Of the following statements, which is FALSE? Liquids and gases both take on the shape of their container. The space between particles (atoms, molecules, ions) in gases is larger than for liquids and solids. Solids do not take up either the volume nor the shape of their container. O Liquids and gases both take up the volume of their container.
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- why is the cp of solids lower than that of liquidsIn addition to solid, liquid, and gas, we also have plasma. Plasma, the "fourth state," is characterized by lack of shape, and it cannot be classified as gas, liquid, or solid. Examples of plasma are plasma ball and the contents of a fluorescent bulb. The fifth state has already been discovered by scientists. It is called Bose-Einstein Condensate (BEC), but in Grade 3, the focus of study is only on the three states of matter: solids, liquids, and gases. Let us have some exercises on grouping of matter. Grouping Solid Materials escruc Can you classify/group the following solid materials.according to their characteristics? Put your answers in the second column of the chart. Inev spoon -#-S-m. steel chair - H- rubber band E-m garter -M-E table E-H electric drill-H rig soft rock - pencil B- plastic glass -H-B blon pin - H eraser E-B clay pot - M-B Solid Materials Properties PinPencil. Fubber bands Hardness Brittleness Elasticity Malleability Strength Grouping Solids, Liquids, and Gases…There are two solutions with different pH levels. Solution A is neutral, with a pH of 7. Solution B is slightly alkaline, with a pH above 7. Two beakers are filled with of each solution (one for each solution). A phosphate buffer was added to it and CO2 was blown into it until there was a change of color meaning a change in pH. (this experiment is to see how the CO2 from the lungs can cause a pH change in water) Why does it take so long for the solutions to change color? Relate your answer to the equation (H2O + CO2 ⇌ H2CO3 ⇌ HCO3- + H+ ) and to the presence of the buffer.
- Solidification is the process of changing the state of the material from .. powder to solid liquid to solid. solid to liquid. solid to solid none of the above OO 0ooboA chemist reported that carbon dioxide gas at −78 °C was kept in the laboratory. Which property of the gas did the chemist report? Length Mass Temperature or VolumeAt the hospital, a patient often receives fluids via an intravenous (IV) infusion. A bag of the fluid is held at a fixed height above the patient’s body. The fluid then travels down a large-diameter, flexible tube to a catheter—a short tube with a small diameter— inserted into the patient’s vein. 1.0 L of saline solution, with a density of 1020 kg/m3 and a viscosity of 1.1 × 10-3 Pa ⋅ s, is to be infused into a patient in 8.0 h. The catheter is 30 mm long and has an inner diameter of 0.30 mm. The pressure in the patient’s vein is 10 mm Hg. How high above the patient should the bag be positioned to get the desired flow rate?
- Which substance is a molecule rather than an element? hydrogen carbon dioxide phosphorous alumínumIf an argon atom is neutral, it contains 18 protons and it also contains 18 electrons. O True FalseAt room temperature, substance 1 is a gas while substance 2 is a liquid. Which of the following is correct? - 2 has a higher molar mass than 1 - At STP, they will be solid - 2 has a larger mass than 1 - 1 has a higher boiling point
- hich causes most of the substances in petroleum to change from a liquid state to a gas state. 2020 Green Ninja 1 Name Class Date Any remaining liquid is collected at the bottom of the column. As the gases move up the column, the temperature decreases, causing the gases to into liquids. The different liquids are separated out at each level. Large, heavy components, such as asphalt, have high boiling points and separate out at °C. Kerosene is a medium-sized component and separates out at °C. Propane is a small component with a low boiling point and separates out at °C. The Story: Write a story about three hydrocarbons: a very small hydrocarbon called propane, a medium-sized hydrocarbon called kerosene, and a very large hydrocarbon called asphalt. In the story, describe: Si K SAMSUNG & 96Collectively, C, H, O, and N comprise approximately what percent of all elements in the body? O about 96% around 16% Ⓒ 100% O approximately 46%Which of the following statements about pH is (are) true: pH is a measure of free hydrogen ion concentration none of these are true both of these are true An increase in hydrogen ion concentration means a decrease in pH scale units