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sattari [20]
4 years ago
7

Please help me ASAP

Chemistry
1 answer:
Ksenya-84 [330]4 years ago
8 0
1. False

2. ?

3. same as 2

4. True

5. False

6. False

7. ?

8. ?

9. True

10. False
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What is the difference between nitrite and nitrate​
Dahasolnce [82]

Answer:

<u>Nitrite:</u>

  • Formula : NO₂⁻
  • 1 nitrogen molecule and two oxygen molecules with an excess electron.
  • Angular shape

<u>Nitrate:</u>

  • Formula: NO₃⁻
  • 1 nitrogen molecule and three oxygen molecules with an excess electron.
  • Trigonal planar structure.

\rule[225]{225}{2}

Hope this helped!

<h3>~AH1807</h3>

4 0
2 years ago
If the gas in the piston above has a volume of 20.0 L at a temperature of 25 C what is the volume of that gas when it is heated
dexar [7]

Answer:

15.98 L

Explanation:

First, you need to find T1, T2, V1 and V2.

T1 = 25 C = 298.15 K (25C + 273.15K)

T2 = 100 C = 373.15 K (100C + 273.15K)

V1 = 20. L

V2 = ? (we are trying to find)

Next, rearrange to fit the formula

V2 = V1 x T1 / T2

Next, fill in with our numbers

V2 = 20. L x 298.15 K / 373.15 K

Do the math and you should get...

15.98 L

- If you need more help or futher explanation please let me know. I would be glad to help!

8 0
3 years ago
Read 2 more answers
What is an inference?
sp2606 [1]

Answer:

A conclusion derived from evidence and logical reasoning

Explanation:

5 0
3 years ago
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CH3COOH(aq) + NaOH(aq) → H2O(l) + NaCH3COO(aq)
ser-zykov [4K]
I believe this is a double replacement. As you can see none of the chemical symbols are missing, there just "replaced". 
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3 years ago
A strong beam of light is directed toward a tank filled with water. What caused the beam of light to change direction?
Neporo4naja [7]
The bending occurs because light travels slower in a denser medium, which allows refraction. Since the light is passing from air (less dense) into water (more dense), it is bent more than normal.
3 0
3 years ago
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