Determine the concentration of the sodium hydroxide solutions after being exposed to
air at different time intervals (1, 2, 3, 4 and 5 days).( your answer need to be to 3
decimal places ) show your work
Answer: I don’t know sorry!
Explanation:
Methane (CH4) combines with oxygen gas (O2) to form carbon dioxide (CO2) and water (H2O). Describe the number and type of atoms for a molecule of each substance.
HELP (thanks if you give a good/correct answer)
Answer:
A molecule of methane (CH4) contains 1 carbon atom and 4 hydrogen atoms. A molecule of oxygen gas (O2) contains 2 oxygen atoms. A molecule of carbon dioxide (CO2) contains 1 carbon atom and 2 oxygen atoms. A molecule of water (H2O) contains 2 hydrogen atoms and 1 oxygen atom.
The article states, "No matter what phase the Moon is in, one thing is the same: half of the Moon ______________.
Answer:
is covered in shadow/is dark
Explanation:
The moon will always have at least half of the moon covered, even if there is more than that. I you have a full moon, you are only being shown the face of the moon that is facing you, meaning the other side is covered by shadow, from there on the rest of the sequence is smaller than a full moon, but there will always be AT LEAST half the moon showing.
PLEASE HELP NEED IT NOW
what are the differences between a solute and a solution
help giving 50 pointss
A solute is the substance that is being dissolved in a solution. It is the component of the solution that is present in the smaller amount. For example, sugar is a solute when it is dissolved in water to make a sugar solution.
A solution, on the other hand, is a homogeneous mixture of two or more substances. It is made up of a solvent, which is the substance that dissolves the solute, and the solute itself. In the example of sugar in water, water is the solvent and sugar is the solute.
In summary, a solute is one of the components of a solution and a solution is a homogeneous mixture of two or more substances.
Answer:
a solute is dissolved to find a solution
Explanation:
help
Nicole has 2 glasses on the counter: one of water and one of sugar-water. She is baking a cake and needs to use the sugar-water for the glaze. Both glasses look identical, but one contains a mixture and the other contains a compound.
Is sugar-water a mixture or a compound? Define mixtures and compounds, and explain how, without tasting it, Nicole can test to make sure she is using the sugar-water in the glaze.
Answer:
sugar-water is a mixture not a compound.(homogeneous mixture.)
Explanation:
Compounds are substances formed by the chemical combination of two or more elements. Mixtures are substances formed by physically mixing two or more substances together.
The solution of sugar in water is considered a mixture not a compound because the particles of sugar and water are not completely dissolve nor mixed in a fixed proportion or ratio. hope this helped :)
Help please help help
Which of the following is NOT a cost of using fossil fuels?
Answer: Burning fossil fuels decreases CO2 in the atmosphere
Explanation: Burning fossil fuel actually increases the amount of CO2 in the atmosphere, it doesn't decrease it.
Hope this helps!