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Sonja [21]
3 years ago
7

When the population of organisms in an ecosystem is in balance, we consider the ecosystem to be: A. The ecosystem is in successi

on B. The ecosystem is in equilibrium C. The ecosystem is not balanced D. The ecosystem is endangered
since there is no " science " subject I put chemistry.
Chemistry
1 answer:
krek1111 [17]3 years ago
7 0
The answer is B. Equilibrium means a state in which opposing forces or influences are balanced.
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When we write the formula for an ionic compound, we are merely indicate the "molecules" in the compound with that formula. expla
belka [17]
When writing an ionic compound formula, a "molecular" form is used.  The formula is made with allowance for ion charges.
For example,
Ca²⁺ and NO₃⁻ ⇒ Ca(NO₃)₂
Al³⁺ and SO₄²⁻  ⇒ Al₂(SO₄)₃
3 0
3 years ago
What's the boiling point of water at 0 atmospheric pressure?
nirvana33 [79]

Answer:

The water will evaporate and fly out of the bucket; the process will not stop until there is enough water vapor in the atmosphere that the vapor pressure stops the water from boiling further.

Explanation:

4 0
2 years ago
n the reaction Mg (s) + 2HCl (aq) H2 (g) + MgCl2 (aq), how many moles of hydrogen gas will be produced from 75.0 milliliters of
Xelga [282]
0.075 L * 1.0 M = 0.075 mol HCl
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8 0
3 years ago
The Lucas test has _______ results based on the type of alcohol present because the reaction involves a _________, which is ____
Olin [163]

Answer:

1) positive

2) carbocation

3) most stable

4) faster

Explanation:

A common test for the presence of alcohols can be achieved using the Lucas reagent. Lucas reagent is a mixture of concentrated hydrochloric acid and zinc chloride.

The reaction of Lucas reagent reacts with alcohols leading to the formation of an alkyl chloride. Since the reaction proceeds via a carbocation mechanism, tertiary alcohols give an immediate reaction. Once a tertiary alcohol is mixed with Lucas reagent, the solution turns cloudy almost immediately indicating an instant positive reaction.

Secondary alcohols may turn cloudy within five minutes of mixing the solutions. Primary alcohols do not significantly react with Lucas reagent obviously because they do not form stable carbocations.

Therefore we can use the Lucas reagent to distinguish between primary, secondary and tertiary alcohols.

5 0
3 years ago
A student uses a sample of KOH stock solution and dilutes it to a total of 120 mL. If the diluted solution is 0.60 M KOH and its
Vesnalui [34]

Answer:

5.5

Explanation:

i think so?????????

5 0
3 years ago
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