CHEMISTRY HIGH SCHOOL

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

Answers

Answer 1
Answer: 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.

Related Questions

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In the reaction 2H2 + O2-->2H2O how many hydrogen molecules are needed to produce two water molecules
A speed boat is traveling at 100km/hr. How many hours will it take for the boat to cover a distance of 115km?
What is the name for the following compound ​

During the 1920s, the trial of Sacco and Vanzetti,the Palmer raids, and the revival of the Ku Klux
Klan demonstrate that
(1) nativist sentiments were on the rise
(2) cultural values were similar between urban
and rural Americans
(3) popular support for international involvement
was increasing
(4) public support for limiting immigration was
declining

Answers

The right answer for the question that is being asked and shown above is that: "(2) cultural values were similar between urban and rural Americans." During the 1920s, the trial of Sacco and Vanzetti, the Palmer raids, and the revival of the Ku Klux Klan demonstrate that cultural values were similar between urban and rural Americans

The step in the water cycle in which water vapor becomes liquid water is

Answers

Condensation. It is caused by a change in pressure and occurs when warm air rises, cools, and collides with an object

I.e. a stove pot

Why does a high temperature have to be used to weld pieces of metal together

Answers

because of the metling point of metals, it is difficult to just simply put metal together and have them to stay together without any type of glue or epoxy based creams.

wielding is used to melt the surface or even change the compound completely so they are able to combine with other metals.

same thing with atoms, you need a lot of heat, and speed to simply make salt or even copper because of the elements not really being favorable of each other.

What volume of a 5.0% (v/v) Acetic Acid solution will contain 40.mL of Acetic Acid?

Answers

5.0% ( V/V) :

5.0 mL ------------- 100 mL ( solution )
40 mL --------------- ? ( solution )

V = 40 . 100 / 5.0

V = 4000 / 5.0

V = 800 mL

hope this helps!

How many grams of potassium chloride are produced if 25g of potassium chlorate decompose.

Answers

Answer:15 g KCl

Explanation: 2KClO3->2KCI+3O2

Answer:

2.05

Explanation:

Which statement describes a chemical propertyof sodium?
(1) Sodium has a melting point of 371 K.
(2) Sodium has a molar mass of 23 grams.
(3) Sodium can conduct electricity in the liquid
phase.
(4) Sodium can combine with chlorine to produce
a salt.

Answers

Answer;

(4) Sodium can combine with chlorine to producea salt.

Explanation;

Sodium is an alkali metal (group 1 ) in the periodic table. It is a soft metal, reactive and with a low melting point. It has an atomic weight of 23 grams.

Sodium is a good conductor of electricity due to the presence of delocalized electrons in its metallic structure. It reacts vigorously with water to produce sodium hydroxide and hydrogen.

-When exposed to air, metallic sodium recently cut looses its silvery appearance and acquires an opaque grey color due to the formation of a sodium oxide coating.
(4) Sodium can combine with chlorine to produce a salt is the correct answer. The other three are just physical properties~
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A science class is conducting an experiment that produces noxious fumes. Because of inadequate ventilation, some students begin to feel nauseated and dizzy. The first response should be to
How many hydrogen(H) atoms are on the reactants side A.2B.6C.12D.6
Electrons always fill orbitals in the same order. Each s orbital holds 2 electrons, each set of p orbitals holds 6 electrons, each set of d orbitals holds 10 electrons, and each set of f orbitals holds 14 electrons. The order in which orbitals are filled, from first to last, is: 1s 2s 2p 3s 3p 4s 3d 4p 5s 4d 5p 6s 4f 5d 6p 7s 5f 6d 7p To what element does the following electron configuration correspond? 1s22s22p4 A. aluminum: 13 electrons B. oxygen: 8 electrons C. boron: 5 electrons
3 clues that indicate a chemical change