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282.506  Articles
1 of 28.252 pages  |  10  records  |  more records»
The subject matter of acids and bases in the chemistry learning syllabus for class XI IPA is KD 3.10 and KD 4.10. In reality, many teachers do not carry out KD 4.10 activities for various reasons, especially the limited tools, and materials in the laborat... see more

The research aimed to determine whether or not there is an acid-base misconception using a three-tier multiple choice and the effectiveness of using DSLM in reducing these misconceptions. The research design is descriptive qualitative research with a case... see more

Biodiesel is a renewable energy source that can be produced through esterification as well as transesterification reactions. This work presents a series of zirconia catalysts synthesized by hydrothermal method on various concentrations in acidic (H2SO4 0.... see more

The purpose of this study was to develop lecturing materials based on scientific inquiry-based in lecture and investigate the effects of the developed lecturing materials on students’ scientific knowledge of Acid-base Chemistry. The study involved 54 firs... see more

This study aimed to comprehend the quality of critical thinking questions and measure the critical thinking ability in the daily life acid-base topic of 2nd -students from six public high schools, six private high schools, and combination of them in Yogya... see more

This study aimed to develop and validate Scientific Argumentation Skills Test (SAST) and investigate the 11th-grade students' performance in scientific argumentation skills on acid-base chemistry. The research design used was research and development, fol... see more

This study aims to produce SETS-based teaching materials in acid-base concept that can foster students' critical thinking skills and establish their morale. This study is Research and Development (R & D) refers to the Borg and Gall model, which has been m... see more

Methodics of identification of salicylic acid and lactic acid combined with cream of chemical tests are offered. Designed methodics of quantitative determination of salicylic acid in cream by means of method of reverse bromatometry and amount of component... see more

Aim. To study the acid-base properties of derivatives of 2-(benzoylamino)(1-R-2-oxoindolin-3-ylidene)acetic acid substituted by the location 1 of oxoindolin fragment.Results and discussion. The compounds studied are weak acids, their strength decreases wi... see more

1 of 28.252 pages  |  10  records  |  more records»