The flow of electricity is an electric current. A path that an electric current follows is a circuit. A battery supplies energy to move electricity through a circuit.
Yes, the law of thermodynamics, or Law of Conservation of Energy
Mass of K = 39.1g/mole
Mass of H = 1g/mole
Mass of C = 12g/mole
Mass of O = 16g/mole
Mass of KHCO3 = 39.1 + 1 + 12 + 3*16 = 100,1g/mole
100% ------------ 100.1g of KHCO3
x% ----------------- 12g of C
x = 11,99% of C in KHCO3
100% -------------- 100.1 of KHCO3
y% --------------------3*16g of O
y = 47,95% of O in KHCO3
100% ------------- 100.1g of KHCO3
z% ---------------- 1g of H
z = 0,99% of H in KHCO3
11,99% + 47,95% + 0,99% = 60,93% ≈ 61%
<u>answer: C</u>
Answer:
The temperature is the same overtime.
Explanation:
Since the line on the graph is straight the temperature will be constant.
Answer:
2) All four statements are part of Dalton's original atomic theory.
Explanation:
The postulates of the Dalton’s atomic theory are:
- The matter is comprised of small units which are known as atoms.
- The atoms are indivisible which means that they can not be further divided.
- Atoms of the matter can neither be created nor be destroyed in the chemical reaction.
- All atoms of the particular element are identical.
- The atoms of the different elements vary in the size and the mass. and posses different properties.
- The compounds are formed by the different whole number combinations of the atoms.
<u>Hence, all 4 are correct.</u>