A substance has a mass of 10 grams and a volume of 5mL. What is its density?
Answers
Answer:
The answer is
2.0 g/mL
Explanation:
The density of a substance can be found by using the formula
From the question
mass = 10 g
volume = 5 mL
The density of the substance is
We have the final answer as
2.0 g/mL
Hope this helps you
Related Questions
1) This method is a technique used in separating a less-dense substance from a denser one. A. Evaporation. B. Decantation. C. Picking. D. All of the above. 2) What will happen to the less-dense substance of mixtures if you separate them using decantation method? A. Remain the same. B. It will become solid. C. It will evaporate. D. It will float up. 3) In the process of decantation, the mixture is left: A. Behind. B. Undisturbed. C. Removed. D. None of the above. 4) How can the decantation method be useful in everyday life? A. It helps us to become more productive. B. It gives us satisfaction in our everyday living. C. It's just an ordinary technique. D. It helps us to make our everyday living more efficient and easier.
which element is the most electronegative out of the following K Mn Br WILL MARK BRAINLIEST!
Doing another onee! 50 points for answering thiss!
An inherited behavior that helps an animal meet its needs
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Final answer:
The reaction PCl5 + 4H2O -> H3PO4 + 5HCl involves 5 moles of HCl and 4 moles of water. Thus, for every mole of HCl produced, 0.8 moles of water is consumed. Hence, in this scenario, 2.76 moles of water would have been consumed to produce 3.45 moles of HCl.
Explanation:
In the balanced equation, PCl5 + 4H2O -> H3PO4 + 5HCl, you notice that 4 moles of water react with PCl5 to produce 5 moles of HCl. This means for every mole of HCl produced, 0.8 moles of water would have been consumed (4 moles / 5 moles).
So, if the reaction results in 3.45 moles of HCl, we can calculate the number of moles of water that reacted by multiplying the moles of HCl by 0.8. This gives us 2.76 moles of water.
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Final answer:
By creating a proportion based on the balanced chemical equation, it is determined that 2.76 moles of water reacted with PCl5 to produce 3.45 moles of HCl.
Explanation:
To determine how many moles of water reacted if 3.45 moles of HCl are produced, we refer to the balanced chemical equation:
PCl5 + 4H2O → H3PO4 + 5HClAccording to the equation, for every 5 moles of HCl produced, 4 moles of water are needed. Therefore, you can set up a proportion to calculate the moles of water:
- (Moles of HCl produced / Moles of HCl in the equation) = (Moles of H2O reacted / Moles of H2O in the equation)
- (3.45 moles HCl / 5 moles HCl) = (x moles H2O / 4 moles H2O)
Solving for x gives you the number of moles of water that reacted:
x = (3.45 moles HCl × 4 moles H2O) / 5Thus, x = 2.76 moles of H2O.
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Answer:
use the rule of speed
Explanation:
speed =distance over time
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an activated complex
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Answer: Potassium and chlorine would form an ionic bond due to their large difference in electronegativity values (3.0 for chlorine and 0.8 for potassium). In ionic bonding, one atom completely transfers electrons to another atom to form ions with opposite charges that are attracted to each other. Since potassium loses one electron to become a positive ion (K+) and chlorine gains one electron to become a negative ion (Cl-), the resulting compound will be KCl (potassium chloride).
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Answer:
Hypervitaminosis is a serious health issue which is associated with the accumulation of the vitamins in the body. This problem is mainly associated with the fat soluble vitamins.
This is because the fat soluble vitamins gets accumulated in the fatty cells of the body. Whereas, in case of water soluble vitamins it gets dissolved in water and gets eliminated from the body.
So, there is very rare chance that the water soluble vitamin not cause hypervitaminosis.
Final answer:
Hypervitaminosis does not typically occur with water-soluble vitamins because excess amounts are excreted in urine rather than stored in the body, preventing a harmful build-up that could lead to toxicity.
