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Yuliya22 [10]
3 years ago
15

Heisenberg’s uncertainty principle states that _______.

Chemistry
1 answer:
jolli1 [7]3 years ago
8 0
His principle is that we can either know the location or the speed of an electron at that specific moment but never both at once. So your answer is C.
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Table salt, NaCl, is an example of an amorphous solid.<br> TRUE<br> FALSE
prohojiy [21]
False, it is an example of an Ionic solid
3 0
3 years ago
Read 2 more answers
The value of ΔG° at 181.0 °C for the formation of calcium chloride from calcium metal and chlorine gas is ________ kJ/mol. At 25
aleksandr82 [10.1K]

Answer:

\Delta G^{0} at 181.0 ^{0}\textrm{C} is -723.3 kJ/mol.

Explanation:

We know, \Delta G^{0}=\Delta H^{0}-T\Delta S^{0}

where, T is temperature in kelvin.

Let's assume \Delta H^{0} and \Delta S^{0} does not change in the temperature range 25.0 ^{0}\textrm{C}  - 181.0 ^{0}\textrm{C}.

181.0^{0}\textrm{C} = (273+181.0) K = 454.0 K

Hence, at 181.0 ^{0}\textrm{C}, \Delta G^{0}=(-795.8kJ/mol)-[(454.0 K)\times (-159.8\times 10^{-3}kJ/K.mol)]

        = -723.3 kJ/mol

5 0
4 years ago
the density of ethanol is 0.789g/ml at 20°c. find the mass of a sample of ethanol that has a volume of 150.0 ml at this temperat
dlinn [17]
Density=mass/volume

O.789 g/ml=m/150ml
M=0.789*150=118.35 g
7 0
3 years ago
If you react 59.54 g of S and 78 g of HNO3, how many grams of NO2 can you
Novay_Z [31]

Answer:

56.94759 grams of NO2

Explanation:

Stoichiometric Equation:

1 S + 6 HNO3 → 1 H2SO4 + 6 NO2 + 2 H2O.

This is so you can create ratios between each compound in the reaction, and identify the limiting and excess reactants to determine exactly how much can be produced?

The coefficients or molecular quantity of each compound in the balanced equation represents the amount of moles.

To figure out how much can be produced, you have to convert 59.54 g of S into moles of S and 78 g of HNO3 into moles of HNO3.

A reference such as a periodic table can be very helpful as it has the atomic mass of each element which is the mass with respect to 1 mol of that element.

6 0
3 years ago
During evaporation, the volume of the liquid decreases and the liquid becomes what??? ​
oee [108]

Answer:

Evaporation happens when a liquid substance becomes a gas. When water is heated, it evaporates. The molecules move and vibrate so quickly that they escape into the atmosphere as molecules of water vapor. ... Once water evaporates, it also helps form clouds

4 0
3 years ago
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