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2 years ago

Rainfall is an abiotic factor. If rainfall in an ecosystem decreases, what happens to the amount of vegetation?

Chemistry

2 answers:

Alexus [3.1K]2 years ago

6 0

B

explenation: explanation’s I just got a new one

natali 33 [55]2 years ago

4 0

Answer:

B. The amount of vegetation decreases.

Explanation:

plants can't grow without rain

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What is the mass in grams of 14.2 liters of sulfur dioxide gas at STP?

ICE Princess25 [194]

Answer:

Mass = 40.4 g

Explanation:

Given data:

Mass in gram = ?

Volume of SO₂ = 14.2 L

Temperature = standard = 273 K

Pressure = standard = 1 atm

Solution:

The given problem will be solve by using general gas equation,

PV = nRT

P= Pressure

V = volume

n = number of moles

R = general gas constant = 0.0821 atm.L/ mol.K

T = temperature in kelvin

1 atm × 14.2 L = n × 0.0821 atm.L/ mol.K × 273 K

14.2 atm.L = n × 22.41 atm.L/ mol

n = 14.2 atm.L/22.41 atm.L/ mol

n = 0.63 mol

Mass of sulfur dioxide:

Mass = number of moles × molar mass

Mass = 0.63 mol × 64.1 g/mol

Mass = 40.4 g

7 0

3 years ago

What are the intermolecular forces of Sulfate ion

Salsk061 [2.6K]

Answer:

oh it's easy

Explanation:

Take the hydrate

∙

. Are there ionic forces between the

and the

−

and ion-dipole forces between the cation/anions and the water?

3 0

3 years ago

if the percent by volume is 2% and the volume of solution is 250 mL what is the volume of solute and solution

Liula [17]

Answer:

Solute = 5 mL; solution = 250 mL

Explanation:

The formula for percent by volume is

$\text{Percent by volume} = \dfrac{\text{Volume of solute}}{\text{Volume of solution}}\times 100 \, \%$

If you have 250 mL of a solution that is 2 % v/v,

$\begin{array}{rcl}2 \, \% & = & \dfrac{\text{Volume of solute}}{\text{250 mL}}\times 100 \, \%\\\\2 \times \text{ 250 mL} & = & \text{Volume of solute} \times 100\\\text{Volume of solute} & = & \dfrac{2 \times 250\text{ mL}}{100}\\\\ & = & \textbf{5 mL}\\\end{array}$