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makvit [3.9K]
3 years ago
10

describe how a physical property, such as mass or texture, can change without causing a chance in the substance?

Chemistry
2 answers:
OLga [1]3 years ago
7 0
Mass can't be changed, It is not variable so it will stay the same in any condition. Texture on the other hand is variable it will change under the pressure or the atmosphere.
Verizon [17]3 years ago
5 0

mass cannot change as it is not a variable :)
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Why is the mass in amu of a carbon-12 atom reported as 12.011 in the periodic table of the elements?
Bas_tet [7]

The mass of an element listed in the Periodic Table is the weighted average of all its naturally occurring isotopes.

Naturally occurring carbon is about

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That extra carbon-13 makes the <em>average atomic mass</em>  greater than 12.000 u.

7 0
3 years ago
A cup of gold colored metal beads was measured to have a mass 425 grams. By water displacement, the volume of the beads was calc
Troyanec [42]

Given parameters;

Mass of gold colored metal beads  = 425g

Volume of water displaced by beads = 48.0cm³

Unknown;

Identity of the metal = ?

Given densities;

Gold: 19.3 g/mL

Copper: 8.86 g/mL

Bronze: 9.87 g/mL

Density is an intensive property of any substance. This implies that we can use the density of any substance to identify it.

Density can be defined as the mass per unit volume of a substance. Every substance has a unique mass per volume.

 Mathematically;

                    Density  = \frac{mass}{volume}

where mass is in kg or g

           volume is in  m³ or cm³

To find the density, we must know the mass and volume.

In this problem, the volume of the gold metal beads is the same as the volume of water displaced. This is a way to measure volume of solids.

Since the volume is given in cm³, and we are comparing with choices that have units in g/mL, we simply convert the volume in cm³ to mL

                   1cm³  = 1mL³

So therefore, volume of gold colored metal is 48mL

Now input the parameters given and solve for the density;

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From the given densities, we clearly see that copper is the metal since they both of similar densities.

4 0
3 years ago
. Does a more negative heat of formation (a larger negative number) mean that a compound is more stable or less stable than an i
Elis [28]

Answer:

See explanation

Explanation:

Heat of formation, also called standard heat of formation, enthalpy of formation, or standard enthalpy of formation, the amount of heat absorbed or evolved when one mole of a compound is formed from its constituent elements, each substance being in its normal physical state (gas, liquid, or solid)(Encyclopedia Britannica).

The greater the magnitude of the negative value  of the heat of formation(the more negative), the greater stability of the compound formed. Hence, a more negative heat of formation (a larger negative number) means that a compound is more stable than an isomer with a less negative heat of formation.

6 0
3 years ago
Please help with whatever this is and go in number order
Alenkinab [10]
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Heat capacity of a material is dependent upon the material's mass.<br> True or false?
Ymorist [56]

Hello

Answer:

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(3) the substance and phase of the substance.

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