3. Which of the following are properties of ionic compounds? Select all that apply.
A)Liquid at room temperature
B)High melting point
C)Conductive when dissolved in water and in molten (liquid state)
D)Solid at room temperature
Answers
Answer : The correct options are, (B), (C) and (D)
Explanation :
Ionic compound : It is defined as the compound that is formed when a metal cation bonded with non-metal anion. The metal cation and non-metal anion bonded with an electrostatic force of attraction.
The properties of ionic compounds are :
Ionic compounds are brittle and hard. They breaks easily into small pieces.
They have high melting point and boiling point.
They conduct electricity in liquid state not in solid state.
They are solids at room temperature.
Hence, the correct options are, (B), (C) and (D)
The answer options that are properties of ionic compounds include:
B. High melting point.
C. Conductive when dissolved in water and in molten (liquid state).
D. Solid at room temperature.
An ionic compound refers to a crystalline, solid substance that contains neatly packed and oppositely charged ions, which are typically bonded through electrostatic forces.
In Chemistry, some examples of ionic compounds are:
Sodium oxide.Aluminum chloride.Potassium bromide.Lithium chloride.Sodium chloride.Additionally, all ionic compounds have the following properties:
1. They are crystalline, solid at room temperature.
2. They have a high melting point.
3. When dissolved in water and in molten (liquid state), they are able to conduct electrical charges.
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Related Questions
What is causing the increasing amount of CO2 in the atmosphere? What could be done about it?
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Please help with questions 11-13! I’ll give brainliest
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11- 3
12- 4
13- 2
11- 3
12- 4
13- 2 hope this helps
What are the physical properties of the cookie/cracker? List 3 or more.
Answers
Answer
cookie
shape:circle
texture: bumpy rough on side
color:brown
size: bigger than a quarter
Explanation:
I cant see it so just describe the color shape size texture
Answer:
1. Delicious
2. Soft
3. Cronchyy (ik its crunchy )
4. Best foods you will ever eat
Explanation:
Try it for yourself!
a 2 cm cube made of acrylic has a mass of 9.7 g. What is the density of the acrylic?
Answers
Answer:
here
volume of cube = l^3
=2cm^3
=8cm^3
now,
mass=(9.7÷1000)kg
=0.0097kg
volume=8cm^3÷100=0.08
we know that,
density=mass/volume
= (0.0097/0.08)kg/m^3
= 0.12125kg/m^3
Explanation:
the formula to calculate volume of cube is l^3 so here we find the volume of cube using this formula and then we convert gram into kilogram then convert cm into m then by applying the formula of density we find it density
A 2 cm cube made of acrylic has a mass of 9.7 g. The density of the acrylic is 0.12125 kg m3
What is density?Density is the mass of per unit volume.
\(Volume of cube = l^3\\=2cm^3\\=8cm^3\)
mass 9.7 kg, converted into kilograms = 0.0097kg
\(Volume \;= \dfrac{8cm^3}{100} = 0.08\)
Calculating the density
\(Density = \dfrac{mass}{volume} \\\\\dfrac{0.0097}{0.08} = 0.12125\;kg\;m^3\)
Thus, the density of the acrylic is 0.12125 kg m^3.
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What is common among elements in the same group?
Answers
Answer:elements are arranged in increasing atomic number from left to right
Explanation:
Answer:elements are arranged in increasing
atomic number from left to right
Please help me por favor :'(
Answers
PLS HELP I'LL GIVE 50 POINTS+ BRAINLIEST TO THE FIRST PERSON WHO WRITES ME AN ESSAY
Part 3: Writing to the People of Westfield
Dr. Yung wants you to explain what the reddish-brown substance is to the people of Westfield. As you write your argument, remember to:
state your claim about the identity of the reddish-brown substance.
use evidence from both your observations and the atomic-scale models to support your claim.
include the vocabulary words listed below in your argument.
Chapter 1 Question: What is the reddish-brown substance in the water?
Claim 1: The reddish-brown substance is the same as the substance that makes up the pipes.
Claim 2: The reddish-brown substance is the same substance as the fertilizer.
Claim 3: The reddish-brown substance is not the same as either the fertilizer or the substance that makes up the pipes.
Word bank: atom, model, property, substance
Answers
Answer:
Dear People of Westfield,
As you may be aware, there has been a lot of concern about the reddish-brown substance found in the water supply. After conducting extensive research and analysis, I am here to share my findings with you.
