Chemistry

Chemistry, 29.09.2019 00:10, joejoefofana

Jelena is studying the properties of water. she finds that a sample of 100 ml of distilled water boils at 100°c and has a density of 1 g/cm3. what will jelena most likely find to be true about a

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Physics, 25.06.2019 06:10, punani

Sort the sentences based on whether they are correct or incorrect. water boils at a temperature below 100°c at higher altitudes. water expands on freezing. water contracts on freezing. water boils at a temperature below 100°c in a pressure cooker. the density of water decreases on freezing. water boils at 100°c under normal pressure.

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Chemistry, 08.07.2019 06:00, jmarie87

Jesse was viewing two water samples. once beaker was filled with 250 ml of distilled water and the other beaker was filled with 250 ml of tap water. upon viewing the two using an electron microscope, he noted that the tap water had different elements present in addition to h2o molecules, whereas the distilled water had only h2o molecules. which conclusion below could jesse write based on his observations? question 12 options: tap water is a mixture, as it is made of different particles that keep their own chemical properties. distilled water is a mixture made up of hydrogen and oxygen atoms. tap water is a pure substance that consists of different elements bonded together, therefore it is a compound. distilled water is also a pure substance with different elements bonded together, making it a compound. tap water is a mixture that consists of different molecules that are not bonded together and maintain their own chemical properties. distilled water is a pure substance that consists of only one type of compound. tap water is a mixture that consists of different molecules that are not bonded together and maintain their own chemical properties. distilled water is a pure substance that is made up of one type of molecule, making it an element.

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Physics, 08.07.2019 10:00, rojina83

Jesse was viewing two water samples. once beaker was filled with 250 ml of distilled water and the other beaker was filled with 250 ml of tap water. upon viewing the two using an electron microscope, he noted that the tap water had different elements present in addition to h2o molecules, whereas the distilled water had only h2o molecules. which conclusion below could jesse write based on his observations? question 12 options: tap water is a mixture, as it is made of different particles that keep their own chemical properties. distilled water is a mixture made up of hydrogen and oxygen atoms. tap water is a mixture that consists of different molecules that are not bonded together and maintain their own chemical properties. distilled water is a pure substance that is made up of one type of molecule, making it an element. tap water is a pure substance that consists of different elements bonded together, therefore it is a compound. distilled water is also a pure substance with different elements bonded together, making it a compound. tap water is a mixture that consists of different molecules that are not bonded together and maintain their own chemical properties. distilled water is a pure substance that consists of only one type of compound.

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Chemistry, 21.08.2019 21:30, live4dramaoy0yf9

Ou have a 5 ml sample of a protein in 0.5 m nacl. you place the protein/salt sample inside dialysis tubing (see fig. 2-14) and place the bag in a large beaker of distilled water. if your goal is to remove as much nacl from the sample as possible, which would be more effective: (1) placing the dialysis bag in 4 l of distilled wa- ter for 12 h, or (2) placing the bag in 1 l of distilled water for 6 h and then in another 1 l of fresh distilled water for another 6 h

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