Module 1- Activity 2 - Developing Problem-Solving Skills

→ Question Completion Status: Moving to the next question prevents changes to this answer. Question 12 Which state of matter has a compact particle arrangement? solid liquid AME gas plasma Moving to the next question prevents changes to this answer. QO

What is the energy in Joules of one mole of photons of visible light having a wavelength of 6.31 x 10² nm? Do not report units in your answer. Do not use scientific notation, Use 1 decimal place in your answer.

KINDLY ANSWER ALL THE FOLLOWING QUESTIONS GIVEN FROM NUMBERS 7 TO 11. To help me supplement my understanding of the topic. Thank you so much!

Why is it 2x^2 instead of just 2x ?

lon smoaphere 9peducts chemical weathering rock Which of these is a property of water that allows it to transport materials through Earth's systems? O A. Water expands as it solidifies O B. Water is transparent O C. Water dissolves many substances O D. Water is a compound DELL F2 F3 F4 F5 F6 F7 FB 17

A friend tells you that the “neon” in neon signs is a compound of neon and aluminum. Can your friend be correct? Explain.

- the accepted density of water at room temperature is approximately 1.0 gram/mL. a student conducted an experiment where water was pipetted into a graduated cylinder and then weighed on a scale. the student then calculated the density of water and based on the calculations the density was 1.15g/mL calculate the percent error based on this  1% 0% -13% 100% 15% -true or false. electromagnetic energy consists of packets of energy called electrons that travel in waves.    -hydrogen peroxide was added to a piece of potatoes contain the enzyme, catalyze, hydrogen peroxide was added to the potatoes and bubbles appeared to the presence of oxygen gas, if the hydrogen peroxide was removed and re-added to the potatoes, would bubbling occur again? explain why or why not.

Science Grade 5 Unit 4 2021 [23 Items] V Gordon, Terrell All Items 5. 6 P N> 4 8 9 10 11-20 Save Review Summary Exit Testing 5. A student tests an unknown substance that she believes to be a metal. Which of the following observations would indicate that the unknown substance is a metal? A.O It can break easily and is very brittle. B.O It can easily float in water. C. It is brown and dull. D. It is a good conductor of electricity. Time Remaining: 00:53:39 Copyright 2021 Illuminate Education, Inc. All Rights Reserved

-23 An oxygen atom has a mass of 2.66 x 10 g and a glass of water has a mass of 0.050 kg. Use this information to answer the questions below. Be sure your answers have the correct number of significant digits. What is the mass of 1 mole of oxygen atoms? Round your answer to 3 significant digits. How many moles of oxygen atoms have a mass equal to the mass of a glass of water? Round your answer to 2 significant digits. 0 x10 S

The energy of a particular color of violet light is 4.90×10-22 kJ/photon. The wavelength of this light is ____ nanometers.(109 nm = 1 m)

2. In a Mars Direct mission, the astronauts would return home in an Earth Return Vehicle (ERV) fueled by     methane and oxygen produced from terrestrial hydrogen and Martian CO2     helium-3 extracted from the lunar surface     finely-ground Martian rocks accelerated by an electromagnetic mass driver     cheap, traditional kerosene fuel brought from Earth   We might go back to the Moon someday to mine the lunar surface for an energy resource called     methane     antimatter     hydrazene     helium-3

Chemically active surfaces are seen on alumina-containing zeolites. Interpret this statement.

X-rays have a wavelength small enough to image individual atoms, but are challenging to detect because of their typical frequency. Suppose an X-ray camera uses X-rays with a wavelength of 8.63 nm. Calculate the frequency of the X-rays. Round your answer to 3 significant digits. PHz x10 X Ś

Every year Every second (1 year 365 days).

6 Kronos Workforce.. ervice inte... (Last Day Promotio... [References] Given the following data 2 CIF(g) +O2 (g) Cb O(g) +F20(g) 2 CIF3 (g) + 202(g) Cl2 O(g)+ 3F20(g) 2F2 (g) + O2 (g) 2F20(g) AH= 167.4 kJ AH=341.4 kJ AH=-43.4 kJ calculate A H for the reaction CIF(g) +F2 (g) CIF3 (g) AH= kJ Try Another Version 1 item attempt remaining Submit Answer

blue ink from three different pens appears to be the exact same color. explain how to determine whether the dyes are identical

X AND Z  Y AND Z  NONE OF THEM  ALL OF THEM  ONLY Z ONLY Y  ONLY X X and y

Choose the correct answer choice. Given the statement below, which choice best accounts for these observations?

Precipitation Transpiration Evaporation Bedrock Intiltration Run-Off Groundwater Lake What type of energy drives this cycle on Earth? O A. Chemical energy O B. Mechanical energy O C. Electromagnetic energy from the Sun O D. Gravitational potential energy F2 F3 F4 F5 F7