Based on my observations and the atomic-scale models, I can confidently state that the reddish-brown substance is not the same as either the fertilizer or the substance that makes up the pipes. In fact, the reddish-brown substance has its own unique set of properties that distinguish it from these other substances.
One of the key pieces of evidence supporting this claim is the atomic-scale model of the reddish-brown substance. This model shows that the substance is made up of its own distinct atoms arranged in a specific way. These atoms have unique properties, such as their size and charge, that differentiate them from the atoms that make up the fertilizer and the pipes.
Furthermore, my observations of the reddish-brown substance also support this claim. I have noticed that the substance behaves differently than both the fertilizer and the pipe material. For example, the substance dissolves at a different rate and reacts differently to various chemicals.
In conclusion, it is clear that the reddish-brown substance in the water supply is its own unique substance, with its own distinct properties and atomic makeup. It is not the same as either the fertilizer or the substance that makes up the pipes. I hope that this explanation provides some clarity and reassurance to the people of Westfield.
Explanation:
give me brainliest
I am writing to address the recent concerns about the reddish-brown substance found in your water. After careful observation and analysis, I have come to the conclusion that the reddish-brown substance is not the same as either the fertilizer or the substance that makes up the pipes.
My claim is based on the evidence from both my observations and the atomic-scale models. The atomic-scale models show that every substance is made up of atoms that have unique properties. These properties determine the characteristics of the substance. After analyzing the reddish-brown substance, I found that its properties are different from both the fertilizer and the substance that makes up the pipes.
Furthermore, the reddish-brown substance has a unique set of properties that are not found in either the fertilizer or the substance that makes up the pipes. These properties include its reddish-brown color, its texture, and its chemical composition. These properties are consistent with a different substance that is not related to either the fertilizer or the substance that makes up the pipes.
In conclusion, I believe that the reddish-brown substance is not the same as either the fertilizer or the substance that makes up the pipes. My claim is based on the evidence from both my observations and the atomic-scale models. The properties of the reddish-brown substance are unique and do not match those of either the fertilizer or the substance that makes up the pipes.
Thank you for your attention to this matter.
Sincerely,
[Your Name]
What is necessary for a metallic bond to form?
A) The atoms should be in close proximity.
B) The atoms should be far apart.
C) The electrons must be attracted to each other.
D) The nuclei must contain neutrons.
Answers
Name and Title:
Include your name, instructor's name, date, and name of lab.
Objectives(s):
In your own words, what is the purpose of this lab?
Hypothesis:
In this section, please include the predictions you developed during your lab activity. These statements reflect your predicted outcomes for the experiment.
Procedure:
The materials and procedures are listed in your virtual lab. You do not need to repeat them here. However, you should note if you experienced any errors or other factors that might affect your outcome. Using your summary questions at the end of your virtual lab activity, please clearly define the dependent and independent variables of the experiment.
Data:
Record the elements present in each unknown astronomical object. Be sure to indicate “yes” or “no” for each element.
Hydrogen Helium Lithium Sodium Carbon Nitrogen
Moon One
Moon Two
Planet One
Planet Two
Conclusion:
Your conclusion will include a summary of the lab results and an interpretation of the results. Please answer all questions in complete sentences using your own words.
Using two to three sentences, summarize what you investigated and observed in this lab.
Astronomers use a wide variety of technology to explore space and the electromagnetic spectrum; why do you believe it is essential to use many types of equipment when studying space?
If carbon was the most common element found in the moons and planets, what element is missing that would make them similar to Earth? Explain why. (Hint: Think about the carbon cycle.)
We know that the electromagnetic spectrum uses wavelengths and frequencies to determine a lot about outer space. How does it help us find out the make-up of stars?
Why might it be useful to determine the elements that a planet or moon is made up of?
Answers
Can anyone help me with these science questions?
1. What is collision theory?
2. How does collision theory relate to factors that affect reaction rate?
3. Define reaction rate.
4. List factors that influence the rate of a chemical reaction.
5. Choose one of the factors you listed in your answer to question 2, and explain how it affects reaction rate.
Answers
Answer:
This is where google becomes your best friend but I got you
Explanation:
1. A theory used to predict the rates of chemical reactions, particularly for gases. The collision theory is based on the assumption that for a reaction to occur it is necessary for the reacting species (atoms or molecules) to come together or collide with one another.
2. Collision theory says that chemical reactions occur by the collisions between atoms and molecules, so the more collisions the faster the rate of the chemical reactions.
