If cricket balls represent oxygen atoms, how many of them should be found in our swimming pool? (oxygen concentration in silicon is 15 ppma)
we can say swimming pool is Olympic size
If cricket balls represent oxygen atoms, how many of them should be found in our swimming...
2.1 moles of oxygen atoms represent how many molecules
how many atoms can be found in a mole of mercury How many atoms can be found in a mole of mercury? 6.02 x 102 atoms 201 atoms 121 x 10 atoms
1) How many oxygen atoms are there in 296.0 g of Cr(PO4)2 2) ? a) b) 7. How many Oxygen atoms are there in 29 gen atoms are there in 296.0 g of Cr(PO4)2 ? show work (6 pts) consider the following balanced chemical equation when answering the following questions: 2 Cs3PO3 + 3 BaBr2 ------ ----→ 6 CsBr + Ba3(PO3)2 a) How many mols of CsBr should be produced if 8.68 g of BaBr2 are used in the reaction?...
Yellow-green spheres represent fluorine atoms and red spheres represent oxygen atoms, and all the molecules are gases. Reactants Actual products Part A Write a balanced equation for the reaction. Express your answer as a chemical equation. Identify all of the phases in your answer. = AE O 2 ? Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining Part B Identify the limiting reactant. Express your answer as a chemical formula. AD A 2 ? Part C...
Question 5: In Physics, there are many vector quantities. In general, how do we represent them Symbolic representation: A letter with an arrow on its top, like using š to represent position vector. Then the displacement vector from position $to position š2 can be represent as š2 -$AS Pictorial representation: An arrow to represent its magnitude and direction: The longer length represents greater magnitude and the arrow head represents the direction Now could you please in the picture below using...
How many total atoms does each of the following expressions, extracted from balanced chemical equations, represent? a. 2SO3 b. 4N,H с. ЗН,РО, d. 6Al(OH) 6-45 6-53 After the following chemical equation was balanced. the name of one of the reactants was substituted for its formula. 2 butyne + 1102 8CO2+6H20 Using only the information found within the chemical equation, determine the molecular formula of butyne. 6-55 The following diagrams represent the reaction of A2 (red spheres) with B, (blue spheres)...
If we have C3H8 + 5O2 ---> 3CO2 + 4H2O a) How many liters of oxygen gas are required to react with 7.2 L of C3H8 if both gasses are at STP? b) How many grams of CO2 will be produced from 35 L C3H8 at 15 C and 1.65 atm? c) How many grams of water vapor can be produced when 15 L C3H8 at 15 C and 1.65 atm are reacted with 15 L O2 at -20.0 C...
A sample of 50 individuals are surveyed, and it is found that 10 of them regularly take zinc supplements. How many individuals should we survey so that, with 94% confidence, the true proportion taking zinc can be estimated to within 3 percentage points? (Note: 3 percentage points is 0.03 since we write a proportion as lying between 0 and 1.)
1. How many aluminium atoms are in an aluminium can with mass 162g? (RMM AI 26.98g, 1 mole = 6.022 x 1023 atoms) 5. How much 0.125 M NaOH solution do we need to completely neutralize 0.225 L of 0.175 M HCl solution (15 marks)