List all pictograms that are not hazard symbols but are seen in the laboratory

Q: 7. F2 (g) NacI (s) +

A: Balance chemical equation, balance chemical equation can be define as the reaction in which number…

Q: copper sulfate solution water d

A: Experiment A method used in science to discover information by carrying out a set of acts and…

Q: Balance the following using the algebraic method: 1) CH3ONA + NaCIO2 + HCI → COCI2 + NaCl + Н20

A: The reactions in which oxidation and reduction occur are known as redox reactions. A balanced…

Q: Which of these changes are physical and which are chemical? Explain.(a) Plants make sugar from…

A: According to the question, sugar is made from water and carbon-dioxide. We have to mention as to…

Q: QI) A) List five safety rules which should be followed in chemistry laboratory.

A: Lab safety plays an important role in the when one is working a lab full of hazardous chemicals.…

Q: Volumetric measuring devices may be stamped as TD (to deliver) or TC (to contain). Which of the…

A: The inscription of TD means ‘to deliver’ and TC means ‘to contain’. These inscriptions are helpful…

Q: Which of the thermometer listed A – E is a standard thermometer Constant volume gas themometer…

A: B) MERCURY IN GLASS THERMOMETER IS THE STANDARD THERMOMETER

Q: BIU x' A A 三= 星 Font Sizes Water Rubbing Alcohol Color Smell Solubility of Salt

A: Rubbing alcohol is basically isopropyl alcohol or an ethanol-based liquid. We know that alcohol is…

Q: What is (17.3g  +  2.785g)/30.20mL

A: Given: (17.3g  +  2.785g)/30.20mL

Q: Classify the following as physical or chemical change Opening a can of soda and letting the gas…

A: Physical change is a change in physical appearance of a substance.  Chemical change is a…

Q: Unit Analysis 1 inch) 11. How many cubic centimeters are in 12.60 cubic feet? (2.54 cm

A: Given,12.60 cubic feet.

Q: In any chemistry laboratory course, apparatus and equipment are essential to perform the required…

A: CUTTING OF GLASS TUBE AND GLASS ROD Material Required• Soda-glass tube: 15 cm long• Soda-glass rod:…

Q: 4. Water, table salt, and sugar are examples of a. Mixtures c. Compounds c. Elements d. Solutions

A:

Q: How many cubic centimeters gold must be processed to obtain $100.00? The density of  the ore is 8.0…

A: Density of any substance is defined as mass of substance divided by the volume occupied. Density…

Q: What is the volume of an object that displaces water in a graduated cylinder from 10.8 mL to 14.7…

A: Given:The initial volume level of water = 10.8 mLThe final volume level of water = 14.7 mLWe need…

Q: A fishing boat accidentally spills 3.0 barrels of diesel oil into the ocean. Each barrel contains 42…

A: Given: volume of oil = 3 barrels thickness of oil film = 2.5 x 102 nm volume of oil = 3 barrels ×42…

Q: what is the importance of chemistry for medical students?

A: Chemistry- Branch of science which deals with the study of chemical properties of elements, their…

Q: The blood plasma volume totals of 2.8-3.2 qt in an average human. A quart is a unit of mass. A quart…

A: A quart is a unit of volume. It is represented by qt. 1 quart is equal to 0.946353 liter. 1 qt =…

Q: Enumerate 5 chemical changes that can be observed at home

A: There is multiple observations in which chemical change occurs some of them are given : Burning…

Q: A student is measuring the mass of 20 paper clips using an electronic balance that measures to the…

A:

Q: matte gray in color has a mass of 77.83 g begins to melt at 961.78 degrees Celsius has a volume of…

A: The properties of matter that do not depend on the size or quantity of matter in any way are…

Q: Identify the common steps of scientific methods.

A: A scientific method is a systematic way to find answers to question or problems.

Q: Solving Problems using a scientific approach.

A: There are six important point to solve a problem via scientific approach.

