A 7.0 liter balloon at room temperature contains helium gas. if the temperature is halved, what happen to the volume?
Answers
The volume = 6.71 L
Further explanation
Charles's Law
When the gas pressure is kept constant, the gas volume is proportional to the temperature
V₁=7 L
T₁=25 °C(room temperature) + 273 = 298 K
T₂=12.5(halved) + 273 = 285.5 K
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How does a prokaryotic cell know how to reproduce? A The instructions necessary are found in the nucleoid. B A hormone is released that prompts a mature cell to mate. C An enzyme reacts with the cytoplasm to create two cells from one. D The DNA in the nucleus provides the instructions to the cell.
what is the volume of a gas at 2.00 atm and 200.0 K if its original volume was 300.0 L at 0.250 atm and 400.0 K
Answers
like gold,
but shatter into many pieces when struck by a
hammer, Iron Pyrite is..........
Answers
Explanation:
When gold is hammered it "squishes". Iron Pyrite is
known as "Fool's Gold". It is not..........
like gold,
but shatter into many pieces when struck by a
hammer, Iron Pyrite is..........
Final answer:
Gold is a malleable metal, able to deform without breaking when hammered. On the contrary, Iron Pyrite or 'Fool's Gold' is brittle; it shatters when struck due to its lack of malleability.
Explanation:
Gold is known as a malleable metal, which means it can be hammered or bent into different shapes without breaking. In contrast, Iron Pyrite, often known as 'Fool's Gold', is brittle, meaning it will shatter or break when struck by a hammer.
Malleability is a physical property of metals that allows them to be hammered or rolled into thin sheets. Gold is one of the most malleable metals and can be hammered into extremely thin sheets.
On the other hand, a brittle material like Iron Pyrite lacks this property of malleability. Instead of deforming under stress, it will fracture, this is why it shatters into many pieces when struck.
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Answers
B. Mechanical- is NOT a type of adaptation
Answers
=
= 0.134 mol
mol of oxygen:
ratio of
= 2 : 15
= 1 : 7.5
: . mol of
= 1.01 mol
Mass of Oxygen = mol * Mr
= 1.01 mol * (16*2) g/mol
= 32.22g
Note: Mr is molar mass
0.75 moles H 2CO 3 = 47 g
3.42 moles CO = 84.0 g
Answers
Answer: 3.42 moles CO = 84.0g, is not true.
Explanation:
Moles is given by the formular; Mass / Molar Mass.
Therefore; 0.2 moles O2 = 6g is true when we multiply 32g x 0.2 = 6g approximately.
0.75 moles H2CO3 = 47g.
Molar formular for H2CO3 = 2 + 12 + 48 =62g.
If we multiply 62g (molar mass ) by 0.75moles, it gives us 47g approximately.
3.42 moles CO = 84g
molar mass of CO = 12 + 16 = 28g
Multiply 28g x 3.42 moles = 95.76g, which is not true.
Answers
Nuclear fission is commonly used in nuclear power plants to generate electricity. The advantage of nuclear fusion is that it has the potential to produce large amounts of energy with minimal waste and no greenhouse gas emissions.
The half-life of a nuclide is crucial for a number of purposes, such as determining the age of archaeological artifacts and determining whether or not the storage of radioactive waste is safe.
The process of breaking up an atomic nucleus into two or more smaller nuclei and releasing a lot of energy is known as nuclear fission. The fission process uses energy to heat water and make steam, which drives turbines that turn into electricity.
The utilization of atomic splitting in power plants enjoys the benefit of delivering a lot of energy with somewhat modest quantities of fuel, and it doesn't discharge ozone depleting substances.
The process of combining two atomic nuclei into a single, more massive nucleus with the release of a significant amount of energy is known as nuclear fusion. This natural process is being investigated as a potential source of energy on Earth and in other stars.
The time it takes for half of a given amount of a radioactive substance to decay is known as the half-life of a nuclide. Scientists can calculate how much of a substance will remain after a certain amount of time by knowing its half-life, allowing them to make educated decisions regarding its safe handling.
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