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What is the name given to reactions which take in heat?
An endothermal (or endothermic) process is the name of the process in which heat is taken in. In an exothermal (or exothermic) process, heat is released.
What are two types of qualitative observations in chemistry?
Two types of qualitative observations in chemistry are color changes and precipitate formation. These observations do not involve numerical measurements but rely on characteristics such as color or appearance. They are useful in indicating chemical reactions or changes in a substance.
Is it true that lavoisier transformed science by making its focus on taking measurements instead of making observations?
Yes, Antoine Lavoisier did revolutionize science by emphasizing the importance of quantitative measurements in chemical reactions. He is considered the father of modern chemistry for his role in developing the law of conservation of mass and the metric system. While observations were still important, Lavoisier's emphasis on precise measurements laid the foundation for the scientific method as we know it today.
How did Lavoisier use the scientific method?
Lavoisier applied the scientific method by conducting systematic experiments, making detailed observations, and analyzing data to develop theories and explanations for chemical reactions. He emphasized the importance of precise measurements and reproducibility in his work, which laid the foundation for modern chemistry.
What name is given to all chemical reactions which releases heat energy?
Exothermic reactions produce heat. Endothermic reactions take in heat from the surrounding area and get cold.
Is the reaction to aluminum in the hendenburg exothermic or indothermic?
indothermic
What is the name given to reactions which take in heat?
An endothermal (or endothermic) process is the name of the process in which heat is taken in. In an exothermal (or exothermic) process, heat is released.
Observations of macaques or snow monkeys by Japanese scientists in the 1950s added to evidence that?
controlled nuclear reactions of helium
What are two types of qualitative observations in chemistry?
Two types of qualitative observations in chemistry are color changes and precipitate formation. These observations do not involve numerical measurements but rely on characteristics such as color or appearance. They are useful in indicating chemical reactions or changes in a substance.
What observations give evidence that a chemical reactions has happened?
is the colour change, tempeture change ,gas produced the most common ones
What are some examples of an experiment?
Experiment can be scientific or psychological. They can use samples and observations to gain insight or mix chemicals together to demonstrate reactions.
What do you use to help you make observations during a scientific experiment?
Use a pen and paper, observe the reactions in the experiement and record it in minor ditails.
How long do gel packs stay cold?
There's an ampule inside them. Bend until you can hear the ampule break, then shake them to start the chemical indothermic reaction.
Why kinds of scientific investigations in involve making observations?
Scientific investigations often involve making observations to gather data, formulate hypotheses, and test predictions. Observations can be qualitative, such as noting behaviors or characteristics, or quantitative, involving measurements and numerical data. These observations are crucial in fields like ecology, where researchers might study animal behavior in natural habitats, or in chemistry, where they observe reactions in experiments. Ultimately, observations help scientists understand phenomena and draw conclusions based on evidence.
How are chemical reactions described?
Chemical reactions are described based on observations. It may be in terms of changes in color, state of matter, or density.
How many candle observations did Michael Faraday make?
Michael Faraday conducted approximately 200 experiments related to candle observations, primarily focusing on the combustion process and the nature of gases produced during burning. His work laid the foundation for understanding chemical reactions and the principles of combustion. Faraday's meticulous observations contributed significantly to the field of chemistry.
What does Observations and measurements recorded during an experiment is mean?
Observations and measurements recorded during an experiment refer to the systematic collection of data that captures the outcomes and behaviors of the variables being studied. These records can include qualitative observations, such as color changes or physical reactions, as well as quantitative measurements, such as temperature, mass, or volume. This data is essential for analyzing results, drawing conclusions, and validating hypotheses in scientific research. Accurate documentation of these observations allows for reproducibility and further investigation.
