In which type of reaction do two lighter nuclei combine to form one heavier nucleus?(1) combustion (3) nuclear fission
(2) reduction (4) nuclear fusion
Answers
Answer:
Nuclear Fusion
Explanation:
In nuclear fusion two lighter nuclei combine together in order to form one heavier nucleus.
For example, the energy generated from the Sun is made by nuclear fusion: Two hydrogen (H, atomic number 1) nuclei combine in order to form one helium (He, atomic number 2) nucleus.
Nuclear fission is the opposite reaction, in which one heavier nucleus splits into two lighter nuclei.
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Express the answer in scientific notation and with the correct number of significant figures: (6.32 x 10-4) ÷ 12.64Your answer should have the same number of significant figures as the starting measurement. 872.4 mm =
Describe your accuracy of your density measurements asummunf that you correctly identified your mystery solid and liquid
Answers
Answer:
bakukiri
Explanation:
hmmmm...
Answer:
BakuKiri I think is canon
Explanation:
Cause th crator made it like that :v
Answers
3 moles O₂ -------------> 2 moles Al₂O₃
? moles O₂ --------------> 1.00 mole Al₂O3
O₂ = 1.00 * 3 / 2
O₂ = 3 / 2
= 1.5 moles of O₂
Molar mass O₂ = 32.0 g
1.5 * 32.0 = 48 g of O₂
hope this helps!
Grams of the gas can be estimated by multiplying the moles and the molar mass. To produce 1 mole of aluminum oxide, 48 gms of oxygen is required.
What is mass?
The mass of the substance is the product of the moles and the molar mass of the given substance.
The balanced chemical reaction is shown as:
4 Al (s) +3 O₂ (g) → 2 Al₂O₃ (s)
From the above reaction, it can be concluded that:
3 moles of oxygen = 2 moles of aluminum oxide
So, x moles of oxygen = 1.00 moles of aluminum oxide
x is calculated as:
x = 3 ÷ 2 = 1.5 moles
Mass of oxygen:
mass = moles × molar mass
= 1.5 × 32
= 48 gms
Therefore, 48 gms of oxygen is required to produce 1 mole of aluminum oxide.
Learn more about mass here:
#SPJ5
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Answers
Answer: Option (a) is the correct answer.
Explanation:
Conservation efforts means to carefully preserve or protect something. These efforts are fruitful when a majority of people or communities come together in order to preserve something good for the betterment of environment.
As when maximum number of people come lend their hands for help only then conservation efforts can be achieved.
For example, a city with maximum pollution can only be conserved when maximum groups of people decide to conserve plants or plant more number of trees.
Thus, we can conclude that conservation efforts are most effective when conservation efforts are most effective when multiple groups cooperate.
Answers
Answer : The correct option is, 336 K
Explanation :
The conversion used for the temperature from degree Celsius to Kelvin is:
where,
= temperature in Kelvin
= temperature in centigrade
As we are given the temperature in degree celsius is,
Now we have to determine the temperature in Kelvin.
Therefore, the temperature in Kelvin is 336 K.
T = 63 + 273
T = 336 K
hope this helps!
Answers
Answer: About (50-90) full length hair strands should be collected from the scalp to use as a sample.
Hair is a potent physical evidence, used to proof the culprit of crime. The hair analysis goes with preliminary and confirmatory analysis in forensic lab. This requires ample of sample should be available for analysis and comparison. Therefore, about (50-90) full length hair strands should be collected from the scalp to use as a sample.