2) What evidence indicates that new substances with different properties are formed during chemical reactions? 3) How does # 2 above relate to the Law of Conservation of Mass?
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- How do you apply 5s (sort, set in order, shine, sustain and standardized) of chemical safety specifically at HOME and SCHOOL? Enumerate.TRUE LIES: There are many misconceptions regarding fire. A person must equip himself with factualinformation to guarantee safety. Not all shared information is true. So, can you spot them?Direction: Below are statements about basic information on fire. On your answer sheet, write TRUE if thestatement expresses a correct idea, otherwise write LIE.4. Fire is a thing, not an event.5. Assuming stable fuel, heat, and oxygen levels, a typical house fire is constant in size every minute until the firedies down.6. Earth is the only known planet where fire can burn.7. Water can be produced by fire.8. Using concentrated sunlight, ancient Greeks were able to start fire. A parabolic mirror that focuses solar rays isstill used to ignite the Olympic torch.9. Among the stages of fire, the last stage which is the “decay stage” takes the longest time to finish.10.All fire extinguishers are multipurpose, meaning each one can put out all types of fire caused by any material.NOTE: JUST THE ANSWER ONLY NO…Carbon monoxide levels and the presence of soot can beused to determine whether the individual was___________ at the time of the fire.
- Please give me answer The TNT equivalence of an industrial explosion is 2 tons. Find the distance from the site of the explosion over which people are knocked down by the blast.The studies on the toxic effects of chemicals in the environment are important in attempting to measure and assess the toxic effects. (a)With a suitable examples, identify TWO main effects of toxicity. ( 4 ) (b)There are several routes of entry of the toxicant into the human body which in the end can cause harmful diseases. From your point of view, why a modern lifestyle can create a pattern of harmful disease due to a toxicant and suggest how to overcome the unwanted interaction from happening. ( 16 ) ( Total / Jumlah: 20 )LIMIT TEST (IMPURITIES - BIOLOGICAL) Instructions: Note the color change of each of the samples by writing blue or pink accordingly. Then give inference whether the sample is contaminated or not contaminated upon observation. Answer the highlighted numbers. BLANK (Sterile distilled water) Reference Sugar Solution Sample A Sample B REPLICATE 1 BLUE BLUE PINK PINK REPLICATE 2 BLUE PINK BLUE PINK REPLICATE 3 BLUE PINK PINK PINK INFERENCE NOT CONTAMINATED CONTAMINATED 1 2 1. 2. 3. Which of the two samples is relatively clean of biological impurities? 4. Given the result in limit test as an analyst, what will be the final conclusion to this? Write whether rejected or accepted for each sample. (see attached photo)
- True or false? (No need explanation) different types of gloves protect against different types of chemicals. The most likely route of entry for exposure to chemicals is through your nose and mouth. Never expose yourself to any meterial unless you know exactly what it is, how it can hurt you and what you need to protect yourselfGive an example of an organic chemistry laboratory process that involves medium to high severity and likelihood, and list precautions that can be taken to lower the risk.The 2 images attached go together so with the image attached please write 1 paragraph 1 paragraph: analysis explained in one paragraph Please please please answer everything it's very important please answer fast Please write it in one paragraph please
- 5 please help! *urgent* write as many accurate and relevant statements about the picture below. please write more than 5 correct descriptions/statements. please be as descriptive as possible.I need help with this image. Super pandemic here in our place im locked in my house :(give your own guidelines on how to keep a lab area in a school free of hazardous pollutants. The rules should be based on the Toxic Substances and Hazardous and Nuclear Waste Control Act of 1990 known as R.A 6969 and also use reduce, reuse, and recycle strategies.