Chemistry

calculate the mass of sodium sample that it contains 2 Na atoms of sodium please i need help with this ques.
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Write the chemical formulas and names for the following ionic compounds. Barium and phosphate
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7. Balance the following reaction under basic conditions: Al (s) + Cr2O72- (aq) -> Al3+ (aq) + Cr3+ (aq)8. What is the ^o of the following balanced redox reaction (use the reduction potentials provided in Table 11.1 below)?Fe3+ (aq) + Au (s) -> Fe (s) + Au3+ (aq)9. What is G for the reaction below calculate it from the ^o ?Fe (s) + Au3+ (aq) -> Fe3+ (aq) + Au (s)
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NEED ANSWER ASAP ! WILL BRAINLIST ! Cillian is a company that uses a particular kind of wood to manufacture its products. Suppose the economy is experiencing high demand for trees from which this wood is obtained. Which is a likely response to this rising demand?A. New distribution systems will be used to improve delivery of the wood to Cillian.B. The trees will be regulated to maintain the availability of the wood.C. New processes will be developed to locate the trees more efficiently.D. The wood will be used as quickly as possible.
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The metal which burns with a white dazzling flame is: a) silver b) magnesium c) gold d) aluminum
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The speed at which a chemical reaction proceeds is called
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mass is the gravitational pull on the earth-tru -falsplz help
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RNA is a double strand. True or False?
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What is the interaction between atmosphere and biosphere
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A student creates a hypothesis about their upcoming experiment. What must thestudent do in their experiment with relationship to their hypothesis?create a law based on the hypothesischange the experiment to make the hypothesis correctignore the hypothesismake observations to prove or disprove the hypothesis
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The very act of you observing somethingwill disturb the system is known as:
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Lithium has an atomic mass of 6.941 amu. Lithium has two isotopes. One isotopes has a mass of 6.015 amu with a relative abundance of 7.49%. What is the mass of the other isotopes?
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How can a redox reaction be identified?O A. Atoms have rearranged.O B. Protons have been transferred..OC. lons are present in solution.D. Oxidation states have changed.
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How many atoms are in 2 moles of oxygen?
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Dont understand this science Question.
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Which of the following methods of heat transfer causes the tectonic plates to move? Conduction Convection Evaporation Radiation
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How does a paper bag wrapped around a hot water bottle create convection?
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17) An ethanol solution has a concentration of 0.500M. What volume in liters of this solutionwould contain 8.0 moles of ethanol?
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How many grams of potassium sulphate are formed when 49g of sulphuric acid in solution are neutralised by potassium hydroxide?
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in a test trial, using 6% extra strength bleach at room temperature, 100.0 mL of oxygen gas was produced in 2.03 seconds. Calculate the average reaction rate for the oxygen gas.
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1. Atomic mass of 12 and 6 neutrons what is the atomic number?
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Do the ingredients changing into a cake in the oven a chemical reaction?
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