Reacting masses - Study guides, Class notes & Summaries

Quantitative chemistry The sum of atomic mass (Ar) values in a molecule is the molecular mass (Mr) Avogadro's constant gives the number of particles in one mole of a substance: Number of particles = Avogadro's constant x number of moles One mole of a substance has a mass (in grams) equal to the Ar or Mr. Mole = mass x Mr The percentage composition of a particular element in a molecule can be calculated by dividing the Ar of the element by the total Mr of the molecule. The empirical formul...

chemical reaction the process by which one or more substances change to produce one or more different substances Stoichiometry The calculation of quantities in chemical reactions QQR method (Quantity, quantity, ratio) is the link between maths and science. The ratio of calculation/measurement = the 1st quantity DIVIDED BY the 2nd quantity. Density mass/volume quantitiative results reported in NUMBERS data can be counted and analyzed by descriptive or inferential statistics Qualititive...

HESI A2 CHEMISTRY WITH 100% CORRECT QUESTIONS AND ANSWERS The breaking of bonds and the reforming of new bonds to create new chemical compounds with different chemical forumulas and different chemical properties. - ANSWER-Chemical Reaction syntehesis, decomposition, combusion, single replacement, double replacement - ANSWER-Five main types of chemical reactions. Two elements combine to form a product. - ANSWER-Syntehsis Reaction The breaking of a compound into component parts. ...

Experiment for Diffusion? - correct answer 1) HCl placed at one end of the test tube, ammonia solution at the other. 2) Where they meet, a ring of Ammonium Chloride appears. 3) The diagram shows that the ammonia is closer to the ring, showing that ammonia must have travelled faster, showing it's a lighter gas. Experiment for Dilution? - correct answer 1) Put a coloured substance in a solvent e.g f...

Acceptable Macronutrient Distribution Ranges (AMDR) - Answer-values for carbs, fats and proteins expressed as percentages of total daily calorie intake; ranges of intakes set for the energy-yielding nutrients that are sufficient to provide adequate total energy and nutrients while reducing the risk of chronic diseases. Acid-base balance - Answer-maintenance of the proper degree of acidity in each of the body'd fluids. Adequate Intakes (AI) - Answer-AI's are the nutrient intake goals for i...

HESI A2 CHEMISTRY WITH 100% CORRECT QUESTIONS AND ANSWERS The breaking of bonds and the reforming of new bonds to create new chemical compounds with different chemical forumulas and different chemical properties. - ANSWER-Chemical Reaction syntehesis, decomposition, combusion, single replacement, double replacement - ANSWER-Five main types of chemical reactions. Two elements combine to form a product. - ANSWER-Syntehsis Reaction The breaking of a compound into component parts. ...

HESI A2 CHEMISTRY, QUESTIONS WITHACCURATE ANSWERS. GRADED A+ LATEST UPDATE 2023 Mixture with uniform density throughout and no distinguishable coponents. - Homogeneous Mixture Mixture in which the components are readily distinguished. - Heterogeneous Mixture A change in which the checmical composition of a substance remains the same. - Physical Change A change in which the chemical bonds are broken and reformed to create a new and different substance. - Chemical Change The simplest ...

Select the reacting ratio that is not applicable to the following reaction. C3H8(g) + 5 O2(g) → 3 CO2(g) + 4 H2O(g) a.) 3 mol CO2/ 5 mol O2 b.) 2 mol C3H8/ 10 mol O2 c.) 1 mol H2O/ .25 mol C3H8 d.) 6 mol CO2/ 10 mol O2 e.) 8 mol H2O/ 3 mol C3H8 e.) 8 mol H2O/ 3 mol C3H8 Given the following reaction, calculate the number of moles of oxygen gas that are required to react with 4.47 mol dodecane, C12H26. 2 C12H26(l) + 37 O2(g) → 24 CO2(g) + 26 H2O(g) Enter your answer below to 3 ...

BSMCON 2102 Test 3 Questions With Answers 22023 Graded A+. deep palpation - ANSWER used to delineate abdominal organs and masses; note location, size, and shape of masses and presence of tenderness pads of fingers 1cm depression into abdomen - ANSWER light palpation technique palmar surface of fingers - ANSWER deep palpation technique press in and up while the patient takes a deep breath; edge should feel firm, sharp, and smooth - ANSWER Liver palpation technique press in slowly and firml...

BSMCON 2102 Test 3 Questions and Answers 2023 Graded A+. concentration/storage of bile in the Liver and Gallbladder (amount) Right Upper Quadrant - ANSWER Location: Liver Right Upper Quadrant - ANSWER Location: Gallbladder Right Upper Quadrant - ANSWER Location: Duodenum Right Upper Quadrant - ANSWER Location: head of the pancreas Right Upper Quadrant - ANSWER Location: right kidney and adrenal Right Upper Quadrant - ANSWER Location: hepatic flexure of the colon Right Upper Quadrant - AN...