Name: ___________________________________ Date: ______________ Practice Test #3 ____ 1. When a precipitation reaction occurs, the ions that do not form the precipitate A) evaporate B) are cations only C) form a second insoluble compound in the solution D) are left dissolved in the solution E) none of these 2. An aqueous solution of potassium chloride is mixed with an aqueous solution of sodium nitrate. The complete ionic equation contains which of the following species (when balanced in standard form)? A) B) C) D) E) ____ 3.
The organisation could also be fined by not complying with the law which would have a negative effect with exposure in the media. Organisations would have a reduction in patient and public confidence and so their reputation would be affected and patients would choose to have their care else where. Members of staff would also have a decrease in confidence with the organisation and their stress levels will increase. On the individual: This could cause further complications to their primary condition increasing their recovery time and possibly giving them a lengthy stay in a hospital setting. Patients may be forced to stay off work which will lead to a loss of earnings putting more stress on the individual and their families, possibly leaving a patient needing treatment for depression.
Oil hypothesis accept/reject = Accept, the final result had very little oil in it. b. Vinegar hypothesis accept/reject = Accept, the final result had very little vinegar in it. c. Laundry detergent hypothesis accept/reject = Accept, the final result had a great amount of laundry detergent in it. 3. What affects did each of the contaminants have on the water in the experiment?
1A-Water/MSG: When shaken the water and MSG they mostly dissolve creating an orange gold color, the substance foams at the top from the vigorous shaking action yet still some MSG residue remains at the bottom of the test tube, it was unclear if the reason was because we did not mix it enough or rather we added too much MSG to the amount of water given. 1A-Alcahol/MSG: These two substances barely mix together leaving a transparent yellow tint to the alcohol as well as MSG that was unable to dissolve at the bottom of the test tube. We concluded that this residue was unable to be dissolved in this liquid because the amount of MSG remaining in the bottom of the test tube was around the same amount that was originally placed into the alcohol. 1B- Alcohol/Vegetable Oil: Created a foamy top layer, was semi unclear but as to the best of my observations the alcohol nearly completely dissolved the oil, leaving a foggy appearance to the once clear
The threat of terrorist attacks changed American culture immensely; the devastation wakened the need for protection and a sense of security. Dramatic measures were taken in order to protect this country, so foreign relations were severely affected. Post 9/11 government saw the “link between immigration and security”, and that by changing foreign policy it would “reduce the likelihood of future attacks” (Krikorian 567).The safety measure in airports were countless from metal detectors to full body scans. “The immigration system has being penetrated by the enemy”, the officials realized which led to unfair accusation of innocents (Krikorian 568). “Overzealous officials” grill suspicious foreigners “to the point of near panic” (Khan 559).
In this mixture, there are no enzymes present and therefore no products are formed. The reaction rate was rated 0, just as we anticipated. 2. The 2nd experiment was a mixture of 2 mL H2O2 and 0.1g Manganese dioxide. We can use the same principal we used for the first experiment, Manganese dioxide is not a protein, not an enzyme, it is a catalyst.
However, in many instances, no precipitate forms because the recombination of ions yields only soluble compounds. In this experiment you will mix together solutions containing various dissolved ions to determine how the solubility rules listed in Table F were created. Pre-lab questions: 1. Explain, on the particle level, what happens to ionic compounds when they dissolve in water? [1 pt] Ionic compounds dissociate when it dissolve in water.
It was a threat to Bolthouse Farm despite the fact that the company produces quality beverages. The entrance of new fruits may lead to a distribution of customer demands and a corresponding decline in the sales of Bolthouse Farms products. Another threat facing Bolthouse Farms is the frequent disease outbreaks that affect fruits and vegetables. The threat may lead to significant losses as lots of money is spent on pesticides and insecticides. The conditions can even result in complete destruction of the plants therefore incurring significant losses.
This is a community problem because overcrowding an emergency department with patients which conditions that could've been prevented or treated elsewhere can cause delay in services for patients that are in true need of emergency department. Due to overcrowding in the hospitals ambulance with emergencies can be diverted to other facilities, it also affect the availability 0f beds in a hospital, it can cause people in need of hospital services to drive further away from a nearby hospital, and along with the increase of taxes paid to the government. Overall due to all these delays in services it can lead to poor health outcomes. The overall goal of community health is to improve the health of the communities and vulnerable populations. This can be achieved by providing services that can be useful to the community.
Bad enough for Joe, not only does drinking create problems within his home and his work, it effects his body mostly me for that matter. Drinking could cause several different problems being that of a little damage to more damage than anyone would want. It could create cell damage, enlargement of kidneys, and harm to the hormones that control the kidney function. The alcohol Joe is enriching his body in is making an ionic imbalance this is really bad for the metabolic process. With Joe being so stressed out all the time it gives him high blood pressure this makes me nervous that I’m going to get chronic kidney disease.