3. The speed at which a chemical reaction proceeds. It is often expressed in terms of either the concentration (amount per unit volume) of a product that is formed in a unit of time or the concentration of a reactant that is consumed in a unit of time.
4. There are four main factors that can affect the reaction rate of a chemical reaction:
Reactant concentration. Increasing the concentration of one or more reactants will often increase the rate of reaction. ...
Physical state of the reactants and surface area. ...
Temperature. ...
Presence of a catalyst.
Answer:
1. a theory that says a chemical reaction takes place when particles of the reactants collide with sufficient energy to initiate the reaction
2. Increasing the concentration of the reactants, the faster the particles will collide so the reaction rate will be faster
3. a measure of how fast a reaction takes place
4. Temperature, presence of a catalyst, reactant concentration, surface area
5.
Explanation:
not sure how to do number 5 sorru
help me fill this page with the right answer please (17 lines minimum please)
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HELP! 100 POINTS! A cinder block is pulled 0.50 meters to the right in 3 seconds. What is the block's average speed to the nearest hundredth of a meter per second (m/s)?
Answers
The average speed of the blocks are 0.36 m/S.
Explanation:
Average speed is defined as the ratio of distance covered per unit time. So if it is said that blocks are pulled to 0.9 m in the right side. This means the blocks cover a distance of 0.9 m from the origin and that distance is covered in 2.5 s. Thus, the average speed can be calculated from the change in speed
with respect to time. As at time t = 0, the speed is
also zero, and at time t = 2.5 s, the speed will be
Speed =
0.9 = 0.36
2.5
Since, in this case, the speed is equal to the average speed of blocks. So the average speed of the blocks will be 0.36 m/s.
2.5
Since, in this case, the speed is equal to the average speed of blocks. So the average speed of the blocks will be 0.36 m/s.
help pls, ty.
The law of conservation of matter states that matter can be neither created nor destroyed. Your friend shows you the following chemical equation: CaCO3,CaO+CO2, He says that because the oxygen atoms are split between two different molecules in the products, the equation does not support the law of conservation of matter. Is your friend right? Explain your answer.
Answers
Answer:
no
Explanation:
no your friend is not right, everything is supported by the law of conservation of matter, just because the oxygen atoms are split doesn't mean it isn't supported by this
A student is looking at a model of a neutral atom. The model shows that the atom has 19 subatomic particles in the nucleus. Ten of those subatomic particles do not have a charge.
Which statement about the model of the atom is true?
Answers
Answer:
The atom has 9 electrons
Explanation:
I don't see a list of possible choices, but as for what I can guess this is the correct answer. An atom with the same number of electrons as protons will be neutral, as stated in the problem. If this isn't what you are looking for. some other possible answers are the atomic weight will be 19, the atom has 10 neutrons, the atom has 9 protons, and the atom is a fluorine atom.
An atom generally consists of three important subatomic particles. They are protons, neutrons and electrons. Here the given atom has 19 subatomic particles, 10 of them are chargeless. So the atom is Fluorine.
What are subatomic particles?The particles which are smaller in size than an atom are defined as the subatomic particles. The positively charged subatomic particles are called the protons whereas the negatively charged particles are called the electrons. The neutrons does not have a charge.
The number of protons or electrons in an atom is the atomic number. Here the atomic number of Fluorine is 9, so it has 9 protons and electrons. The atomic mass of fluorine is 19.
The number of neutrons in Fluorine is given as:
No: of neutrons = Mass number - Atomic number
19 - 9 = 10
Thus the given atomic model is of Fluorine.
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Question This is a Science Test 15 POINTS OR MORE POINTS!
The following picture contains four beakers with four different colored solutions, light blue to dark blue. Which solution is the most concentrated?
A. the second solution from the left
B. the first solution (left-most)
C. the fourth solution from the left (right-most)
D. the third solution from the left
Answers
Answer:
darker means more concentrated!!
the answer is d
Explanation:
EX:the more color you put in frosting the darker it gets
Design an investigation that supports the claim that an increase in voltage OR an increase in the number of coils in an electromagnet, has an affect on the strength of the electromagnet. Be sure to include:
1. Problem/Question
2. Possible Data Table/Chart
3. Conclusion paragraph including data AND the effect of the increase in voltage or number of coils.
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Answer:i dont know
Explanation:
Why are cellular respiration and photosynthesis opposite processes?
This is in science for 7th grade
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Answer:
photosynthesis removes carbon dioxide from the atmosphere while respiration puts back carbon dioxide.
