3 years ago

The leading cause for dementia is Alzheimer's disease. True False

1 answer:

7 0

True.

Dementia's main cause is Alzheimer's disease (50%-70% of cases). You can find it in the DSM-5 as Major Neurocognitive Disorder due to Alzheimer's Disease.

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How many mL of .450 M HCL is needed to neutralize 30mL of .150 M Ba(OH)2

Aleks04 [339]

You need .556M HCL to neutralize that

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2 years ago

Sodium thiosulfate, Na 2S 2O 3, is used as a "fixer" in black and white photography. Identify the reducing agent in the reaction

Tatiana [17]

Answer: Reducing agent in the given reaction is $S_{2}O^{2-}_{3}$ .

Explanation:

A reducing agent is defined as an element which tends to lose electrons to other element leading to an increase in its oxidation number.

In the given reaction, oxidation state of sulfur in $S_{2}O^{2-}_{3}$ is +2 and $I_{2}(aq)$ has 0 oxidation state.

In $S_{4}O^{2-}_{6}(aq)$ oxidation state of S is 2.5 and in $2I^{-}(aq)$ oxidation state of I is -1.

Since, an increase in oxidation state of S is occurring from +2 to +2.5. Hence, it is acting as a reducing agent.

Thus, we can conclude that reducing agent in the given reaction is $S_{2}O^{2-}_{3}$ .

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2 years ago

Create and balance a chemical equation for the following statement.

m_a_m_a [10]

FeCl₂ + 2NH₄OH → Fe(OH)₂ + 2NH₄Cl

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2 years ago

An ionic compound has a very negative heat of solution in water. Would you expect it to be soluble or insoluble in water?.

ddd [48]

Answer:

It will be Insolube in water

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2 years ago

I’ll give the brainliest to whoever gets it right!!!

kramer

Answer:

itll slowly decay

Explanation:

i hope this helps

8 0

2 years ago