Hãy suy nghĩ và trả lời câu hỏi trước khi xem đáp án
- $BaO \xrightarrow{X} BaCO_3$: $BaO + 2HCl \rightarrow BaCl_2 + H_2O$; $BaCl_2 + Na_2CO_3 \rightarrow BaCO_3 + 2NaCl$ hoặc $BaO + H_2O \rightarrow Ba(OH)_2$; $Ba(OH)_2 + CO_2 \rightarrow BaCO_3 + H_2O$
- $BaCO_3 \xrightarrow{Y} BaCO_3$: $BaCO_3 + 2HCl \rightarrow BaCl_2 + H_2O + CO_2$; $BaCl_2 + Na_2CO_3 \rightarrow BaCO_3 + 2NaCl$ hoặc $BaCO_3 + CO_2 + H_2O \rightarrow Ba(HCO_3)_2$; $Ba(HCO_3)_2 \xrightarrow{t^o} BaCO_3 + CO_2 + H_2O$
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Quả cầu nhỏ mang điện tích 10-9 C đặt trong không khí. Cường độ điện trường tại 1 điểm cách quả cầu 5 cm là
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Cho hàm số \(f\left( x \right)\) liên tục trên \(\mathbb{R}\) và có đồ thị như hình vẽ dưới đây.
Điểm cực tiểu của đồ thị hàm số trên làNhiệm vụ của hệ thống truyền lực là:
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Hai dao động điều hòa có cùng pha dao động. Điều nào sau đây là đúng khi nói về li độ của chúng:
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, mặt phẳng đi qua điểm
nhận
làm một vecto pháp tuyến có phương trình là
Bước sóng là
Ứng dụng nào thuộc ứng dụng của GPS?
Mệnh đề nào dưới đây sai?
Nội dung nào sau đây là một trong những lí do cần thiết phải học tập lịch sử suốt đời?
Cho \({\rm{A = \{ }}x \in \mathbb{N},\,(2x - {x^2})(2{x^2} - 3x - 2) = 0\} \) và \({\rm{B = \{ n}} \in \mathbb{N},\,3 < {n^2} < 30\} \). Tìm kết quả phép toán \[{\rm{A}} \cap {\rm{B}}\].
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Cho hình chóp S.ABCD có đáy ABCD là hình vuông cạnh a, \(S A \perp(A B C D)\). Biết diện tích tam giác SBD bằng \(a^2\). Khi đó SA bằng:
Read the following passage about lifelong learning and mark the letter A, B, C, or D on your answer sheet to indicate the best answer to each of the following questions from 31 to 40.
[I] Lifelong learning is the ongoing, voluntary, and self-motivated pursuit of knowledge for personal or professional development (Knowles, 2020). [II] This concept emphasizes that learning does not stop after formal education, but rather continues throughout an individual's life, adapting to changing circumstances and needs. [III] In today’s fast-paced world, where technology and job markets evolve rapidly, lifelong learning has become increasingly essential. [IV]
One of the primary benefits of lifelong learning is its ability to enhance employability. Individuals who engage in continuous education are more likely to keep their skills relevant and competitive in the job market. According to a report by the World Economic Forum (2021), over 50% of employees will need reskilling due to technological advancements in the coming years. Lifelong learners are better equipped to adapt to these changes, making them more attractive candidates for employers.
Moreover, lifelong learning contributes to personal fulfillment and mental well-being. Engaging in new learning experiences can stimulate the brain, foster creativity, and improve cognitive function. Research indicates that individuals who pursue learning opportunities throughout their lives tend to report higher levels of happiness and life satisfaction (Smith & Johnson, 2019). Whether it is taking a course, learning a new language, or picking up a new hobby, the process of acquiring knowledge can be enriching and enjoyable.
In addition, lifelong learning promotes social engagement and community involvement. Participating in educational programs or community workshops can foster connections with others who share similar interests. This social aspect of learning can enhance one's sense of belonging and support networks, which are crucial for mental health (Jones, 2022).
Overall, lifelong learning is not just an individual responsibility; it requires support from educational institutions, employers, and communities to create an environment conducive to continuous education. By fostering a culture of learning, society can better prepare individuals for the challenges of the future and ensure that everyone has the opportunity to thrive.
Where in paragraph I does the following sentence best fit?
Lifelong learning encourages individuals to embrace new skills and knowledge throughout their lives.
Các phát biểu nào dưới đây là đúng khi nói về lipid?
Mark the letter A, B, C or D to indicate the sentence that is closest in meaning to each of the following questions.
He was successful in his career thanks to his parents’ support.
Đâu là ý đúng: Theo chức năng, người ta chia mạch điện tử điều khiển làm mấy loại?
Cấu trúc hệ thống kĩ thuật mạch kín và mạch hở khác nhau ở điểm nào?
Read the passage and mark the letter A, B, C or D to answer the following questions.
Volunteering offers many of the same social benefits, with the added bonus of helping others and developing useful skills to put on your CV. Plus, students are in a unique position to help, suggests Tom Fox. "They can take their enthusiasm and excitement for opportunities and share their passions, subject knowledge and experience with people." The idea of giving up time for nothing might seem impractical at first, especially once the pressures of study and coursework or exams begin to mount up. However, Michelle Wright, CEO of charity support organization Cause4, suggests seeing volunteering as a two-way street. "I think it is fine for undergraduates to approach volunteering as a symbiotic relationship where doing good is just one part of the motivation for reaching personal and professional goals."
Katerina Rudiger, head of skills and policy campaigns at the Chartered Institute of Personnel and Development (CIPD), says: "Volunteering can be a valuable way of gaining that experience, as well as building confidence, broadening your horizons, becoming a better team player and developing those all- important 'employability skills' such as communication and decision making." Amanda Haig, graduate HR manager, agrees that volunteering can help your employment prospects. "Volunteering can demonstrate positive personality traits and skill sets, such as proactivity, and teamwork," she says.
A positive side-effect of volunteering is improving your time at university by getting involved in the local community. Leaving the student bubble can make your time as an undergraduate much more varied. At Bath Spa University, more than 1,000 students volunteered over the past year, doing everything from working on local environmental projects to helping in schools or assisting the elderly. ”Quite often there can be a divide between students and permanent residents," says students' union president Amy Dawson, "but if students invest a little time now, they will be giving something back to the local community and will reap the benefits in the future."
“You might also find that volunteering helps your studies if you choose the right program. At Lancaster, volunteering is linked into academic modules in some cases", explains Fox. "This has multiple wins. Students get to apply their learning in the classroom and share their interests with children in local schools or community organizations, while schools gain skilled students with a passion for a subject that enthuses their pupils."Personality traits and skill sets include____________.