Explanation:
hope this helps
Try to make it that force of friction is so much that the object's cannot be accelerated.
How can you do this?
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Answer:
high gravity I hope it helps ️
Explanation:
High gravity mean's high fraction
Which form of energy is used as a roller coaster moves down the track?
a roller coaster moving down a track
Chemical energy
Light energy
Mechanical energy
Solar energy
Answers
Answer:
Mechanical energy
Explanation:
How does mercury find its way into our ecosystems?
a.) Found in paints
b.) Found in solder joints of copper
c.) Burning coal
d.) Insulation in older houses
Answers
Which element is represented by this model?
Be; Beryllium
N; Nitrogen
C; Carbon
F: Fluorine
Answers
Answer: C; Carbon
Explanation: The model is showing it has 6 electrons, 6 protons, and 6 neutrons. Therefore the element, carbon.
Answer:
Carbon
Ok it needs more characters
explain one or two things that adversely (negatively) affect the Earth's environment. How do you know that these things you're discussing are bad for the world around us?
Answers
Answer:
Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.
Answer:
Hello! The main thing I will be talking about today is two things that negatively affect the Earth's environment. Humans have impacted the physical environment is many ways, two being, overpopulation. Overpopulation is becoming a problem in this world. Accidental births are the main reason. Overpopulation can cause economic problems, over-farming, deforestation, and even water polluting. Second thing is, burning toxic fumes, and creating pollution. Pollution is a very, very bad thing. It can cause the atmosphere to fill up with fumes which aren't good for plants, humans, or animals. Pollution can take the form of chemical substances or energy, such as noise, heat, or light. There are four main types of air pollution sources: mobile sources, such as cars, buses, planes, trucks, and trains. stationary sources, such as power plants, oil refineries, industrial facilities, and factories. area sources, such as agricultural areas, cities, and wood burning fireplaces. I know the things I'm discussing are bad because, slowly the Earth is taking impact because of us. We need to make a better change and help our Earth.
Only answer if you know 100% its correct. this means if your not sure, don't answer.
Answers
Answer:
D
Explanation:
The last one on there
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The statement which best describes solar electric energy is ~
Sunlight is converted to electricity in a photovoltaic cell.
In this process, the photovoltaic cell converts all the Sola energy derived from Sunlight into electricity.
How can a charged balloon attract a wall without any contact?
The positive charges of the uncharged wall move to the outside.
The wall changes shape and the positive charges move to the inside.
The negatively charged balloon repels and moves away from the wall.
A positive charge in the balloon attracts the negative charges in the wall.
Answers
Answer:
Because it is charged with the opposite type of energy to the wall.
Answer: A
Explanation: The positive charges of the uncharged wall move to the outside.
Charles Darwin made many observations of organisms in the world around him. While on a voyage around the world, Darwin discovered fossils that looked similar to living organisms. Which of the following would Darwin suggest based on his observations?
Answers
Answer: x=9999999
Explanation: trust me bro
How does an increase in altitude affect the climate?
Answers
Answer:
As you increase in elevation, there is less air above you thus the pressure decreases. As the pressure decreases, air molecules spread out further (i.e. air expands) and the temperature decreases. If the humidity is at 100 percent (because it's snowing), the temperature decreases more slowly with height.
Explanation:
Hopes this helps and plz mark me brainliest!
I'm in the shower right now just tell me something interesting to study and learn about ill give 100 points
Answers
Answer:
Study forms of religion in ancient civilizations
Explanation:
olmecs disappearance or Celtic culture interesting
Study of global warming
Simple and complex molecules are similar in that they both involve ____ atoms A water B simple C bonded D complex
Answers
Answer:
The answer is C.
Explanation:
Please give brainliest
Answer:
D
Explanation:
complex, in chemistry, a substance, either an ion or an electrically neutral molecule, formed by the union of simpler substances (as compounds or ions) and held together by forces that are chemical (i.e., dependent on specific properties of particular atomic structures) rather than physical.
please help
I've finished all my other questions but I'm really stuck on these two
Answers
Answer: 66.66 / 66.67 / 66 2/3 hydrogen 33.33 / 33 1/3 oxogen
for question e
in grams of course
hydrogen: 33.33/33 1/3 oxogen
PLSSSSSSSS HELP MEEEEEEEEEEEEEE
Answers
Answer: The answer to your question is B,C,D.
Answer: i think A, B, D?
Explanation: