Which of the following reactions are correct? There may be more than one correct answer

Q: B. Molar Mass of a Gas MATERIALS (*student supplied materials) • Lighter* • Large container or…

A: Experiment Procedure: Safety First:  Always wear safety goggles during the experiment to protect…

Q: ASSERTION: The solubility of all gases in water decreases with the rise in temperature. REASON: The…

A: The solubility of gases in water is inversely proportional to temperature because if the temperature…

Q: Question 14 Which of the following statements about energy is false? O Energy cannot be converted…

A: Energy cannot be converted from one form into another

Q: Compare columns I and II, and write A if the value in column I is greater than in II B if the value…

A:

Q: Each blank has one correct answer( see figure 5-4):  Answer choices for blank 1: A and B   A and C…

A: The resonance figures of the compound H are shown belowWe have to determine the correct two…

Q: chemical and physical changes

A: The difference between physical and chemical changes in a reaction is as follows.

Q: 16. What is the law of conservation of mass?

A: The law of conservation of mass states that :"The mass in an isolated system can neither be created…

Q: density of irregular solid mass of irregular solid 9.039 g initial volume 68 mL final volume 74…

A: Given , Mass of irregular solid = 9.039 g Initial volume = 68 mL Final volume = 74 mL Total volume…

Q: B. Calculate the following information. USE THE FACTOR-LABEL METHOD TO DO YOUR CALCULATIONS!!! 1. A…

A: The density of a solution is calculated by the formula: Density=MassVolume   Note: Since you have…

Q: Part A Weigh the mass of the dried metal strips from test tubes 1 and 5 using the electronic…

A: The objective of this question is to measure and record the mass of the dried metal strips from test…

Q: TWO procedures that can cause the result to have poor accuracy or precision in the experiment.

A: The two main procedure by which one will get wrong result and poor accuracy. One of them is…

Q: Which practice is NOT used to gauge accuracy? raw data and results from calibration checks B.…

A: Accuracy is used to determine whether given results is close to true value and it is free from…

Q: It is a type of mixture with particles evenly scattered in a dispersed medium without settling down

A: Mixture is the  combination of  two substance.  There are  two types- 1) Homogeneous  mixture.  2)…

Q: Multiple Choice Each of the numbered items or incomplete statements is followed by answers or by…

A: The main aim of this question is to show the selection of appropriate standards, indicators, and…

Q: chemical score?

A: The chemical score is the content of essential amino acid present in the nutrition. It also tells…

Q: am student i love chemistry My question is what is chemistry

A: Chemistry is the study of matter — what is in it, what are its properties and how does it change.…

Q: Chemistry is a science because:Unique option.   A) is a set of knowledge   B) use the scientific…

A: What is chemistry?

Q: Vhen reading off of a calibrated instrument or glassware, the last digit reported is always an…

A: To determine the accurate value of the sample or the data, calibrated instruments are used. A…

Q: 2. What’s the main purpose of the glass shields on an analytical balance? A. To calibrate the…

A: The main purpose of the glass shields on an analytical balance is to remove the air current so that…

Q: Question 6 Indicate what is true when using a graduated cylinder to measure volume. Multiple answers…

A: the statement that is true when using a graduated cylinder to measure volume:

Q: Which of the following pairs have a relationship that is most similar to composition? Group of…

A: 2 ) A car and an engine  Composition means mixure of something or together .

Q: A patient went to see the doctor in hospital, the doctor ask for a blood test. Results shown that…

A:

Q: 1) 2) 3) 4) 5) Li3PO4 + MgF₂ + P4 + RbNO3 + AgNO3 + NaOH → Li2CO3 → O2 → -P2O3 MgF₂ → LIOH + MgCO3 +…

A: The above given question are to balance the chemical equation.  Balancing of chemical equation…

Q: 3. Round each average to reflect the precision of the data set. Standard Deviation Rounded Average…

A: In the given data set unrounded Average is given,from there rounded average has to be calculated.

Q: 1. a. What are the three classifications of chemicals used in analytical chemistry? (one is Primary…

A: In the given question we have to explain three types of chemicals, common sources of error and…

Q: Energy Use the terms in the word bank to complete the graphic organizer below. Word Bank potential…

A: Energy is defined as the capacity of doing work.

Q: Suppose you are measuring the mass of a solid sample on a balance using a weigh boat. You record the…

A: An instrument used to determine the weight of samples used in analysis is called a weigh balance.…

Q: Match the correct prefix with the factor.

A:

Q: 21. Water goes through a chemical change when it evaporates into a gas.   Group of answer choices…

A: Types of changes in nature: Chemical change: During this type of change the chemical nature,…

Q: For question number 2 does that mean weigh the dish to 0.001g without clearing it ?

A: In step-1, after cleaning the evaporating dish properly, we have to heat to remove any impurities…

Q: Alcohol evaporating is an example of what? Group of answer choices A chemical change A physical…

A:

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: 22. Energy is not considered a form of matter. Which of the following reasons correctly explains…

A: Matter: This is a part of universe. Matter is has measure the mass. Matter has own volume .  Energy:…

Q: Scientific method on lemon battery. show the problem, observation, hypothesis,experiment, and…

A: The experiment on lemon battery is whether the citric acid fruits like lemon produce electricity

Q: Suppose you are measuring the mass of a solid sample on a balance using a weigh boat. You record the…

A: given,               The mass of weigh boat = 3.451 g.             Mass of weigh boat and sample =…

Q: Use the data set below to answer the following question. This is a fictitious data set, so no units…

A:

Q: Are students allowed to place a hot crucible on the balance? (Choose all correct answers) Yes. Hot…

A: The concept behind the answer is that weighing hot objects on a balance can lead to inaccurate…

Q: Question 1 (1 point) Why was the Declaration of Independence written? O a Secure the rights of the…

A: 1.The declaration of independence was written to gain independence from Great Britain

Q: Select the Heterogeneous mixture from the list.a) A bar of Gold b) Cement with gravel c) Ammonia d)…

A: A homogeneous mixture has uniform composition throughout the mixture whereas the heterogeneous…

Q: Which of the following represents the correct use of an internal standard (IS) in a quantitative…

A:

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".