How are isotopes defined
Answers
Answer:
C) Forms of the same element that differ in the number of neutrons in each atom.
Explanation: Edge 2020
Related Questions
Select the reagent for the following reaction. ? methyl butyrate N-methylbutyramide Acid halide Anhydride Ester Amide Alcohol Amine Carboxylic acid or carboxylate (the conjugate base of carboxylic acid)
What mass of a 60.0-gram sample of N-16 will remain unchanged after 28.8 seconds?
Mohs Scale of Mineral Hardness Hardness Mineral Absolute Hardness 1 Talc 1 2 Gypsum 2 3 Calcite 9 4 Fluorite 21 5 Apatite 48 7 Quartz 100 8 Topaz 200 According to the Moh's Scale of Mineral Hardness, the sample mineral that will scratch gypsum but not apatite is MOST LIKELY A) calcite. B) quartz. C) talc. D) topaz.
1. Plants use energy from sunlight, water, and carbon dioxide to produce 10 pointssugar. Which structure is found only in plant cells and helps plants captureenergy from sunlight?A. VacuoleB. NucleusC. ChloroplastD. Cell Membrane
Answers
Answer : The correct option is, (2) 10 g of water at 55°C
Explanation :
Average kinetic energy of the gas particle is directly proportional to the temperature of the gas particle.
Formula used :
where,
R = Gas constant
T = temperature
= Avogadro's number
From this we conclude that the kinetic energy is directly proportional to the temperature where 'R' and are constant. That means kinetic energy depends only on the temperature not on the mass.
(Higher the temperature, higher will be the kinetic energy)
Hence, the average kinetic energy of water molecules is greatest in 10 g of water at 55°C.
Final answer:
The sample with the highest average kinetic energy of water molecules is (2) 10 g of water at 55°C.
Explanation:
Kinetic energy is a fundamental concept in physics that describes the energy an object possesses due to its motion. It depends on both an object's mass and its velocity. Objects in motion have kinetic energy, and the faster they move or the more massive they are, the greater their kinetic energy. This energy can be transferred or transformed but is always conserved in a closed system.
The average kinetic energy of water molecules depends on the temperature of the water. The higher the temperature, the greater the average kinetic energy. In this case, the sample with the highest average kinetic energy would be (2) 10 g of water at 55°C. This sample has a higher temperature than the other options, therefore, the water molecules in this sample have the highest average kinetic energy.
Learn more about Average kinetic energy of water molecules here:
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b. .78 M
c. 3.85 M
b. 4.98 M
Answers
Answer:
The correct answer is c.
Explanation:
First, look for the same problem to verify that the correct volume is 0.702 L.
Now we must calculate the amount of glucose moles (n) in the 500g:
n =
n = 2,7 mol
Molarity is given by moles of compound per liter. In this way, we calculate the molarity (M) as:
M =
M =
Have a nice day!
500 / 180.16 => 2.775 moles
Volume = 0.72 L
M = n / V
M = 2.775 / 0.72
M = 3.85 M
hope this helps!
Electrons orbit slowly around the atom.
Electrons travel in one flat path around the nucleus of an atom.
Electrons are traveling so fast that it is impossible to know their exact locations.
Answers
According to the atomic model given by Rutherford, the atom is a dense, and tiny positively charged core known as the nucleus, which is enveloped by lighter and negatively charged electrons. An electron refers to a stable subatomic particle comprising a negative charge, which is found in all the atoms.
The following are the correct statements:
1. The electrons are situated in orbits or shells around the atom.
2. The electrons are traveling so fast, that it becomes almost impossible to locate their precise locations.
2 is definitely false
3 is also completely false because
4 is true.
So 1&4
(2) NaOH(aq) + HCl(aq) -->NaCl(aq) + H2O(l) + heat
(3) H2O(l) + heat --> H2O(g)
(4) H2O(l) + HCl(g) -->H3O+(aq) + Cl-(aq) + heat
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The equation where the term heat represents the heat of fusion is NaCl(s) + heat -->NaCl(l).
The heat of fusion is the heat required to break the intermolecular interactions in a solid as it is converted to the liquid. Hence, the process of fusion is the process of converting a solid into a liquid.
Examining the equations shown in the options closely, we will discover that in the equation; NaCl(s) + heat -->NaCl(l), heat is supplied to sodium chloride solid and it is converted to liquid. The heat involved in this process is the heat of fusion.
Learn more: brainly.com/question/24775418
Answer:
The answer is 1
Explanation:
FALSE
Answers
formation of clouds
metal corroding in salt water
sugar dissolving in water
separating salt from seawater
Answers
Answer: C. metal corroding in salt water
Explanation: