Electrically charged atoms or combinations of atoms are called ________.
Answers
Final answer:
Electrically charged atoms or combinations of atoms are called ions. They are formed when atoms gain or lose electrons, becoming negatively charged (anions) or positively charged (cations).
Explanation:
Electrically charged atoms or combinations of atoms are called ions. Atoms are normally neutral, having equal numbers of protons and electrons. When an atom gains or loses electrons, it becomes charged, transforming into an ion. A negatively charged ion, or one that has gained electrons, is known as an anion. A positively charged ion, or one that has lost electrons, is referred to as a cation. This is a fundamental concept in chemistry.
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Final answer:
Atoms that are electrically charged are called ions. They can be either positively charged or negatively charged, depending on whether they gain or lose electrons. Specifically, an atom that gains electrons becomes a negatively charged anion, while an atom that loses electrons becomes a positively charged cation.
Explanation:
Atoms are electrically neutral if they contain the same number of positively charged protons and negatively charged electrons. When the numbers of these subatomic particles are not equal, the atom is electrically charged and is called an ion. The charge of an atom is defined as follows:
Atomic charge = number of protons - number of electrons
An atom that gains one or more electrons will exhibit a negative charge and is called an anion. Positively charged atoms called cations are formed when an atom loses one or more electrons.
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Related Questions
Why is nonpoint source pollution potentially more harmful than point source pollution?a.Nonpoint source pollution disrupts the water cycle.b.Nonpoint source pollution is difficult to regulate.c.Nonpoint source pollution comes from more than one source.d.Nonpoint source pollution is more damaging to living organisms than point source pollution
What differentiates the isotopes of an element?
What did Thomson’s model of the atom include that Dalton’s model did not have?
When harmful bacteria invade a wound, the skin around the wound turns red. This is known as:
Answers
Answer:
1.31moles
Explanation:
Given parameters:
Mass of CuO₂ = 125g
Unknown:
Number of moles = ?
Solution:
To solve this problem, we use the expression below:
Number of moles =
Molar mass of CuO₂ = 63.6 + 2(16) = 95.6g/mol
So;
Number of moles = = 1.31moles
B. actually double.
C. remain the same, plus interest.
D. be two hundred dollars.
Answers
The answer choice is B) It should actually double.
Considering it's been in the bank so long, it would have increased because of interest rates.
Fructose and galactose
Answers
In Galactose, there are 6 carbon atoms.
Hope this helps :)
Answer:
the answer is starch
Explanation: i chose fructose but got it wrong and showed that starch is correct
a. True
b. False
Answers
1. Which of the following items represents a chemical change? burning melting evaporation freezing
Answer:
- Chemeical change: Burning
- Physical change: melting evaporation freezing
Explanation:
Chemical properties depend on composition while physical properties do not depend on composition. As in case of burning, composition changes due to this , this is chemical properties while freezing, melting and evaporating process, composition remain same, so these have physical properties, like water in liquid, ice and vapor state have same composition.
2. The physical properties of a compound are similar to those of its elements.
Answer:
- False
Explanation:
- The properties of compounds are often very different from the properties of the elements that make them. For example, water is made from two atoms of hydrogen bonded to one atom of oxygen. H2O have different physical properties than oxygen and hydrogen.
Final answer:
In the context of Chemistry, 'Burning' is a chemical change as it results in new substances. The claim that a compound's physical properties are similar to its elements is typically false as the properties often differ significantly, an example being the difference between water and its constituent elements hydrogen and oxygen.
Explanation:
The question falls under the field of Chemistry. It refers to the concept of chemical and physical changes in matter. A chemical change is a change in matter that results in the formation of one or more new substances with new properties. On the contrary, a physical change relates to a change in the state of matter without any change in its chemical composition. Out of the options given, the process of 'Burning' symbolizes a chemical change as it results in the formation of new substances such as carbon dioxide, water vapor, etc.
As for the second part of your question, the statement that 'physical properties of a compound are similar to those of its elements' is generally false. The properties of a compound often differ greatly from those of the constituent elements. One classic example is that of water (H2O). Water is a liquid at room temperature, quenches thirst, and is essential for life. However, its constituent elements - Hydrogen and Oxygen - are both gases and do not possess these characteristics.
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Answers
To solve this we must be knowing each and every concept related to direct relationship. Therefore, the value for each of the given points can be given as below.
What is direct relationship?
The relationship between the two supplied quantities can be used to construct one of two forms of proportionality. Direct proportion as well as inverse proportion are those. In mathematics, a direct proportion is indeed a comparison of two integers in which the ratio of both numbers equals a fixed amount.
According to the concept of proportion, two ratios are in proportion when they are equal. When an increase or reduction in one quantity causes an equivalent rise or fall in the other, the two quantities are said to be directly proportional.
Mathematically,
The x and y are directly related
k=8
x=0.5, y=4
x=1, y=8
x=2, y=16
x=3, y=2
Therefore, the value for each of the given points can be given as above.
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B) Cl < Cr < Ce
C) Ce < Cl < Co
D) Ca < Cu < Cl