Concept explainers
(a)
Interpretation: To write
Concept Introduction :
Scientific notation: It may be defined as the special way to write very small and very large number in easier way so that it will be easy to write and understand.
And standard form is normal way of writing the numbers.
(b)
Interpretation: To write
Concept Introduction :
Scientific notation: It may be defined as the special way to write very small and very large number in easier way so that it will be easy to write and understand.
And standard form is normal way of writing the numbers.
(c)
Interpretation: To write
Concept Introduction :
Scientific notation: It may be defined as the special way to write very small and very large number in easier way so that it will be easy to write and understand.
And standard form is normal way of writing the numbers.
(d)
Interpretation: To write
Concept Introduction :
Scientific notation: It may be defined as the special way to write very small and very large number in easier way so that it will be easy to write and understand.
And standard form is normal way of writing the numbers.
Want to see the full answer?
Check out a sample textbook solutionChapter 1 Solutions
Basic Chemistry
- 7. The movement of particles of matter can be affected by some external factors. What are the factors that affect the movement of particles of matter? B. Temperature A. Pressure C. Odor and appearance D. Size and temperaturearrow_forwardLABORATORY SAFETY 1A. You are finished with the lab activity when: a. you have collected your data b. you have followed proper clean-up procedures c. the group next to you is done d. the bell rings 1B. If the fire alarm sounds during a lab activity, a. leave only if the fire is in the room where you are located b. leave the room as quickly and quietly as possible without doing anything to your lab station c. turn off all heat sources and follow the evacuation procedures d. carefully put away all your materials and exit 1C. If a piece of electrical equipment has a damaged wire, a. it is okay to use it is you don't touch the damaged part b. it should be fixed before use c. it should be given to your instructor right away d. it is okay to use it if sparks are not shooting from the wire Please answer within 30 minutes to 1 hour. Please try to answer all, if possible. Thank in advanced!!!arrow_forward37.Which of the following is an example of good lab safety practices? A. Wearing sandals or flip-flops to lab. B. Placing a cap on all chemical containers when not in use. C. Handling chemicals without wearing your PPE. D. Taking off your goggles if you're not using chemicals, even if the person next you is working with chemicals. E. Wearing shorts in lab.arrow_forward
- Unused chemicals from an experiment should be a. Disposed of in the proper container as indicated by the instructor b. Saved for next class c. Returned to their original containers d. Dumped in the sinkarrow_forwardMRI machines primarily work using ____.a. The nuclei of carbons in fatty acid chainsb. The nuclei of oxygen atoms from water molecules in the bodyc. The nuclei of hydrogen atoms from water molecules in the bodyd. The nuclei of radioactive isotopes injected into the bodyarrow_forward• Stock solution: 1000 mg/L Target sample concentrations: 50-400 mg/L • Create a 5-point standard dilution to cover the test • If each test only needs 10 mL, make plans to make the dilution so you have 20 mL of each concentration. ·arrow_forward
- Which of the following is true about heavy metals and their environmental impact? a. Coffee and tea waste could be viable options to rid water of heavy metals. b. Based on the study shown in class, coffee is definitively the best option to rid heavy metals from water. c. Coffee, tea and caffeine all remove heavy metals from contaminated water through absorption. d. Copper is the most prevalent metal found in drinking water that can cause harm to the environment and humans. e. Copper and zinc concentrations in drinking water are significantly higher in areas with human activity.arrow_forwardThe human body may seem to be a perfectly efficient system, but there is a source of energy input, to keep a human body running at maximum efficiency. This energy comes from: A. sleep B.food C.exercise D.UV radiationarrow_forwardWhat chemical properties can be used to model environmental harm? What is bioaccumulation? Select one: a. Build-up of a chemical in an organism. b. Build-up of a chemical in an organism by ingesting the chemical through water only. C. Build-up of a chemical in a food chain. d. Build-up of a chemical in the environment (since the chemical cannot degrade in through normal environmental processes).arrow_forward
- Explain how can hazardous wastes produced from the experiments should be stored, handled, and disposed. Discussion must NOT be more than 3 sentences in each item. State your answers using your own words and understanding. a. Stored b. Handled c. Disposedarrow_forwardWhat should you always have on when performing an experiment? select all the ones that apply A. Closed toed shoes b. Unbuttoned lab coat c. Yoga pants d. Splash googlesarrow_forwardMCQ 30: Polystyrene drinking cup can act like the apparatus of A. calorimeter B. spectrometer C. barometer D. manometerarrow_forward