Three coyotes per square kilometer is an example of population

Answers

Answer 1

Answer: This should be an example of population density which is how many individuals there are per unit of area.

I hope this helps. Let me know if you were looking for a different answer.

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EADY QUESTION WORTH 50PTS

After cloud droplets form, what must happen to them for precipitation to occur?

Answers

For precipitation to happen, first tiny water droplets must condense on even tinier dust, salt, or smoke particles, which act as a nucleus. Water droplets may grow as a result of additional condensation of water vapor when the particles collide. If enough collisions occur to produce a droplet with a fall velocity which exceeds the cloud updraft speed, then it will fall out of the cloud as precipitation.

Answers please, I will give brainliest

Answers

Bellow you may find the names and structure of the poliatomic ions.

Explanation:

sulfate SO₄²⁻

nitrate NO₃⁻

perphosphate PO₅²⁻

hypoiodite IO⁻

chlorite ClO₂⁻

phosphite PO₃³⁻

percarbonate H₃CO₆²⁻

bromate BrO₃⁻

hyposulfite SO₂²⁻

permanganate MnO₄⁻

carbonite CO₂²⁻

CO₃²⁻ carbonate

MnO₃⁻ manganate

SO₅²⁻ persulfate

BrO₂¹⁻ bromite

CO₄²⁻ percarbonate

PO₅³⁻ perphosphate

ClO¹⁻ hypochlorite

IO₂¹⁻ iodate

PO₄³⁻ phosphate

NO₂¹⁻ nitrite

SO₄²⁻ sulfate

Learn more about:

polyatomic ions

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what is the ratio of the rate of effusion of helium (atomic mass 4.00 amu) to that of oxygen gas (molecular mass 32.0 amu)?

Answers

Answer:

3 : 1

Explanation:

Let the rate of He be R1

Molar Mass of He (M1) = 4g/mol

Let the rate of O2 be R2

Molar Mass of O2 (M2) = 32g/mol

Recall:

R1/R2 = √(M2/M1)

R1/R2 = √(32/4)

R1/R2 = √8

R1/R2 = 3

The ratio of rate of effusion of Helium to oxygen is 3 : 1

Earthquakes are caused by a sudden release of stress when pieces of the Earth's crust shift past each other along a fault. Which of the following could be caused by this sudden shift or its associated earthquake?
A. the triggering of a landslide
B. the collapse of a building
C. the initiation of a tsunami
D. all of these

Answers

D all of the above because a tsunami is caused by disturbance in the water, the building collapsing is because of the tension in the ground, and of course the landslide was triggered because of the friction and tearing.

for all of my study island friends the answer is D. all of these

Using enthalpies of formation, calculate H.

Answers

ΔH° = -851.5 kJ/mol given that

$\begin{array}{cc}\textbf{Species}&{\bf {\Delta H_f\textdegree{}}}\n \text{Fe}_2\text{O}_3\;(s) & -824.2\;\text{kJ}\cdot\text{mol}^(-1)\n\text{Al}_2\text{O}_3\;(s) & -1675.7\;\text{kJ}\cdot\text{mol}^(-1)\end{array}$

(Source: Chemistry Libretexts.)

Explanation

Refer to a thermodynamic data table for the standard enthalpy of formation for each species.

Don't be alerted if the data for Al (s) and Fe (s) are missing. Why?

The standard enthalpy of formation of a substance measures the ΔH required to form each mole of it from the most stable allotrope of its elements under STP.
Both Al (s) and Fe (s) are already the most stable form of their element under STP (note that the state symbol matters.) There's no need to form them again.

As a result, $\Delta H_f\textdegree{} = 0$ for both Al (s) and Fe (s).

$\displaystyle \Delta H_{\text{rxn}}\textdegree{} = \text{Sum of }\Delta H\text{ for all }\textbf{Product} - \text{Sum of }\Delta H\text{ for all }\textbf{Reactant}}\n\phantom{\Delta H_{\text{rxn}}\textdegree{}} = (1* \Delta H_f\textdegree{}(\text{Al}_2\text{O}_3\;(s)) + 1* \Delta H_f\textdegree{}(\text{Al}\;(s)) \n \phantom{\Delta H_{\text{rxn}}\textdegree{}=}-(1* \Delta H_f\textdegree{}(\text{Fe}_2\text{O}_3\;(s)) + 1*\Delta H_f\textdegree{}(\text{Fe}\;(s))$

$\Delta H_{\text{rxn}}\textdegree{}} = (1 * (-1675.7)) - (1*(-824.2)) = -851.5\;\text{kJ}\cdot\text{mol}^(-1)$ .

The number "1" here emphasizes that in case there are more than one mole of any species in one mole of the reaction, it will be necessary to multiply the $\Delta H_f\textdegree{}$ of that species with its coefficient in the equation.

Which sub-layer thins out into space, where there is no air

Answers

Answer:

The exosphere

Explanation:

In Earth atmosphere, the closer to the ground is the troposphere, then the stratosphere, then the mesosphere, in which the highest clouds and radar can reach. Then in the thermosphere, where the auroras and the satellites are form, the air glow starts to disappear until we reach the space in the last layer called exosphere.

The "exosphere" is the most distant and tenuous "layer" of our atmosphere.

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