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3 years ago

THIS QUESTION RIGHT HERE ;)

Chemistry

1 answer:

sergij07 [2.7K]3 years ago

4 0

The answer is Hydrogen sulfide. We know this because those are the two elements missing from the left side of the equation. And both sides have to have the same elements!

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Which of the following sulfides are insoluble? Select all that apply. Select all that apply. A. sodium sulfide lead(II) B. sulfi

Yuri [45]

Answer:

Explanation:

4 0

4 years ago

Is wind energy consistent or inconsistent

LuckyWell [14K]

Inconsistent as it can vary from time to time.

5 0

3 years ago

C3H8 and CH4 are 2 compounds made from the same elements. This is an example of which law? A) Law of Conservation of Mass b) Law

Sphinxa [80]

C3H8 and CH4 are two compounds made from the same two elements, C and H. The ratios of C and H for both are round numbers.

Law of multiple proportions states that when two elements combine with each other to form more than one compound, the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.

So the ans is C) Law of Multiple Proportions

6 0

3 years ago

Organize the following species in terms

ser-zykov [4K]

Explanation:

F Cl Br

ionization energy decreases we move down the group
so Br<Cl<F

2. Na K Li

ionization energy decreases we move down the group
so K<Na<Li

3. C N O F

ionization energy increases as we move across the peroid
so C<N<O<F

plz mark as brainliest if it helps

6 0

3 years ago

a particular application calls for N2 g with a density of 1.80 g/L at 32 degrees C what must be the pressure of the n2 g in mill

baherus [9]

Answer:

1223.38 mmHg

Explanation:

Using ideal gas equation as:

$PV=nRT$

where,

P is the pressure

V is the volume

n is the number of moles

T is the temperature

R is Gas constant having value = $62.3637\text{ L.mmHg }mol^{-1}K^{-1}$

Also,

Moles = mass (m) / Molar mass (M)

Density (d) = Mass (m) / Volume (V)

So, the ideal gas equation can be written as:

$PM=dRT$

Given that:-

d = 1.80 g/L

Temperature = 32 °C

The conversion of T( °C) to T(K) is shown below:

T(K) = T( °C) + 273.15

So,

T = (32 + 273.15) K = 305.15 K

Molar mass of nitrogen gas = 28 g/mol

Applying the equation as:

P × 28 g/mol = 1.80 g/L × 62.3637 L.mmHg/K.mol × 305.15 K

⇒P = 1223.38 mmHg

<u>1223.38 mmHg must be the pressure of the nitrogen gas.</u>

5 0

3 years ago