Answer:
carbon
Explanation:
cabonis not a conductor of heat
Answer: Divide the mass of the first dissolved component by the solution mass, and then multiply the result by 100 to calculate the mass percentage. In our example, the first dissolved compound is NaCl; the mass percent is (10 g / 136 g) x 100 percent = 7.35 percent.
Explanation: its up, look
Answer:
An atom of ¹¹⁸Xe contains 64 neutrons.
Explanation:
Number of Protons:
The number of protons present in any atom are equal to the atomic number of that particular atom. Hence, as the atomic number of Xenon is 54 therefore, it contains 54 protons.
Number Neutrons:
The number of neutrons present in atom are calculated as,
# of Neutrons = Atomic Mass - # of protons
As given,
Atomic Mass = 118
# of Protons = 54
So,
# of Neutrons = 118 - 54
# of Neutrons = 64
Answer:
Following are the responses to the given choices:
Explanation:
- Air woods is a smoking process as it releases heat.
- Incasereaction produces reaction energy, the response is then exothermic, while absorbs react energy, therefore the response is exothermic.
- Heat is essential for melting ice. Correspondingly, ice melts into liquid water as well as other reactions stop.
- Feel cold due to fuel absorption. That ice pack thus feels cold and brings another micro reaction to the stop.
- Unless the reaction's heat is positive, that process is endothermal.
- The reaction is exothermic unless the heat from the reaction is bad.
- Feel hot due to its loosening energy. A test tubefeelhot is, thus, an exothermic reaction.