Answer:
TRUE
Explanation:
Na2CO3 Na2O +CO2 CO2 is the answer
When a single compound breaks down into two or more compounds or elements in a chemical reaction then it is known as decomposition reaction.
The chemical symbol for sodium carbonate is .
The decomposition of sodium carbonate is:
The decomposition of sodium bicarbonate, will result in the formation of sodium oxide, and carbon dioxide, .
Hence, carbon dioxide, will produce with sodium oxide, on decomposition of .
b. gram
c. angstrom
d. nanogram
The volume of the gas sample would be 477.78 mL.
The student is asking about the change in volume of a gas sample when the pressure is increased. This can be solved using Boyle's law, which states that the pressure and volume of a gas are inversely proportional at constant temperature. The equation for Boyle's law is: P1 * V1 = P2 * V2
We are given the initial conditions: T1 = 25.2°C, V1 = 536 mL, and P1 = 0.838 atm. We need to find V2 when P2 = 0.937 atm. Using the Boyle's law equation, the volume can be calculated as: V2 = (P1 * V1) / P2
Plugging in the values, we get: V2 = (0.838 atm * 536 mL) / 0.937 atm = 477.78 mL
Therefore, the volume of the gas sample would be 477.78 mL (Option A) when the pressure is increased to 0.937 atm.
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Aspirin is less soluble than table salt, but more soluble than carbon dioxide.
A saturated solution of table sugar is more concentrated than a saturated solution of table salt.
Answer:
1,3
Explanation:
got it right on assignment
Answer: A, C and D
Explanation: For me it was D a well as of edge 2022. Hope this help!
(2) 2H2O(l) + energy → 2H2(g) + O2(g)
(3) H2O(l) → H2O(s) + energy
(4) H2O(g) → H2O(l) + energy
The answer is B because energy was added to 2H2O in order to produce a chemical change of 2H2 and 02 seperately.
The balanced equation that represents a chemical change is 2H2O(l) + energy → 2H2(g) + O2(g).
The balanced equation that represents a chemical change is (2) 2H2O(l) + energy → 2H2(g) + O2(g). In this equation, we see the reactant, water (H2O), being converted into two separate products, hydrogen gas (H2) and oxygen gas (O2), with the addition of energy. This indicates a chemical change taking place where new substances are formed.
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