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tatiyna
3 years ago
7

What do we call living things that share characteristics including processes that make life possible?

Chemistry
1 answer:
Dafna11 [192]3 years ago
6 0
Answer:
Organisms

Step-by-step explanation:

Properties of Life. All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing.
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stepladder [879]

Answer:

b

Explanation:

7 0
3 years ago
The rate constant for the decomposition of nitrogen dioxide NO2(g) LaTeX: \longrightarrow⟶ NO (g) + 1/2 O2(g) with a laser beam
aleksley [76]

Answer :

The time taken by the reaction is 19.2 seconds.

The order of reaction is, second order reaction.

Explanation :

The general formula to determine the unit of rate constant is:

(Concentration)^{(1-n)}(Time)^{-1}

Unit of rate constant                           Order of reaction

Concentration/Time                                        0

Time^{-1}                                                              1

(Concentration)^{-1}Time^{-1}                                 2

As the unit of rate constant is M^{-1}min^{-1}. So, the order of reaction is second order.

The expression used for second order kinetics is:

kt=\frac{1}{[A_t]}-\frac{1}{[A_o]}

where,

k = rate constant = 1.95M^{-1}s^{-1}

t = time = ?

[A_t] = final concentration = 0.97 M

[A_o] = initial concentration = 2.48 M

Now put all the given values in the above expression, we get:

1.95\times t=\frac{1}{0.97}-\frac{1}{2.48}

t=0.32min=0.32\times 60s=19.2s

Therefore, the time taken by the reaction is 19.2 seconds.

8 0
3 years ago
Name four ways that bacteria are helpful to people
vesna_86 [32]
<span>gives you dairy products 
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If a person eats a tomato, the person is a ...
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There are two types of physical changes and chemical reactions- endothermic and exothermic. On the diagram below, which picture
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Answer:

it is b because its releases heat in to all directions and not b because it staying inside and not releasing anything :)

Explanation:

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3 years ago
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