not A

zhannawk [14.2K]2 years ago
4 0

*view photo for answer*

pay attention! the answer choices aren't always in the same order!

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2. A gas occupies 320. ml at a pressure of 420.5 mmHg. Determine the volume if the pressure is decreased to 300. mmHg.
arsen [322]

Explanation:

v1 p1 = v2 p2

v2 = v1p1/p2

v2= 320×420.5/300

v2=449ml

5 0
2 years ago
How many orbitals exist for s shape
xenn [34]
The s sublevel has only one orbital
3 0
2 years ago
In which of these ways can volcanoes help build up land?
Neporo4naja [7]
C) by adding lava.
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7 0
3 years ago
How many grams of CO are needed to react with an excess of Fe 2 O 3 to produce 209.7 g Fe?
gavmur [86]

Answer:

Mass = 157.5 g

Explanation:

Given data:

Mass of CO needed  = ?

Mass of Fe formed = 209.7 g

Solution:

Chemical equation:

3CO + F₂O₃   →       2Fe + 3CO₂

Number of moles of Fe:

Number of moles = mass/ molar mass

Number of moles = 209.7 g/ 55.85 g/mol

Number of moles = 3.75 mol

Now we will compare the moles of iron and carbon monoxide.

                               Fe            :              CO

                                 2            :              3

                                3.75         ;             3/2×3.75 = 5.625 mol

Mass of CO:

Mass = number of moles × molar mass

Mass = 5.625 mol × 28 g/mol

Mass = 157.5 g

4 0
2 years ago
Which of the following correctly describes the relationship between speed and velocity?
rodikova [14]
Speed and velocity is a scalar and vector quantity of a similar parameter, respectively. They both refer to how fast an object moves. However, the speed only has to do with the magnitude. The velocity takes into account the sign which indicates the direction of the movement. For example, the value is -5 m/s. The speed is 5 m/s, but the velocity is 5 m/s moving downwards because the negative sign denotes downward movement or movement to the left.
4 0
3 years ago
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