A calculator answer of 423.6059 should be rounded off to 3 significant numbers. What answer is reported?
Raising the temperature f 10.0 grams of water from 10.0 levels Celsius to 20.0 levels Celsius needs 418 J, while elevating the temperature of 10.0 g of aluminum from 10.0 degrees Celsius to 20.0 levels Celsius requires 89.7 J. More joules are forced to warmth the water because
The temperature of liquid nitrogen is -196 levels C. What is the matching analysis on the Kelvin scale?
When a steel and also a nonsteel react, the ___________________ tends to shed electrons and the _______________ tends to acquire electrons
Electrons in an atom might just have actually specific energy. Because of this, the energy of the electrons in an atom is sassist to be _____________
According to the Heisenberg Skepticism Principle, it is impossible to understand both the position and also the ________________ of an electron
The valence shell of the element X includes 2 electrons in a 5s subshell. Below that shell, element X has actually a partly filled 4d subshell. What form of aspect is X?
Which of the following elements has a ground-state electron configuration different from the predicted one?
Calculate the empirical formula of a compound that has a complace of 5.9% hydrogen and also 94.1% oxygen.
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The empirical formula of a compound is CH2, and its molar mass is around 42. g. What is its molecular formula?
How many moles of H2 bonds are damaged if you react nitrogen with hydrogen according to the followin reaction?N2 + 3H2 ---> 2 NH3
In the reaction of silver nitprice solution, which is colormuch less, via copper metal, metallic silver comes out of solution, and also the solution transforms blue. The blue of the new solution need to be due to_______.
Given that the over energy prorecords have actually the exact same range, which of the reactions is the the majority of exothermic?
If it takes energy to break bonds and you gain power in the development of bonds, how have the right to some reactions be exothermic while others are endothermic?
It is the complete amount of energy that matters. Sometimes some bonds are stronger than others and also so you gain or lose energy when you create them.
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It is a reaction wbelow the commodities have more power than the reactions, It is a reactivity wright here tright here is a net adschoice off power from a reaction, it is a reactivity that requires warmth as a react.All of the above
Four devices of monoatomic substance A combines via one unit diatomic substance B to make the triatomic substance C. Two systems of triatomic substance C combine via one unit of diatomic substance B to make substance D. Place the letter of each substance next to the symbol that finest describes its atomic or molecular structure.