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kotykmax [81]
3 years ago
13

A wave traveling through air meets an object and bounced off its flat surface

Chemistry
2 answers:
maks197457 [2]3 years ago
6 0
It is a I’m think I’m pretty sure
schepotkina [342]3 years ago
6 0
A because I got it right
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N2 + 3H2, -&gt; 2NH3<br> If I have 50.6 L of N2 and excess H2, how many liters of NH3 can I produce?
Anastaziya [24]

Answer:

C. 101.2 L

Explanation:

N2 + H2= NH3

Balancing it,

N2 + 3 H2 = 2.NH3

(1 mol) (3 mol) (2 mol)

which means

1 molecule of nitrogen reacts with 3 molecule of hydrogen to form ammonia.

Likewise,

50.6 l of nitrogen reacts with 50.6 × 3= 151.8 l of hydrogrn to form 50.6 × 2= 101.2 l of ammonia.

3 0
3 years ago
When a runner participates in a marathon, they travel a distance of 26.2 miles. How many kilometers is
jolli1 [7]

Answer:

Around 42.2 Km

Explanation:

7 0
3 years ago
WHICH IS WHICH?
Aleksandr-060686 [28]

Answer:

- First: element.

- Second: Compound.

- Third: element.

- Fourth: Compound.

Explanation:

Hello.

In this case, since elements are composed the same atom and compounds are composed by two different atoms, we can see that:

- First: it is an element as each sphere seems to be the same.

- Second: It is a compound as two different type of spheres are shown, white and black, considering each sphere is a different element.

- Third: it is an element because the spheres are equal, in fact, it is a diatomic element as two atoms are joined per molecule.

- Fourth: It is a compound as well since each molecule has two colored spheres and one white sphere, meaning that it has two different atoms per molecule.

Best regards.!

8 0
4 years ago
You have the equations:
kari74 [83]

Answer:

the answer is 99.0kJ

Explanation:

I took the test in chemistry

7 0
3 years ago
7. The smallest representation of an lonic compound is
BlackZzzverrR [31]

Answer:

c Formula unit

hope this helped

3 0
3 years ago
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