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OverLord2011 [107]
3 years ago
10

A person's _____ changes as he travels from the earth to space, but his _____ remains the same.

Chemistry
2 answers:
irina1246 [14]3 years ago
6 0

Answer: weight , mass

Explanation:

Mass is defined as the amount of matter contained in a body. It is measured in units of kg, g and mg.

Weight of an object is the force acting on an object by virtue of its mass.

weight=m\times g

m =  mass

g = acceleration due to gravity

As the value of g keeps changing from earth to space, the weight of the person would also keep changing. The mass of the person will remain same .

EleoNora [17]3 years ago
4 0
A persons weight changes as he travels from earth to space but his mass remains the same
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Write balanced chemical equations for the complete neutralization reactions that take place when the following acids are titrate
swat32

Answer:

(a) NaOH_{(aq)} + HCl_{(aq)} --> NaCl_{(aq)} + H_2O_{(l)}

(b) NaOH_{(aq)} + CH_3COOH_{(aq)} --> CH_3COONa_{(aq)} + H_2O_{(l)}

(c) H_3PO_4_{(aq)} + 3NaOH_{(aq)} --> 3H_2O{(l)} + Na_3PO_4_{(aq)}

Explanation:

For a reaction involving sodium hydroxide and hydrochloric acid, the balanced equation of reaction is:

NaOH_{(aq)} + HCl_{(aq)} --> NaCl_{(aq)} + H_2O_{(l)}

For a reaction involving sodium hydroxide and acetic acid, the balanced equation of reaction is:

NaOH_{(aq)} + CH_3COOH_{(aq)} --> CH_3COONa_{(aq)} + H_2O_{(l)}

For a reaction involving sodium hydroxide and phosphoric acid, the balanced equation of reaction is:

H_3PO_4_{(aq)} + 3NaOH_{(aq)} --> 3H_2O{(l)} + Na_3PO_4_{(aq)}

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Which of the following is the correct formula for cesium sulfide
snow_lady [41]

Answer:

Cs2S

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7 0
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He standard reduction potentials of lithium metal and chlorine gas are as follows: reaction reduction potential (v) li+(aq)+e−→l
AURORKA [14]

 2 Li(s)  +Cl₂→  2 Li⁺ (aq)  + 2Cl⁻ (aq)

The cell potential   of  the reaction above   is +4.40V

<em><u>calculation</u></em>

Cell  potential  =∈° red - ∈° oxidation

in  reaction above  Li  is  oxidized from oxidation state 0 to +1 therefore the∈° oxid = -3.04

  Cl  is  reduce   from oxidation  state 0 to -1 therefore  the ∈°red = +1.36 V

cell  potential is therefore = +1.36 v -- 3.04  = + 4.40 V

3 0
3 years ago
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rosijanka [135]

Dalton's atomic theory was the first complete attempt to describe all matter in terms of atoms and their properties.

Dalton based his theory on the law of conservation of mass and the law of constant composition.

The first part of his theory states that all matter is made of atoms, which are indivisible.

The second part of the theory says all atoms of a given element are identical in mass and properties.

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The fourth part of the theory states that a chemical reaction is a rearrangement of atoms.

Parts of the theory had to be modified based on the discovery of subatomic particles and isotopes.


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