Answer:
1.Chemistry helps you to understand the world around you.
2. Basic knowledge of chemistry helps you to read and understand product labels.
3. a command of chemistry can help keep you safe!
Answer:
Dalton's atomic theory consisted of several postulates.
Explanation:
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All matter consists of indivisible particles called atoms.
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Atoms of the same element are similar in shape and mass, but differ from the atoms of other elements.
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Atoms cannot be created or destroyed.
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Atoms of different elements may combine with each other in a fixed, simple, whole number ratio to form compound atoms.
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Atoms of same element can combine in more than one ratio to form two or more compounds.
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Atoms are the smallest unit of matter that can take part in a chemical reaction.
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NaHCO3 is the required substance often used in antacid and is used in Soda Acid Fire Extinguisher.
Total Pressure = A partial + B partial….
35+5+25 = 65.0 atm
Answer:
B
Explanation:
Trust me I've had problems like these