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3 years ago

Behaviorism measures : Question 1 options: observable behaviors only, thoughts and feelings, emotions, childhood trauma.

Chemistry

1 answer:

Svetllana [295]3 years ago

8 0

Answer:

Observable behaviors only.

Explanation:

I just did the session question.

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Which method would increase the solubility of gas

jeka94

Answer:

BY increasing pressure and decreasing temperature.

Explanation:

The solubility of a gas increases with decrease in the temperature.

Also the solubility of a gas increases with increasing pressure.

A gas can be compressed by increasing the pressure and decreasing the temperature.

FOR example the gas in domestic LPG cylinders are in compressed form inside the cylinder.

A gas takes the form of a liquid after compressing. Whenever it comes back to normal temperature and pressure it takes back to its gaseous form back.

The gaseous oxygen is water soluble and does not react with it

O2 + 2H2O + 4 e= 4 OH-

4 0

3 years ago

Read 2 more answers

A 45.0L gas cylinder contains 988 He at 23 degrees C what is the pressure inside the cylinder

gregori [183]

Answer:

P = 133.4 atm

Explanation:

Given data:

Mass of helium = 988 g

Volume = 45.0 L

Temperature = 23°C (23+273= 296 K)

Pressure of cylinder = ?

Solution:

Number of moles of helium:

Number of moles = mass/ molar mass

Number of moles = 988 g/ 4 g/mol

Number of moles = 247 mol

Pressure:

PV = nRT

P = nRT/V

P = 247 mol × 0.0821. atm. L/mol. K × 296 K / 45 L

P = 6002.5 / 45 L

P = 133.4 atm

8 0

3 years ago

Suppose a certain species of insect lives in the lush green canopy of the rain forest. Some of the insects are bright green in c

Lapatulllka [165]

Answer:

the orange insects will most likely die first cause there bright and easy to see then the green insects will die.

Explanation:

sorry if its harsh

4 0

3 years ago

What is the percent composition of N H S O in (NH4)2SO4

Lena [83]

Answer:

The percent composition is 21% N, 6% H, 24% S and 49% O.

Explanation:

1st) The molar mass of (NH4)2SO4 is 132g/mol, and it represents the 100% of the mass composition.

In 1 mole of (NH4)2SO4, there are:

- 2 moles of N.

- 8 moles of H.

- 1 mole of S.

- 4 moles of O.

2nd) It is necessary to calculate the mass of each element, multiplying its molar mass by the number of moles:

- 2 moles of N (14g/mol) = 28g

- 8 moles of H (1g/mol) = 8g

- 1 mole of S (32g/mol) = 32g

- 4 moles of O (16g/mol) = 64g

3rd) With a mathematical rule of three we can calculate the percent composition of each element in the molecule of (NH4)2SO4:

$\begin{gathered} \text{ Nitrogen:} \\ 132g-100\% \\ 28g-x=\frac{28g*100\%}{132g} \\ x=21\% \end{gathered}$ $\begin{gathered} \text{ Hydrogen:} \\ 132g-100\operatorname{\%} \\ 8g-x=\frac{8g*100\operatorname{\%}}{132g} \\ x=6\% \end{gathered}$ $\begin{gathered} \text{ Sulfur:} \\ 132g-100\operatorname{\%} \\ 32g-x=\frac{32g*100\operatorname{\%}}{132g} \\ x=24\% \end{gathered}$ $\begin{gathered} \text{ Oxygen:} \\ 100\%-21\%-6\%-24\%=49\% \\ \\ \end{gathered}$

In this case, we can calculate the percent composition of Oxygen by subtracting the other percentages, since the total must be 100%.

So, the percent composition is 21% N, 6% H, 24% S and 49% O.

8 0

1 year ago

How many lone pairs are around the central atom in the Lewis formula for the

barxatty [35]

Answer:

The answer to your question is None, sulfur share of its electrons

Explanation:

Just remember:

Sulfur, S, has 6 electrons in its outermost shell

Hydrogen, H, has 1 electron in its outermost shell

Oxygen, O, has 6 electrons in its outermost shell

See the picture below

The electrons of sulfur are in blue

The electrons of oxygen are in red

The electron in hydrogen is in yellow

Sulfur is the central atom and it shares all its electrons with the oxygen.

8 0

4 years ago