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vivado [14]
3 years ago
15

Why is it o2 and not o?and what does the 2 stand for?​

Chemistry
2 answers:
lutik1710 [3]3 years ago
7 0

Answer:

Atoms

Explanation:

O2 is Written with a two as it is two oxygen atoms. Just o means one oxygen atom

Tanzania [10]3 years ago
4 0

Answer: Oxygen usually is in the form of diatomic molecules, this means each molecule contains two oxygen atoms.

Explanation:  molecules form because of a lone oxygen atom is two electrons short of a full outer shell of eight. In order to fill the outer shell, one oxygen electron will share electrons with another one. Each oxygen atom 'gains' two electrons from the other. A total four electrons are shared between them, two from each atom, thus a double covalent bond is created.

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When acid (X) reacts with base (Y) to produce Mg3(PO4)2- what are X and Y
kow [346]

Mg3(PO4)2 - Mg²⁺ forms base

PO4³⁻ forms acid

Ma(OH)2 is a base(Y).

H3PO4 is an acid(X).

3Mg(OH)2 + 2H3PO4 ---> Mg3(PO4)2 + 3H2O

7 0
4 years ago
The broadest taxonomic group for classifying living organisms is the blank
zloy xaker [14]

Answer:

Domain

Explanation:

5 0
3 years ago
A 9.75 L 9.75 L container holds a mixture of two gases at 41 ° C. 41 °C. The partial pressures of gas A and gas B, respectively,
Triss [41]

Answer:

The total  pressure P = 1.642 atm

Explanation:

From the dalton's law

Total pressure of the mixture is

P = P_{A} + P_{B} + P_{C} ----- (1)

P_A = 0.419 atm

P_B = 0.589 atm

P_C = \frac{nRT}{V}

n = 0.24 mole

R = 0.0821 \frac{L.Atm}{K.mol}

T = 41 °c = 314 K

P_C = \frac{(0.24)(0.0821)(314)}{9.75}

P_C = 0.634 atm

From equation (1)

P = 0.419 + 0.589 + 0.634

P = 1.642 atm

Thus the total  pressure P = 1.642 atm

3 0
3 years ago
Why does a group of warmer atoms take up more volume than a group of cooler atoms?
CaHeK987 [17]
Warmer atoms expand. There is also more movement. This is also explained when putting it into terms with solid vs. gas. In a solid, the atoms vibrate, but they can't move very far because there is not a lot of space between them. In a gas, on the other hand, the atoms are spread apart, and they move very fast. Putting it into context with water, the steam (gas) version is hot, and the ice cube (solid) version is cold. Which one moves more freely? The gas.
4 0
4 years ago
Metric conversions.<br> Please help ASAP.
lesya692 [45]

Answer:

14. 13.2cg = 1.32dg

15. 3.8m = 0.0038km

16. 24.8L = 24800mL

17. 0.87kL = 870L

18. 26.01cm = 0.0002601km

19. 0.001hm = 10cm

Explanation:

14. 13.2/10 = 1.32

15. 38/1000 = 0.0038

16. 24.8(1000) = 24,800

17. 0.87(1000) = 870

18. 26.01/100000 = 0.0002601

19. 0.001hm(10000) = 10

An easy way to do these by yourself is to familiarize yourself with what each prefix means. Once you do this, you can multiply the value of the prefix when converting from a smaller unit of measurement to a larger one and divide the value of the prefix when converting from a large unit of measurement to a smaller one.

7 0
3 years ago
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