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Olegator [25]
2 years ago
14

Why are there different theories about the effects of global warming? a. There is no data to support global warming. b. Global c

limate is complex, so changes in global climate are hard to predict. c. Increased levels of carbon dioxide are offset by other changes. d. There has been a decrease of extreme weather.
b
Chemistry
1 answer:
marin [14]2 years ago
3 0
Option B: 
Global climate is complex, so changes in global climate are hard to predict. 
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When the procedure calls for making a more dilute solution of an acid, or mixing an acid with other solutions, what is the corre
Fed [463]

Answer:

The correct order it b. always add acid last.

Explanation:

Adding acid first could result on a violent reaction and heat or fumes can be generated. The best approach is to always add all the water or non-acid component first, or add a significant portion before adding the acid slowly to the mixture.

7 0
3 years ago
Write a chemical equation for the dissolution of the AgCl precipitate upon the addition of NH,(aq).
Kobotan [32]

Explanation:

White precipitate of silver chloride get dissolves in excess ammonia to formation of complex between silver ions, chloride ions and ammonia molecules.

The chemical reaction is given as:

AgCl(s)+2NH_3(aq)\rightarrow Ag[(NH_3)_2]^+Cl^-(aq)

When 1 mole of silver chloride is added to 2 mole of an aqueous ammonia it form coordination complex of diaaminesilver(I) chloride.

7 0
2 years ago
Given the following reaction: 2H2(g) + O2(g) à 2H2O(g) answer the following questions:
lora16 [44]

Answer:

Explanation:

2 moles hydrogen reacts with one mole of oxygen to give 2 moles of water.

a ) rate of consumption of hydrogen ( moles per second)  is twice the rate of consumption of oxygen .

b ) rate of formation of water ( moles per second ) is twice the rate of consumption of oxygen

c ) rate of formation of water ( moles per second ) is equal to  the rate of consumption of hydrogen.

6 0
2 years ago
Copper is an example of a(n) __________.
navik [9.2K]
The answer is D. element

It's not a mixture, just a pure element. Copper (Cu) is found on the Periodic Table of the Elements, where only ELEMENTS are organized.
7 0
3 years ago
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Write a hypothesis about the addition of compost (nutrients) to the soil and ecological succession using this format: “If . . .
nlexa [21]

Answer:

This is the correct answer please give me 5-star and likes

Explanation:

If nutrients are added to an ecosystem, then the composition of the plant community at different stages of succession will also change because different species take advantage of different soil conditions.

5 0
3 years ago
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