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adelina 88 [10]
3 years ago
7

**Plz help with this asap who ever replies first with the right answer will get brainlists

Chemistry
1 answer:
Vesna [10]3 years ago
5 0

Answer:first D. 88L

Second A 2*10^24

Explanation:

At stp 1 mole = 22.4L

mw Cl2= 70.9

280 g =280/70.9 moles, about 4

4*22.4 = about 88

aw Sr 87.6 —> 6.02214076*10^23 atoms = 1 mole

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Negative radical in the periodic table<br>​
AVprozaik [17]

Answer:

Negative Radicals ---→

1).Flouride =  F⁻

2). Chloride = Cl⁻

3) Bromide = Br⁻

4) Iodide = I⁻

5) Sulphate = SO₄²⁻

6) Oxide = O²⁻

7) Nitride = N³⁻

8) Sulphur = S²⁻

9) Carbide = C⁴⁻

10) Hydroxide = OH⁻

11) Nitrate = NO₃⁻

12) Carbonate = CO²⁻

13) Hydrogen Carbonate = HCO₃⁻

14) Sulphate = SO₄²⁻

15).Sulphite = SO₃³⁻

16) Nitrate = NO₃⁻

17)Nitrite = NO₂⁻

18) Hydrogen Sulphite = HSO₃⁻

19) Hydrogen Sulphate = HSO₄⁻

20) Chromate = CrO₄²⁻

There are lot of Radicals which cannot be easily written. Although some of the Important Radicals which are commonly used are mentioned above.

Hope it helps,

Please mark me as the brainliest

Thank you

7 0
3 years ago
A certain shade of blue has a frequency of 7.26 × 1014 Hz. What is the energy of exactly one photon of this light?
Gekata [30.6K]
7.20 it the energy because


10\7.26 is 7.20
- 70
26
-20
6
6 0
3 years ago
Read 2 more answers
How many moles are in 454 Liters of a gas?
Natalka [10]

Answer:

20.27 mol

Explanation:

454 L x (1 mol/22.4 L) = 20.27 mol

3 0
3 years ago
What chemicals need to make liquid bakelite ?
Jet001 [13]
It begins with heating of phenol and formaldehyde in the presence of a catalyst such as hydrochloric acid, zinc chloride, or the base ammonia. This creates a liquid condensation product, referred to as Bakelite A, which is soluble in alcohol, acetone, or additional phenol.
5 0
3 years ago
Convert the density of water, 1.00 g/mL to lb/ft3. Provide only the numerical value in your answer with the correct number of si
PtichkaEL [24]

Answer:

The density of water 1.00 g/ml=62.43 lbs/ft^3.

Explanation:

Density of water = 1.00 g/mL

1 lb = 453.592 g

1 g=\frac{1}{453.592} lbs

ft^3=28316.8 mL

1 mL=\frac{1}{28316.8} ft^3

Density of the water in lb/ft^3:

\frac{1.00 g}{1 mL}=\frac{1.00}{453.592 } lb\times \frac{28316.8 }{1 ft^3}

=62.43 lbs/ft^3

The density of water 1.00 g/ml=62.43 lbs/ft^3.

3 0
3 years ago
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