Chemistry

How many liters are in 4.5 moles of CO2 gas at STP? Pls help :)
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Avogradro's number is the number of particles in one gram of carbon- 12 atom true or false?
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convert the following into Kelvin scale 253c
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Need help with this
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Why is bromine more electronegative than iodine?
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For the following acids of varying concentrations, which are titrated with 0.50 M NaOH, rank the acids in order of least to most volume of base needed to completely neutralize the acid.a. 0.2M H2C6H5O7b. 0.2M H2C2O4
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A sample of oxygen occupied 621 mL when the pressure increased to 1095.93mm Hg. At constant temperature, what volume did the gas initially occupy when the pressure was 774.29mm Hg?a.) 879.0b.) 438.7c.) 890.2d.) 1366
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hii pls help me to balance the equation and state the symbols thanksss
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PLZ HELP What is an electron? O A. A positively charged particle B. An element on the periodic table C. A negatively charged particle D. A particle found in the nucleus SUBMIT
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A person slips over banana pills. Give reason
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hii pls help me to balance the equation thanksss
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Which of the following ligands is not capable of exhibiting linkage isomerism?a. NCO-b. -OH c. -CN d. -SCN
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When a leaf of fresh sage or mint is rubbed ,the fragrance isimmediately obvious. Write a theoretical explanation for this observation
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When a solid dissolves in a liquid, it is termed
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Determine the effect each given mutation would have on the rate of glycolysis in muscle cells. a. loss of binding site for fructose 1 ,6-bisphophate in pyruvate kinase. b. loss of allosteric binding site for ATP in pyruvate kinase. c. loss of allosteric binding site for AMP in phosphofructokinase. d. loss of regulatory binding site for ATP in phosphofructokinase. 1. Increase2. decrease3. No effect
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balance equation of potassium sulphate+ water
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state the modern periodic law
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Spell out the full name of the compound.
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Many important analgesic compounds are derived from simple aromatic starting materials.a. Trueb. False
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Isotopes are atoms that have the same mass number, but different numbers.atomic. True or false
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Please help :)A chocolate chip cookie recipe calls for 0.050 moles of baking soda (NaHCO3). How many grams should the chef mass out?
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For an atoms electrons, how many energy sublevels are present in the principal energy level n = 4?A. 4B. 9C. 10D. 16E. 32
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Aqueous hydrobromic acid HBr will react with solid sodium hydroxide NaOH to produce aqueous sodium bromide NaBr and liquid water H2O. Suppose 55.8 g of hydrobromic acid is mixed with 17. g of sodium hydroxide. Calculate the minimum mass of hydrobromic acid that could be left over by the chemical reaction. Round your answer to 2 significant digits.
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Describe the principle and process for the manufractured of sulphuric acid witha a well labeled diagram by contact process.
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