Module 2 Lesson 2 Assignment Attempt review VVS

Question 2 of 22 This question is designed to ensure that you are using your calculator correctly. Use a calculator to do these calculations. Keep at least two significant figures in your answers. 1.6 x 104 %D 8.6 x 10-2 TOOLS x10

Name the following Fe(NO3)2

make a statement of the problem and a hypothesis for both questions, the statement of the problem should be starting with “This capstone research aims to determine_______”

Please answer question 6 part A

Identify the longest length Group of answer choices 1.04 yd 86.87 cm 3.05 ft 1.05 m 38.0 in

1-Two Students A and B performed four analyses on a sample for its calcium content and got the following results: Student A 18.30% 18.50% 18.60% 18.8% Student B 16.92% 16.91% 16.88% 16.91% The actual amount of calcium in the sample is 16.90%. Which of the following statements is correct? a) Student A is less accurate and less precise than student B. b) Student A is more accurate and more precise than student B. c) Student A is more accurate but less precise than student B. d) Student A is less accurate but more precise than student B. e) Student A is more accurate than student B.

You are given four values (1.033, 4.157, 1.05, and 4.6) and asked to conduct calculations on them. You perform a series of mathematical operations using the values and make a table that includes the calculated value as displayed on your calculator: Mathematical operation Value displayed by calculator 1.033 +4.157 +1.05+4.6 10.8400 1.033 x 1.05 1.08465 4.157 - 1.05 3.10700 4.157/31.0341 0.133949 4.6/31.0341 0.148224 Round each of the values displayed by the calculator to the correct number of significant figures, and place the value in the bin that correctly indicates the number of significant digits you rounded to. Drag the appropriate items to their respective bins. » View Available Hint(s) Reset Help 10.8400 1.08465 3.10700 0.133949 0.148224 1 significant figure 2 significant figures 3 significant figures 4 significant figures

Part 1: Color the 4 blocks of the table a unique shade. Be sure to label each block by its proper LETTER Grey Roya Blue Dark Turqu Turqu oise oise

Which of the following statements concerning the SI system is/are correct? 1. Prefixes are used to indicate a power of ten multiplier for a given SI base unit of measurement. 2. Degrees Celsius (°C) is the SI base unit for temperature. 3. The kilogram (kg) is the SI base unit for mass. O1 only O2 only 3 only 1 and 3 O 1, 2, and 3

Consider the following operations on the number 8.83 x 10-². Without using a calculator, decide which would give a significantly smaller value than 8.83 x 10-2, which would give a significantly larger value, or which would give essentially the same value. 8.83 x 10-2 +3.23 x 105 (same 8.83 x 10-2-3.23 x 105 smaller 8.83 x 10 2 x 3.23 x 105 larger v 8.83 x 10-2/3.23 x 105 smaller

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Please answer question 3 part A

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Arrange the values to the magnitude. Which one is the greatest to the least?

PLEASE ANSWER ALL OF THE QUESTIONS ON THE PICTURE, PLEASE.

Profiles Tab Mopu!M Help Edit View History Bookmarks Chrome File Amity x + x Y x Sso x ar h01 Chem X E Chem X O Digge x M Home X Topic: X A app.101edu.co : の EReading List E Apps M Gmail O YouTube Submit Question 18 of 53 The distance between the centers of two oxygen atoms in an oxygen molecule is 1.21 x 10 What is this distance in nm ? cm 1.21 x 10 STARTING AMOUNT nm 1.21 x 10 cm x ADD FACTOR DELETE ANSWER RESET ()* 1.21 x 10 0.121 1.21 x 1015 1 0.01 1.21 0.0121 ChemistryAtoms..pdf Digger Series.png Amity Series.png Show All Join a meeting temperature. %3D verba descrip: 2022AOSU- 121-400 MacBook Air F2 F3 O00 F4 F5 F7

Determine mass of cube. Record mass in Lab Data.

Find the weighted average of these values. Weighted average Value Weight 3.00 75.0% Number 4.00 15.0% 5.00 10.0%

What is the mass of 1.91 x 10^23 atoms of nitrogen? ____ grams What is the mass of 3.91 x 10^23 molecules of nitrogen? ____ grams What is the mass of 1.10 x 10^24 atoms of oxygen? ____ grams What is the mass of 9.26 x 10^23 molecules of oxygen?  _____grams     PLEASE ANSWER ALL THE QUESTIONS ITS ACTUALLY ALL IN ONE SINGLE QUESTION, THANK YOU!

Classify the substance shown in the sketch below. You can click the other tabs in the sketch to get a magnified view. Be sure you check all the boxes on the right-hand side that are correct for this substance. Note for advanced students: in some sketches the distance between particles has been exaggerated to make it easier to see each individual particle. normal substance 1000X 10,000,000X 000 classification (check all that apply) gas liquid solid element compound mixture solution pure substance homogeneous mixture heterogeneous mixture

In an experiment, calcium carbonate reacted with different volumes of hydrochloric acid in water. One of the products formed during the experiment was carbon dioxide. The time taken for 0.89 mL of carbon dioxide to form was recorded. A partial record of the experiment is shown. Flask Mass ofCalcium Carbonate Volume ofHCl Volume ofWater Time 1 4.0 g 25 mL 0 mL 11.2 seconds 2 4.0 g 20 mL 5 mL   3 4.0 g 15 mL 10 mL   4 4.0 g 10 mL 15 mL   Based on your knowledge of factors that affect the rates of chemical reactions, predict the trend in the last column of the experimental record. Use complete sentences to explain the trend you predicted. You do not have to determine exact values for time; just describe the trend you would expect (increase or decrease) and why it occurs

Try Again Your answer is incorrect. Classify the substance shown in the sketch below. You can click the other tabs in the sketch to get a magnified view. Be sure you check all the boxes on the right-hand side that are correct for this substance. Note for advanced students: in some sketches the distance between particles has been exaggerated to make it easier to see each individual particle. normal substance 1000X 10,000,000X classification (check all that apply) gas liquid solid element compound mixture solution pure substance homogeneous mixture Oheterogeneous mixture X Ś

Please answer question number 1  correctly with the correct answer. there is a picture of an example of a ''Dimensional analysis Format' below. please write out all work showing the math in dimensional analysis format. (please show all work)   Question 1: How many atoms of Zinc are in 0.60 mol of zinc?

Please answer question 1 & 2 in your own words: Question 1: Density has obvious importance when it comes to the buoyancy of objects. What is buoyancy and how does it relate to Chemistry? And Everyday life? Is Density a Law? Question 2.