General Questions and Answers

How many grams of Fel3 can be produced with 25 7 g Fe react with excess 12 Fe 12 Fel3 unbalanced 121 g Fel3 201 g Fel3 91g Fel3 151 g Fel3 O

If 25 0 g of zinc metal are reacted with 30 0 g of lead II chloride zinc chloride and lead metal are formed If a 90 0 yield is produced how much zinc chloride will there be in grams 11 2 g ZnCl 14 2 g ZnCl 16 2 g ZnCl 13 2 g ZnCl

In a chemical reaction one of the chemical reactants is present in to make sure that the limiting reagent is completely consumed a Dearth b Excess c Tantamount

Should you do the Whoosh 1st Lab at home Yes without a Doubt NOL

Find the final pressure of a gas at 150 K if the pressure of the gas is 0 75 atm at 12 K

The urinary system also known as the system consists of the the urethra 1 The urinary system filters by product or renal ureters bladder renal pelvis and The purpose of the urinary system is to body regulate blood electrolytes and waste from the and blood pressure control levels and regulate blood and creates as a waste

5 Why do you think it is important to have a good urinary tract What do you think the major impacts of having an unhealthy urinary tract is

Did Ammonium Chloride and Water get Colder or Hotter O Hotter colder

Article What were scientists able to determine as the reason for the nearly 50 drop in atmospheric pressure 1 Point Carbon dioxide was being removed by cyanobacteria There was no oxygen present because cyanobacteria had not evolved yet The nitrogen was being returned to the atmosphere by organisms There nitrogen was being removed from the atmosphere by organisms

What mass of zinc reacts completely with 18 0 g of copper II nitrate Zn Cu NO3 2 Cu Zn NO3 2 6 28 g Zn 4 88 g Zn 07 18g Zn 5 68 g Zn

cake requires 3 eggs 4 cups of flour 2 cups of sugar and 1 stick of butter In the efrigerated pantry a chef has the following available 46 sticks of butter 62 eggs 50 cups of flour 37 cups of sugar Which is the limiting reagent the limiting ingredient that will run out first and how de you know Justify your answer mathematically

10 What is the main difference between a male urinary system and a female urinary system

This equation models how pure silver Ag is extracted from ores of AgK CN 2 potassium argentocyanide which is mined from the earth Zinc is a reactant in the equation and it is needed in order to extract the silver from the potassium argentocyanide ore 2AgK CN 2 aq Zn s 2 Ag s Zn CN 2 aq 2KCN aq 2004 IN GOD WE TRUST https en wikipedia org wiki Silver media File American Silver obverse 2004 jpg How many atoms of pure zinc Zn are needed in the production process to create a pure silver coin of mass 30 0 grams Answer Zn atoms Use 3 significant figures for answer Format scientific notation using e for example 5 84x10 6 is entered as 5 84e16

In the reaction CH4 202 CO 2H O how many moles of CH4 react with 6 moles of O2 O 2 mol KULIN 1 5 mol 3 mol 4 mol

9 How does a kidney infection get diagnosed

1 What are the 7 functions of the kidney

In a thermonuclear device the pressure of 0 050 liters of gas within the bomb casing reaches 4 000 000 atm When the bomb casing is destroyed by the explosion the gas is released into the atmosphere where it reaches a pressure of 1 00 atm What is the volume of the gas in liters after the explosion

A If a 2 00L solution contains 200 0g of sugar MM 180 0g mol what is the molarity of a Kool Aid Drink

The law of Select Question Select conservation reaction of mass states that matter cannot be created nor Select in a chemical reacti

D E G H 03 KCIO NaCl 01 KCI 0 F NaF O ENOM Na H O H SO Ba NO 2 O More than 4 A CO H O Fe OH NaOH H How many decomposition reactions are there in the set of reactions above NaCl HNO BaSO

7 What is the most common disease of the urinary system

CaO H O Ca OH A chemist reacts 140 g of calcium oxide with excess water Calculate the percent yield if she produces only 150 g of the only product calcium hydroxide 83 1 yield 85 1 yield 81 1 yield 80 5 yield

3 What is the life expectancy of someone living with one kidney

How much of the heat is necessary to change 3 kg of water to steam

OT SAU 4 a 20 moles of AlF3 will produce b C3H8 a How b many 0 oxide Al2O3 moles of AlF3 will react with 0 6 moles of 02 moles of 0 Fe F moles of F2 b How many moles of CO are produced if 3 5 moles of water are produ COz H2O oxygen react with 11 moles of C3H8 Fe O3 moles of oxygen gas react a Fill in the following word equation with moles of iron to produce moles of iron III oxid moles of O are required to produce 3 0 moles of iron III

In the reaction above calcium hydroxide and hydrogen sulfide react to form calcium sulfide and water If you combine 11 g of hydrogen sulfide with 15 g of calcium hydroxide 1 Which reactant is limiting Select 2 Calculate the number of moles of calcium sulfide produced if the percent yield is 100 1 Sel Select Question 21 4HF aq SIO s SiF4 9 2H O l 0 20 0 11 0 32 0 26 0 083

