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All atoms of the element potassium have 19 protons. One of the most stable types of potassium atoms has the mass number 39. How many neutrons make up one of these potassium atoms? -19 -20 -38 -58

The unknown of this problem is the experimental percent of water in the compound in order to remove the water of hydrogen, given the following: Mass of crucible, cover and contents before heating                               23.54 gMass …

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Which statement correctly compares the pH of water to that of other substances? a: The pH of water increases as its temperature increases, while other substances have a stable pH. b: The pH of water is neutral; it is higher than the pH of acids and lower than pH of bases c: Water contains more hydrogen ions than most other substances, giving it a higher pH. d: Water is neutral and has a pH of 0; acids have a pH greater than 0 and bases have a pH less than 0

In tropical rain forest, the animals will have to deal with higher temperatures and greater rainfall. One example of an adaptation they might need is a thin, water-proof coat. This will prevent heat from becoming trapped inside their fur/hair/feathers, and the water-absorbing coating will allow water to stick to the …

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Which explains why an activated complex is a high-energy species? activated complexes form during endothermic reactions. activated complexes require new bonds to be made. activated complexes are stable species with strong covalent bonds. activated complexes cannot be formed in the reverse reaction direction?

There are two systems in the human body that are responsible for the coordination between the functions of different systems to achieve the unity of the living organism’s body. These two systems are the nervous system and the endocrine system. The action of the nervous system is fast and takes …

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According to the chart, from 1976-1986, unintentional drug overdose deaths per 100,000 population stayed relatively stable. The numbers for each year are, roughly, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2. What is the mean of these statistics?

Answer – 1. Social Environment 2. Physical Environment3. Individual LifeStyle 4. Differential Susceptibilities 5. Perception of Healthcare and to gain access/services6. Reverse Causality Reasoning – Under these or all points to underlying of illness to economic problems and depressions. 

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First answer gets Brainliest! What message meant that the United States was not interested in acquiring more territory but wanted to see neighboring countries stable, orderly, and prosperous? A) Canal Zone B) Big Stick C) Roosevelt Corollary D) Monroe Doctrine

Answer: What message meant that the United States was not interested in acquiring more territory but wanted to see neighboring countries stable, orderly, and prosperous?   A)    Canal Zone B)    Big Stick C)    Roosevelt Corollary D)    Monroe Doctrine Explanation: C, Roosevelt Corollary meant that the United …

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What is one way that the post-war reform movements in the British and French colonies might be different if they occurred today? Organizers would make use of social media, such as Facebook, to organize and unify. The movements would be struck down more violently because the British and French governments are more powerful. Reformers would not have demanded change because British and French economies are more stable. Fewer people around the world would be aware of the reformers and their calls for change.

The Reformation actually started after Columbus’s landing in North America.  Treaty of Tordesillas in 1494 was forced on Spain and Portugal by the Pope. The Pope basically said that all lands in the New World belonged to Spain and all new non-Christian lands in the Eastern Hemisphere belong to Portugal. …

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Earth’s climate ________. select one: a. has been stable over the history of the planet b. is changing as a result of natural and human processes c. will stabilize over the next century, according to the predictions of most scientists d. has changed only once due to the evolution of green photosynthesizing plants e. history is undeterminable because there is no method of studying climatic history of the planet

Natural Forces Affecting the Driver:1. While the car stops, the person continues moving the way that the car were moving and then hits the obstacle in the car or the person can be thrown out of the vehicle. If the person wears belt, he will stop moving with the vehicle …

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According to Maslow, which need are people striving to satisfy when they seek stable places to live and work?

Answer:    Joshua is correct Explanation:  Animals, however well preserved and bred in conditions that are not in nature, that is, not in their natural habitat, animals still retain the animal instinct. Thus, young animals in the wild can be met daily, except for members of their species, and members …

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Arms that are longer than legs, and a short stable lumbar spine are traits associated with a. full-time bipedalism b. brachiation c. arboreal quadrupedalism d. vertical clinging and leaping

Answer: The correct option is 1. Step-by-step explanation: It is given that Inez has to pay 4 percent in closing costs and 16 percent for the down payment on a purchase of $225,500 with an ARM. So, Inez has to pay 20% of $225,500. Therefore Inez has to pay $45100 …

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In general, being more emotionally stable and mature is a characteristic of which stage of adulthood? A. childhood B. young adulthood C. middle adulthood D. older adulthood

1. The answer is “C”. “Identical twins” who have been raised apart are typically more similar in intelligence level than biological siblings raised together because they have been born with the same genetic code. Identical twins originate from a single fertilized egg that parts into two. Before it parts, it …

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What type of thinking spread during the Renaissance and Reformation periods? a. The ideas of early writers were disregarded. b. Less attention was given to literature and the arts. c. The Catholic Church was considered stable and trustworthy. d. Greater value was placed on individual accomplishments.

What type of thinking spread during the Renaissance and Reformation periods? a. The ideas of early writers were disregarded. b. Less attention was given to literature and the arts. c. The Catholic Church was considered stable and trustworthy. d. Greater value was placed on individual accomplishments.

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How many electrons do the elements of the most stable group have in their outer energy levels

I think you mean the energy of a particle attached to a spring. In that case the total energy is given by E=K+P=12mv2+12kx2E=K+P=12mv2+12kx2Where mm is the mass of the particle, vv is the velocity of the particle, and xx is the distance of the particle from the origin. So, the maximum of potential energy PP is given when …

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Which of these Roman developments resulted in the ability to build larger and more stable structures? A) aqueduct B) arch C) columns D) stairs

The subject of civil wars in the African continent, especially as product of the unbriddled and uncontrolled desire to extract from this land its rich mineral resources, has gone on for decades, and even centuries. But among the many conflicts around this subdeveloped continent, lays the one that originated in …

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Which symbol represents an atom in the ground state with the most stable valence electron figuration

The fomula is NH4 (1+) There are only two elements N and H. As per oxidation state rules, the most electronegative element will have a negative oxidation state and the other element will have a positive oxidation state. N is more electronative than H, so H will have a positive …

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In the gas phase, the energy difference between a cesium atom and its most stable ion is referred to as

Answer: 1) The correct answer is option A. 2) The correct answer is option B. 3) The correct answer is option C. 4) The correct answer is option C. Explanation: Alpha Decay, a heavier nuclei decays into lighter nuclei by releasing alpha particle. The mass number is reduced by 4 …

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Why nucleus is stable? – AnswersMine

Binding energy for a single nucleus is  . Further Explanation: The smallest particle that is the building block of matter is known as an atom. Most of the space in an atom is empty and its mass is concentrated inside a small region called the nucleus. Protons, electrons, and neutrons …

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Which of the following can be accurately said about climax communities? A. Climax communities are always stable. B. Restoration of the original climax community may not always happen. C. Restoration of the original climax community is always achieved at the same rate. D. Climax communities are always uniform.

Answer: D) harmless plant proteins   Pollen is a male gamete, which is produced by the flowers in order to conduct fertilization of female gamete or ovule. The pollen contains proteins which acts as an antigen. When these proteins or antigens are inhaled by the living organisms like humans it …

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The Subject is actually Economics. How were ways in which colonial Americans conducted business? In order to establish a stable currency, what dud the Constitution give Congress the power to do?

What action did President Polk take that resulted in the war between the United States and Mexico? He sent General Zachary Taylor to claim an area of disputed land for the United States. Since 1809 the US was, through deals and purchases, trying to expand its own territory; having a …

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