Explanation:
Hypervitaminosis is indeed a health threat associated with excessive intake of fat-soluble vitamins, but water-soluble vitamins do not typically pose this risk because of how our bodies process them. Fat-soluble vitamins, which include vitamins A, D, E, and K, can be stored in our bodies, specifically in our liver and fat tissues. Therefore, consuming them in excessive amounts can lead to accumulation, resulting in toxic effects known as hypervitaminosis.
On the other hand, water-soluble vitamins, which include vitamins B and C, cannot be stored in the body for a long duration. Any excess intake of these vitamins is typically excreted in urine, preventing a harmful build-up in the body, thus reducing the risk of hypervitaminosis.
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2. depends on time of day and time of year
3. most polluting energy source
4. liquid formed from remains of plants and animals
5. renewable source formed from organic material
hydropower
coal
solar
biomass
oil
Answers
The correct matches are as follows:
1. HYDRO POWER: Most common renewable energy source.
Hydro power refers to a type of energy which uses water to produce electricity. This type of energy is derived from the energy of falling water; the energy is used to drive the turbines that generate electricity. The quantity of electricity that can be generated in an hydro power plant depend on the quantity of water available and the height from which the water is falling. Hydro power is a renewable source of energy because of availability of water.
2. SOLAR: Depends on time of day and time of year.
Solar power is the type of electrical power that is derived from the energy of the sun. It is a renewable form of energy and it is considered to be the cleanest and most reliable source of energy. Solar panels are usually used to trap energy from the sun and to convert them to electrical energy. One property of solar power is that, the quantity of solar power that can be obtained depend on the strength of the sun light. On days and time of the year when there is little sunlight, little solar power can only be generated during this time.
3. COAL: Most polluting energy source.
Coal is obtained naturally from underneath the ground through mining. There are different types of coal and these coals were formed millions of years ago. Coal is a non-renewable energy source and is considered to be the most polluting energy source. Burning of coal releases greenhouse gases, which damage the ozone layers. The burning also resulted in production of gases such as carbon monoxide, which brings about acid rain. The extraction of coal also endangered the environment.
4. OIL: Liquid formed from remains of plants and animals.
Crude oil is a natural resource that is obtained from underneath the earth through the process of drilling. Crude oil was formed millions of years ago from the remains of plants and animals. Oil is one of the products that are obtained from the purification of crude oil. Oil is a fossil fuel and it is not renewable. Oil is majorly used to power vehicles and machines. Burning of oil [petrol], results in production of high amount of carbon dioxide and other gases, which pollute the environment.
5. BIOMASS: Renewable source formed from organic material.
Biomass are renewable and energy sources that are formed from organic materials. They are used to create electric power and other forms of power. Examples of materials from which biomass power are derived from are: animal wastes, forest debris, certain waste residues, certain crops and woody fuels. Energy in biomass are released in form of heat when they are burned. The heat is used to power turbines, which generate electricity.
Energy can neither be created nor be destroyed, which can only be transformed into one form or another. The energy obtained from different sources has different properties.
Which of the following energy sources matches correctly with its description?
- Hydropower is the most common renewable energy source, in which water is used to generate electricity. The energy is derived from the use of turbines. It is a renewable source of energy due to the availability of water.
- Solar energy depends on the day and time of the year. Solar energy refers to energy utilized from the sun's rays. The day and time of the year are important in deriving solar energy.
- Coal is the most polluting energy source. It is formed from the remains of fossils billion years ago and produces harmful and toxic gases to the environment when burnt. It is the most common source of air pollution.
- Oil is the liquid produced from the dead remains of plants and animals. It is also referred to as crude oil, which is used as fossil fuel and is not renewable.
- Biomass is a renewable energy source that is produced from organic materials. Electric power can be generated using biomass. Animals' watches, certain residues, and forest debris are the biomass and when burnt produce heat.
Thus, energy is a vital source required to carry out many actions and activities, which can be obtained from different sources.
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