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Temka [501]
3 years ago
12

In this reaction _____. A scheme of a chemical reaction. The reactants are two molecules, one of which consists of A and B, and

the other consists of C and D. The products are two molecules, one of which consists of A and C, and the other consists of B and D. The energy of molecules AB and CD is higher than the energy of molecules AC and BD.
Biology
1 answer:
Fantom [35]3 years ago
8 0

Answer:

The chemical reaction is: AB + CD ---> AC + BD  (ΔH=  - )

Explanation:

After the reaction between two reactants, two products are generated.

As the products have less energy than the reactants, this energy is released and ΔH is negative

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Which microscope is often used to view metal surfaces? scanning electron microscope scanning tunneling microscope transmission e
bija089 [108]

The correct answer is option (a) Scanning tunneling microscope.

Microscopes are used to see the objects at molecular level. Scanning tunneling microscope( STM) is a type of optical microscope that uses optics(light) and lenses to see the enlarged size of the object. This microscope use a small metal tip under a high voltage. when this tip of microscope is brought close to the metal, the metallic tip of microscope draws electrons from the atom (metal) to be observed. This generates an electric current. There is a computer system attached to the microscope that detects the change in the electric current. Computer plots the change in position of atoms in metal.







4 0
4 years ago
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Devegetation has what effect on ecosystem dynamics?
SIZIF [17.4K]

Hey the answer to your question is that <em>Devegetation increases nutrient export .</em>

<em> </em>

8 0
4 years ago
Which of the following describes convection? A. a cold swimming pool making a child cold B. a campfire cooking a fish hanging ov
kipiarov [429]

Your answer would be  <em><u>D. refrigerator coils keeping the refrigerator cold</u></em>

3 0
3 years ago
You are enjoying your vacation on the coast and decided to go snorkeling. Your tidal volume is 460 mL and breathing rate is 14 b
m_a_m_a [10]

Answer:

Option C

Explanation:

Option

A. 6440 mL/min

B. 4340 mL

C. 3500 mL/min

D. 2940 mL/min

Solution

It is required to find the minute ventilation which is equal to the product of rate of breathing and the total amount of gas being inhaled or exhaled per breathe.  Let this minute ventilation be denoted by "V_f"

Thus,

V_f = TD * B_r

where TD is the tidal volume and Br is the rate of breathing

Substituting the given values we get

V_f = 460 *14 \\V_f = 6440

We will now reduce the air held in the conducting zone of respiratory system

Air held per breathe = 210

Total Air held

= 210 * 14 \\= 2940

Amount of fresh air one can breathe in and out every minute

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Hence, Option C is correct

7 0
3 years ago
Examples of organisms are unicellular
kykrilka [37]

Answer:

amoeba

Explanation:

unicellular are the organism which have single cell.

7 0
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