Q: Two liquids, A and B are immicible. Liquid A has a density of 0.89 g/mL. Liquid B has a density of…

A: The solution is given below -

Q: This question has two parts Part One: A scientist conducts a few experiments in her lab and comes up…

A: A hypothesis is an assumption, an idea that is proposed for the sake of argument so that it can be…

Q: What are the similarities in random error and systematic error? In analytical method and graphical…

A: Answer - Random error - Random error is a chance difference between the observed and true values of…

Q: physical and chemical methods are one of the quantitative analysis .A True .B False .C .D

A:

Q: A piece of metal ore weighs 9.00 g. When a student places it into a graduated cylinder containing…

A: Given:Mass of piece of metal = 9.00 g = 9.00x10-3 Kg.Volume of cylinder without metal piece = 21.25…

Q: How many kilograms does a 48 pack of 500 mL water bottles weigh (assume plastic bottles have…

A: Density of any substance is the ratio of mass and volume. It is denoted by ρ(roh). Density =…

Q: Write A if only statement A is true; Write B if only statement B is true; Write C if both…

A:

Q: SOLID LIQUID GAS PARTICLES ENERGY AND MOVEMENT OF PARTICLES SPACES BETWEEN PARTICLES ATTRACTIVE…

A: Matter is anything that has mass and occupy the available space. Matter is physically classified as…

Q: Write A if only statement A is true; Write B if only statement B is true; Write C if both…

A: All safety measures must read before performing or we can say before entering chemistry laboratory.

Q: [H*] [OH"] pH pOH 1. 32. 9.5 | 33. 4. 35. 36. 8.1 7. 38. 6.9 39.

A:

Q: Hazard symbols are recognizable symbols designed to know about (safety). * O True O False

A: Hazard symbols are some pictorial presentation which give some information about dangers associated…

Q: A small amount of resin weighing 4.56g occupies a height of a 10-mL graduated cylinder equivalent to…

A:

Q: Water Volume Water Volume Object Volume Without Object (mL) With Object (mL) Object (mL) Nut 20 23

A: Volume of object can be calculated as  = Water volume with object - water volume without object

Q: 1.15 Give the chemical symbol or name for the following elements,as appropriate: (a) sulfur, (b)…

A: Since you have posted a question with multiple subparts, we will solve first three subparts for you.…

Q: Express it to scientific Notation. 1.) 1 230 045 600 000

A: The following zeroes after the non-zero digit shouldn't be counted in the significant digits. But if…

Q: define Conversion Factors

A:

Q: description of an element at the particulate level

A: An element is a substance that has only one type of atoms. These atoms are not chemically connected…

Q: 105.5-g sample of a metal was placed into water in a graduated cylinder, and it completely…

A: Density The density of a substance is the ratio of the mass of the substance to the volume of the…

Q: 1. Convert 42 tons/year to hectograms /second. 1 ton = 2000 pounds 1 pound = 454 grams 1 year =…

A: # Always try to put the value of known unit. # Unit can be written in form of magnitude × unit and…

Q: Q1) A) List five safety rules which should be followed in chemistry laboratory. B) List five of…

A: 1. While working in chemistry laboratory, one should wear the lab coat, goggles, gloves and shoes .…

Q: Common Laboratory Equipment DI

A: Since you have posted multiple apparatus, the labelling of first three apparatus are given. Kindly…

Q: How to put metric equations from longest to shortest. 3*105 cm 5*105 mm 0.007 km 5*1011…

A: Given : Different - different metric equations. To find : order of metric equations from longest to…

Q: 1. Convert 42 tons / year to hectograms /second. 1 ton = 2000 pounds 1 pound = 454 grams 1 year =…

A: We have convert 42 tons/year to hectograms/second

Q: Which of the following is incorrect: a. General steps in quantitative analysis include: Method…

A: Statement a is correct as general steps is quantitative analysis includes all given steps.

Introduction to chemistry

Chemistry is a branch of science that deals with the analysis of material and the substances that comprise it. It also manages the properties of these substances and their reactions to form new substances. It is basically centered on particles and atoms that make up components and mixtures. These chemical species will in general connect using bonds.