1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
jarptica [38.1K]
3 years ago
15

Which represents the greatest time frame in which a short-term environmental change can occur?

Chemistry
1 answer:
Orlov [11]3 years ago
7 0

Answer:

in days

Explanation:

A short term environmental change refers to changes in the environment that happens within a short period of time, for example, flooding, drought, volcanic eruptions etc. In contrast to short term environmental change, long term environmental change takes place over a long period of time hence species have a longer time to adapt to it. Short term environmental changes may or may not be caused by humans. An example of a short term environmental change caused by humans is oil spillage. Short term environmental changes may lead to the the migration of species from the ecosystem.

Short term environmental changes usually occur within a very short time. The greatest time frame in which a short term environmental change can occur is in a matter of days. Only longterm environmental changes span hundreds and thousands of years.

You might be interested in
Why must the sodium hydroxide solution be standardized before use? Why can’t a solution of known concentration just be prepared
kiruha [24]
Sodium hydroxide is deliquescent (absorbs moisture from the atmosphere) solid. It cannot be weighed accurately. Therefore, it is not possible to prepare a standard solution of sodium hydroxide of accurately known concentration by weighing NaOH.
4 0
4 years ago
Read 2 more answers
Show how you could prepare each of the following amines from benzaldehyde by reductive amination:
dimulka [17.4K]

Answer:

Check explanation.

Explanation:

Reductive amination is also known as reductive alkylation. Reductive amination is an good chemical reaction for the conversion of of carbonyl group into amine.

These are the steps to follow for the reaction;

(1). Step one: carbonyl group(either an aldehyde or a ketone) is used to convert amine to form an imine. The pH of the reaction should be slightly acidic.

(2). Step 2: the imine from step one is then converted into iminium ion under acidic condition too(for protonation).

(3). Step 3: the iminium ion is then reduced to the amine.

The equation of reaction are in the attached file.

Note: the attached picture is labelled (A) to (D).

Reaction A is the reaction of benzaldehyde with Benzylamine, B is the reaction of benzaldehyde with dibenzylamine, C is the reaction of benzaldehyde with N,N-Dimethylbenzylamine and D is the reaction of benzaldehyde with N-Benzylpiperidine.

7 0
3 years ago
Label the chemical equation.
labwork [276]

Answer:

Kindly check Explanation

Explanation:

Given the chemical equation:

2 Mg(s) + O2(g) → 2 MgO(s)

2 molecules of Magnesium + Oxygen gas (Reactant)

→ ( yield)

2 molecules of magnesium oxide (product)

2 in Mg and MgO (coefficients)

2 in Oxygen gas (subscript)

Solid (s) - physical state of Reactant Mg

Gas (g) - physical state of Reactant O2

Solid (s) - physical state of product 2MgO

5 0
4 years ago
Which of these is a characteristic of pseudoscience but not a characteristic of science? (4 points)
Galina-37 [17]

Answer:

The Answer is B

Explanation:

7 0
3 years ago
How much energy is released if a sample loses 0.025 kg mass through<br> radioactive decay?
allochka39001 [22]

Answer:

C

Explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • Determine how many moles of Ba(OH)2 are required to completely neutralize 0.117 mole of HC2H3O2.
    11·1 answer
  • When solutions of silver nitrate and calcium chloride are mixed, silver chloride precipitates out of solution according to the e
    7·1 answer
  • A student inflates a balloon for a party inside her house, where the temperature is 23°C. She then takes the balloon outside, wh
    13·2 answers
  • Which statements best describe displacement? Check all that apply. Displacement is measured along the path an object travels. Di
    12·2 answers
  • How much heat is required to warm 1.30 l of water from 24.0 ∘c to 100.0∘c? (assume a density of 1.0g/ml for the water.)?
    10·1 answer
  • urgent please help!!!!!! Which factors add to the greenhouse effect and are caused by human activities? Select two options. a de
    15·1 answer
  • Zinc reacts with hydrochloric acid according to the reaction equation Zn ( s ) + 2 HCl ( aq ) ⟶ ZnCl 2 ( aq ) + H 2 ( g ) How ma
    11·1 answer
  • Please help ASAP! Which expression is equal to the number of kilograms (kg) in 3700 milligrams
    9·1 answer
  • How many grams are in 7 moles of water H2O molecules
    7·1 answer
  • Testbank, Question 143 A compound with molecular formula C8H14O4 exhibits a triplet at δ 1.3 (6H), a singlet at δ 2.6 (4H) and a
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!