6 Where is urine held before getting released from the body

Using the solubility table below select all compounds that are soluble in water aq CaS Cu CrO PbCl SrCl

Image David Monniaux CC BY SA 3 0 http creativecommons org licenses by sa 3 0 via Wikimedia Commons

8 What is the juice recommended to drink to help get rid of a UTI Urinary tract infection

2 What are 6 things someone with one kidney should do to maintain a healthy kidney

5 An unknown metal with a mass of 30 50 g was heated to 370 K and then plunged into an insulated container with 100 00 g of water at 298 K The final temperature of the water and metal mixture was 300 K Assuming no heat loss to the container or the surroundings what is the specific heat capacity of the metal Note that the specific heat of water is 4 184 J g K

Car Free Vector images from Pixabay Https pabay s birthday balkon 25734 It s 32 F 0 C outside under normal atmospheric conditions 1 atm at a stunt performer s birthday party There is a huge blue balloon filled with flammable hydrogen H molar mass 2 02 g mo gas that she plans to safely ignite causing a massive explosion Inside the balloon is 210 g of H g What is the volume of the balloon in liters Round to the nearest whole number

Video According to the video which of the following does not occur on Jupiter 1 Point Winds on the surface can reach 300 mph The Red Spot is an immense hurricane three times the size of the Earth Diamonds form in the atmosphere Hundreds of jet stream currents circle the planet

Select all the compounds that have the an empirical formula with a empirical formula mass of 13 0 g mol empirical C H 4 C H Cate CH10 DC H C H

3 A glass bottle is filled to the top with water and then sealed What will happen when the bottle is placed in the tightly freezer

5 Is Q positive or negative If an object gains energy If an object loses energy A B C D If an object is surrounded by a colder object U increases 6 Given 1000 J of heat which will gain more temperature A Copper or gold B Ice or steam C Ice or water D Aluminum or iron

4HF aq SiO s SiF4 9 2H O 1 With excess HF a chemist needs to know what mass in grams of silicon dioxide is needed in order to produce 18 0 mol of water Here is part of their work Solve this problem on your own i before completing this question 18 0 mol H O 1 03 g SiO 1 mol SiO Match each part with where it belongs in the stoichiometry set up One of them is not needed so match it with This is not needed for that part H a2 a3 This is not needed Choose Choose 2 mol H20 60 09 g SIO2 1 mol SiO2 180 g H20

A new computer chip contains 4 71x1022 Si atoms Determine the mass in grams of the silicon present in the computer chip

When the equation below is balanced what is the coefficient of KCI KCIO3 KCI 0 2 b d 1 423

When the reaction below is balanced the coefficients are Whi Al SO4 3 AIBr3 K SO4 KBr 0 0 0 0 O a O b C 1 3 4 1 2 3 3 1 2 3 6 1 2 2 3 2

Classify each reaction type 1 MN QP QN MP 2 CHO Oz H O CO2 3 JR R J 4 B D BD 5 K EP E KP N UT Choose Choose decomposition synthesis single replacement combustion double replacement triple replacement

Given the substances CH CH F CH Cl Determine which has the highest boiling point and which has the next highest boiling point and choose the correct explanations for your choices has the highest boiling point because of has the next highest boiling point because of Fill in the blanks by selecting one option from each menu ab Part 1 3 points ab Part 2 2 points aby Part 3 3 points ab Part 4 2 points 10 points V

My Activities Tell me what you want to do statistically more valuable to conduct a study over a long period of time Researchers found that schoolchildren who drank soft drinks consumed al calories per day than their counterparts who didn t down soft drinks Tha support the notion that we don t compensate well for calories in liquid form How does the author appeal to ethos in the passage above OBy stating that the study came from Harvard University By finding specific numerical information to support the argument By using children to appeal to readers emotions By making a strong conclusion after presenting a research

Part 1 Congratulations You answered correctly What is the relationship between radiation intensity and distance from the source of radiation The distance radiation intensity relationship is described by the inverse square law 1 1 d d O The distance radiation intensity relationship is described by the square law 1 1 d d O The distance radiation intensity relationship is described by the inverse law 1 12 d d O The radiation intensity does not change with the distance from the radiation source d d eTextbook and Media Part 2 Attempts 1 of 15 used

What is the oxidation state of tungsten in WO

Order the compounds below from lowest viscosity on the left to highest on the right viscosity H H O H C C H H C C HHH butanone HO CC HT LH CH HHH methyoxyethane I I H H HIHIH H H 2 propanol Fill in the blanks by select one option from each men ab Part 1 3 points ab Part 2 3 points Part 3 3 points 9 points

6 A 30 5 g sample of an alloy at 93 0 C is placed into 50 0 g of water at 22 0 C in an insulated coffee cup with a heat capacity of 9 2 J K If the final temperature of the system is 31 1 C what is the specific heat capacity of the alloy

Compare the following Acid 1 acetic acid CH3COOH Acid 2 hydrogen sulfide ion HS Acid 3 hydrocyanic acid HCN What is the formula for the strongest acid

90 has Select Question 6 neutrons than Y 91 16 1 17 2 ISelect 1