All categories

3 years ago

An ecosystem contains all the biotic and abiotic factors in an area. answers true or false

Chemistry

2 answers:

andre [41]3 years ago

8 0

I would think it is true so the answer is True

natali 33 [55]3 years ago

7 0

This question is true. An ecosystem contains both Biotic and Abiotic. Biotic is living and Abiotic is nonliving.

You might be interested in

4. Which statement is true?

Marta_Voda [28]

Answer:

Explanation:

Hope this helps and have a great day!!!

6 0

3 years ago

a scientist is measuring the measuring the temperature change in a chemical compound. the temperature dropped 11 per hr from the

stepladder [879]

Answer:

$\large \boxed{134 \, ^{\circ}\text{C}}$

Explanation:

1. Calculate the temperature drop

$\text{Temperature drop} = \text{4 h} \times \dfrac{11 \,^{\circ}\text{C}}{\text{1 h}} = 44 \,^{\circ}\text{C}$

2. Calculate the original temperature

$\begin{array}{rcl}\text{Final Temperature} & = & \text{original temperature - temperature drop}\\90 ^{\circ}\text{C} & = & \text{original temperature - 44} \, ^{\circ}\text{C}\\\text{Original temperature}& = & \mathbf{134 \, ^{\circ}}\textbf{C}\\\end{array}\\\text{The original temperature was $\large \boxed{\mathbf{134 \, ^{\circ}}\textbf{C}}$}$

5 0

4 years ago

The energy needed to destabilize existing chemical bonds and start a chemical reaction is called ____.

postnew [5]

<span>If all chemical reactions that release free energy tend to occur spontaneously,why haven't all such reactions already occurred? One reason is that most reactions require an input of energy to get started.Before it is possible to form new chemical bonds,even bonds that contain less energy,it is first necessary to break the existing bonds,and that takes energy.The extra energy required to destabilize existing chemical bonds and initiate a chemical reaction is called activation energy.</span>

3 0

3 years ago

Which of the following WOULD NOT affect the level at which a cargo ship floats

kow [346]

Answer: D. The depth of the water does not affect the level at which a cargo ship floats.

3 0

3 years ago

Glucose, c 6 h 12 o 6 , is a good source of food energy. when it reacts with oxygen, carbon dioxide and water are formed. how ma

melomori [17]

94.0 L if the reaction takes place under STP.

<h3>Explanation</h3>

The molar mass of glucose C₆H₁₂O₆ is

12.01 × 6 + 1.008 × 12 + 16.00 × 16.00 = 180.16 g / mol.

126 grams of glucose will contain 126 / 180.16 = 0.69939 mol of C₆H₁₂O₆. (To avoid rounding errors, keep a couple more digits than necessary.)

6 moles of CO₂ will be produced when 1 mole of C₆H₁₂O₆ is consumed. 0.69939 moles of C₆H₁₂O₆ will give rise to 4.196 mol of CO₂.

Assuming that the reaction takes place under STP, where T = 0 °C = 273 K and P = 1 atm. Each mole of any ideal gas will occupy a volume of 22.4 liters. The 4.196 moles of CO₂ will occupy 4.196 × 22.4 = 94.0 L. (The least significant number given is 126 g, the mass of glucose. This number has three significant figures. Thus, round the result to three significant figures.)

The volume of CO₂ can be found using the ideal gas law if the condition isn't STP. For example, T = 25 °C = 297 K and P = 1.00 × 10⁵ will lead to a different volume. By the ideal gas law,

V = (n · R · T) / (P)

where

V is the volume of the gas,
n is the number of moles of gas particles,
R is the ideal gas constant<em>,</em>
P is the pressure on the gas,
T is the absolute temperature of the gas (in degrees Kelvin.)

R = 8.314 × 10³ L · Pa / (K · mol)

Taking T = 297 K and P = 1.00 × 10⁵ Pa,

V = (4.196 × 8.314 × 10³ × 297 ) / (1.00 × 10⁵ ) = 104 L.

3 0

3 years ago