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motikmotik
4 years ago
6

What is required in order to determine whether or not an object moves?

Chemistry
2 answers:
frez [133]4 years ago
4 0

Answer:

Explanation:

a reference point

AysviL [449]4 years ago
3 0

Answer:

A reference point.

Explanation:

Reference point:

A reference point is a point which is used to determine weather the object is in motion or not. The moving object is compared with the reference point.

An object is in the state of motion when its distance is changed relative to the other object or reference point.

In order to determine weather an object is moving or not a point of reference is needed.

Without reference point displacement can not be measured

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Fantom [35]
Fat and soap are different substances. <span>One reason is that they have a different malleability. The Soap is very hard and sturdy. The fat is soft. Also, soap and fat are different because they had different smells. The soap had a refreshing smell and a soapy one and the fat smelled rubbery like Play-doh.  Another reason why fat and soap are different substances is that they don’t dissolve the same in water and oil. Soap is soluble in water and shortening is not soluble in water. Soap is not soluble in oil and shortening is soluble in oil. In the water shortening did not become cloudy but soap did. When placed in oil, the shortening disappeared completely, while soap did not change at all.The melting point of the fat was 57.6 we could not find the melting point of the soap. The soaps melting point is higher than the water's boiling point. A property is something that describes an object and does not change. For example, the soap is white, where the fat is off white. Color is a property. Fat and soap are also different because they have different densities. The soap sank but the fat floated. The density of fat is about .88 g/ml and the density of soap is about 1.18 g/ml. </span><span>Fat and soap are not the same substances one reason is they have different properties.Malleability, hardness, solubility, melting point,color, and density are all properties. </span>A property is a characteristic of a substance that does not change. Different substances have different properties.<span> If they had the same properties, they would be the same substance, but, since they don’t, they are different substances.

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5 0
4 years ago
4al + 3o2 → 2al2o3 indicate how many electrons are transferred in the formation of one formula unit of product.
nekit [7.7K]

The balanced reaction is:

<span>4 Al  +  3 O2  -->  2 Al2O3</span>

 

Each Aluminum atom wants to lose 3 electrons to become isoelectronic with Oxygen. Each Oxygen on the other hand wants to gain 2 electrons. Since the reaction shows 6 Oxygen atoms in the product and each want to gain 2 electrons, therefore a total of 12 electrons are transferred. Since the problem ask for the electrons transferred per formula unit, hence:

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6 0
3 years ago
Where is the oldest rock layer in the dome?
xeze [42]

Answer:

the oldest rocks are in the center of the dome structure.

Explanation:

7 0
3 years ago
Read 2 more answers
Enter your answer in the provided box. Liquid methanol (CH3OH) can be used as an alternative fuel in pickup and SUV engines. An
andreyandreev [35.5K]

Answer: E=∆H*n= -40.6kj

Explanation:

V(CO) =15L=0.015M³

P=11200Pa

T=85C=358.15K

PV=nRT

n=(112000×0.015)/(8.314×358.15)

n(Co)= 0.564mol

V(Co)= 18.5L = 0.0185m³

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T= 75C = 388.15k

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=0.317mol

∆H =∆Hf{CH3OH}-∆Hf(Co)

∆H=-238.6-(-110.5)

∆H = 128.1kj

E=∆H×n=-40.6kj.

3 0
3 years ago
if 3.26 g is dissolved in enough water to make exactly 323 ml of solution, what is the molar cocentration of nitrate ion g
AnnyKZ [126]
Divide both sides to get 104 and that’s your answer
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