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RoseWind [281]
4 years ago
5

Why is it important to know the difference between physical properties and chemical properties

Chemistry
2 answers:
steposvetlana [31]4 years ago
8 0
Because physical you can cause the change. chemical happens on its own 
pochemuha4 years ago
3 0
To find the correct equations
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Is the temperature of absolute zero measured in celsius A.-373 B.-73 C.-173 D.-273
Andrew [12]

Answer:

Option D is correct = -273 °C

Explanation:

Data given:

Temperature of absolute zero

Absolute Zero in Celsius = ?

Solution:

As we know

internationally the temperature of Absolute zero on kelvin scale  = 0 K

So to convert Kelvin temperature to degree Celsius formula will used

                  T(K) = T(°C) + 273

Rearrange the above equation for °C

                  T(°C) = T(K) - 273 . . . . (1)

Put value in above eq.1

                  T(°C) = 0 - 273

                  T(°C) =  -273

So,

The absolute zero in °C = -273

so option D is correct

3 0
3 years ago
The density of a mixture measures 1015.3 kilograms per cubic meter. Use scientific notation to represent the density of the mixt
nata0808 [166]
1.0153 x 10^3

essentially, scientific notation requires you to take a very large or very small number and simplify it into the first few digits times 10 raised to the power of x.
Although realistically, there is no practical reason to simplify a number that is already that close to 1.

3 0
3 years ago
Read 2 more answers
Jill then wrote the formulas for all the possible compounds that sodium can form with the other ions. What formulas did she writ
sp2606 [1]

Explanation:

Sodium has atomic number of 11 and its electronic configuration is given by:

[Na]=1s^22s^22p^63s^1

The nearest stable electronic configuration to sodium is of the neon. So, in order to attain stability of noble gas it will loose its single electron.

Na\rightarrow Na^++1e^-

[Na^+]=1s^22s^22p^63s^0

Sodium has single valency that is 1.

Let nbe the valency of the ion 'X'

By criss-cross method, the oxidation state of the ions gets exchanged and they form the subscripts of the other ions. This results in the formation of a neutral compound.

Na_nX_1

So, the formulas for all the possible compounds that sodium can form with the other ions will be:

Na_nX_1

4 0
4 years ago
(3 points)
Paul [167]
An increased number of rod cells
5 0
4 years ago
Read 2 more answers
What is the effect of decreasing the volume of the reaction mixture? What is the effect of decreasing the volume of the reaction
fgiga [73]

Answer:

By decreasing the volume, the equilibrium will shift to the side with the smallest amount of particles

Explanation:

Step 1: Data given

The principle of Le Chatelier says:

When the volume is decreased, the equilibrium will shift to the side of the smallest number of particles.

2NOBr(g) ⇌ 2NO(g)+Br2(g)

In the following example, we have 2 moles of NOBr (on the left side) and 3 moles of gas on the right side. This means the left side, the reactant side, has the smallest number of particles.

The equilibrium will here shift to the left side, the side of NOBr.

In the following example

2NO2(g) ⇌ N2O4(g)

We have 2moles of NO2 on the left side and 1 mol of N2O4 on the right side.

By decreasing the volume, the equilibrium will shift to the side of the smallest number of moles. Here this is the right side, the side of N2O4.

5 0
4 years ago
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