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In the plum pudding model, alpha particles were expected to pass through the foil at different angles and some of them reflected. They realized that there are positive charge atom because it repels. So the plum pudding was replaced by the nuclear model of atom.
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55:28An object is moving across a surface, but it does not gain or lose speed. Which best describes the object's force?The net force is positive.The net force is zero.The positive force is greater than the negative force.The negative force is greater than the positive force.ke this and totumSave and ExitNextS
How many iron atoms are in 0.32 mol of Fe2031? 3.9x 1023 jron atoms O 3.9 iron atoms O 6.02 x 1023 iron atoms 1.9 x 1023 iron atoms O 11x 10-24 iron atoms
Describe the classification of the R group OF AMINO ACID GIVE THE THE EXAMPLES OF EACH CLASS
Akito is warming a test tube over a Bunsen burner. He heats it too much and the glass breaks.Which best describes what Akito should do first?Ο Ο Ο ΟO get paper towelsO change lab stationsturn off the burnerremove his contacts
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The statements is not correct concerning the relationship between attention and perception is that individuals can easily detect changes in the environment when they are absorbed in a task.
What is psychology?
Psychology is defined as the scientific discipline that studies mental state and processes and behavior in human and other animals.
It can also be defined as the scientific study of mind and behavior.
Environment is defined as the sum total of all the living and non living elements and there effect that influences human life.
Thus, the statements is not correct concerning the relationship between attention and perception is that individuals can easily detect changes in the environment when they are absorbed in a task.
To learn more about psychology, refer to the link below:
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Answer:
The answer is Individuals can easily detect changes in the environment when they are absorbed in a task.
Explanation:
41.0 + 78.3 =
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Ans: 1) 1.41
2) 119.3
While adding two numbers, the rule of significant figures requires that the number of decimal places in the final answer is equal to that of the term with the least decimal places
In the given examples:
1) 0.09 - has 2 decimal places
1.324- has 3 decimal places
Sum = 0.09 + 1.324 = 1.414
Round off to 2 decimal places = 1.41
2) 41.0 - has 1 decimal place
78.3- has 1 decimal place
Sum = 41.0 + 78.3 = 119.3
Final answer will also have 1 decimal place = 119.3
1. 1.141
2. 119.3
HOPE THIS HELPS.
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Answer:
4 pairs are needed for the bonds, leaving 1 lone pair. Each double bond uses 2 bond pairs and can be thought of as a single unit. There are 2 double bond units and 1 lone pair, which will try to get as far apart as possible - taking up a trigonal planar arrangement.
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Answer : The volume of calcium hydroxide is, 32.89 ml
Explanation :
Using neutralization law,
where,
= basicity of an acid = 1
= acidity of a base = 2
= concentration of hydrobromic acid = 0.389 M
= concentration of calcium hydroxide = 0.0887 M
= volume of hydrobromic acid = 15 ml
= volume of calcium hydroxide = ?
Now put all the given values in the above law, we get the volume of calcium hydroxide.
Therefore, the volume of calcium hydroxide is, 32.89 ml
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Answer:
Explanation:
Fossil fuels are fuels that are formed by naturally processes leading to the formation of crude oil, coal and natural gas.
Scientists and engineers have used the energy from these fossil fuels to benefit the society by converting these fuels into consumable products for engines which are used for various daily life routine, such as transport (as in the case of the combustible engines in cars, trains, airplanes and ships), power generation (as in the case of gas turbines for power generation, petroleum or diesel for the engines of power generators) and even for home use in food processing (as in the case of cooking gas).
The chemical reaction mostly involved in this process especially in the case of engines is combustion reaction. Combustion reaction is an exothermic reaction in which an organic substance is burnt in excess oxygen to produce carbon dioxide. The energy conserved in this reaction (combustion reaction) is from stored potential energy (in the form of chemical energy) to thermal energy (which is the heat released when the hydrocarbon is burnt).
As mentioned earlier, one of the methods of using fossil fuels for energy is it's use in power generation by power generating sets (generators) and gas turbines. One advantage of using fossil fuel products for power generation is that it is cheaper than it's alternatives (such as solar power generation). However, one disadvantage of using fossil fuel products for power generation is that they release toxic gases/chemicals (such as carbon monoxide, CO, nitrogen oxides, NO and NO₂) into the atmosphere.
Final answer:
The energy in fossil fuels is harnessed and used mostly through the process of combustion which provides a high energy output but contributes negatively to the environment by increasing carbon dioxide levels.
Explanation:
Scientists and engineers harness and use energy in fossil fuels like coal, petroleum, and natural gas to benefit society in a number of ways, primarily through combustion. The combustion process is a chemical reaction whereby energy is released by burning these fuels amidst oxygen. This results in heat and energy, which is then converted to electricity and used for transportation, industrial production, and home heating purposes.
A common method is to burn these fuels, which in turn powers steam-driven turbines to produce electricity. The energy from the combustion of the fuels is transferred into mechanical work which is then converted into electrical energy. This process points to the principal of energy conservation which states that energy is neither created nor destroyed, but merely transformed from one form to another.
This method, however, has its pros and cons. On the positive side, fossil fuels are comparatively easy to extract, abundant, and provide a high energy output. But on the flip side, burning fossil fuels leads to environmental degradation by releasing carbon dioxide and contributing to global warming. Also, these fuels are non-renewable, and the resources are limited.
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Which organism gains energy from eating the frog?
Which organism has the most available energy in this food chain?
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Answer:
grass
snake
grass
Explanation:
just did it :)
But, the producers should be on the bottom of the food chain, likely grass or something of the sort (plants)
If the frog has a line pointing to another organism, then that’s the organism that gains energy from eating it