In a combustion reaction of C3H8 + 5O2 = 3CO2 + 4H2O, how do you know that the first compounds will produce the nuber of what they did? . Also how do you know that this 2Ca + O2= 2CaO?
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The bright-red color of highway safety flares comes from strontium ions in salts such as Sr(NO3)2 and SrCO3. Burning a flare produces strontium ions in excited states, which then emit red photons at 606 nm and several wavelengths between 636 and 688 nm. Calculate the energy (in Joules per mole) of the 649 nm emission.
Which statement describes the particles of an ideal gas based on the kinetic molecular theory?(1) The gas particles are relatively far apart and have negligible volume. (2) The gas particles are in constant, nonlinear motion. (3) The gas particles have attractive forces between them. (4) The gas particles have collisions without transferring energy.
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The answer is: The name of the positively charged nonmetal ion is changed to end in –ide.
For example, a chemical compound containing sodium and chlorine is binary ionic compound sodium chloride (NaCl).
In this compound, sodium (Na) has positive charge and chlorine (Cl) has negative charge.
Chlorine is nonmetal and sodium is metal.
Metals have positive charge and nonmetals negative.
Hope this help!
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Answer:
A carbon-14 atom has 6 protons, 8 neutrons and 6 electrons. The number 12 or 14 in the name of carbon-12 and carbon-14 refers to their atomic mass.
Explanation:
Those atoms that have the same "atomic number" but differente "atomic mass" (or atomic weight) are called isotopes.
Atomic number indicates the amount of electrons that an atom has, which matchs with the number of protons it has.
Atomic mass indicates the sum of protons and neutrons that an atom has.
Example with carbon-12:
carbon atomic number = 6 (find this information in a periodic table)
electrons= 6
protons= 6
carbon atomic mass = 12 (find this information in a periodic table)
neutrons= atomic mass - number of protons= 12-6 = 6 neutrons
Using the same analysis for carbon-14:
carbon atomic number = 6
electrons= 6
protons= 6
carbon atomic mass = 14
neutrons= atomic mass - number of protons = 14-6 = 8 neutrons
In this way, carbon-14 is an isotope of carbon-12 because carbon-14 has the same atomic number than carbono-12 but different atomic mass.
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Answer:
Insurance, Protection, and Premium
Explanation:
Answer:insurance protection premium
Explanation trusttt lol
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the number of moles of CaCl₂ present - 12 mol
Volume of solution - 3 L
Therefore if 3 L contains 12 mol of CaCl₂
then 1 L of CaCl₂ contains -
Therefore molarity of CaCl₂ is 4 M
They are made up of atoms of only one type of element.
They are made up of particles that are arranged in a repeating pattern.
They are made up of a random ratio of elements that are bonded together.
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Hope my answer would be a great help for you. If you have more questions feel free to ask here at Brainly.
Ionic compounds are made up of particles that are arranged in a repeating pattern. Therefore, the correct option is option C.
A specific class of chemical compound known as an ionic compound is created when two or more atoms share electrons. It is made up of anions, which are negatively charged ions, and cations, which are positively charged ions. Most frequently, ionic compounds are created when a metal interacts with a non-metal. The non-metal atom receives one or more electrons to become an anion during this reaction, whereas the metal atom loses one or more electrons to become a cation. The development of a stable ionic compound happens as a result of the electrostatic forces that draw these oppositely charged ions to one another.
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