4. Which of the following statements correctly describe atoms? Select all that apply.
A)Atoms have mass,
B)Atoms are the basic unit of a chemical element.
C)Matter is made of atoms.
D)Atoms take up space.
Answers
Answer:
all of the above
Explanation:
adams take up space they take up mass they are the basic chemical unit and matter is made of adams
Answer:
All of them except "Elements are the basic unit of atoms."
Explanation:
I took the quiz :D
Related Questions
How can living things be classified? What are the criteria?
Answers
Answer: Scientists classify living things at eight different levels: domain, kingdom, phylum, class, order, family, genus, and species. In order to do this, they look at characteristics, such as their appearance, reproduction, and movement, to name a few. hope this helps can u give me brainliest
Explanation:
Answer:
All living organisms are classified into groups based on very basic, shared characteristics. organisms within each group are then further divided into smaller groups. the classification of living things includes seven levels. kingdom, phylum, classes, order, family, genus, and characteristics such as appearance, reproduction, mobility, and functionality are just a few ways in which living organisms are grouped together. these specialized groups are collectively called the classification of living things.
Explanation:
Hope this helped Mark BRAINLIEST!!!
There are 2 main types of _______. One is a _______, where electrons are shared between atoms. The other is an _______, where one atom loses an electron to become a _______ charged ion, and the other atom gains the elctron to become a _________ charged ion.
Answers
Hello..!
There are 2 main types of ions one is an atom where the electrons are shared between the atoms. the other is an electron where one atom loses an electron to become a neutral in a charged ion, and the other atom gains the electron to become a charged lon anion.
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Ions with a positive charge are known as cations. Those that are negatively charged are called anions.
¿Doubts? in the comments Greetings.
The two main types of bonds formed between atoms are ionic bonds and covalent bonds. An ionic bond is formed when one atom accepts or donates one or more of its valence electrons to another atom. A covalent bond is formed when atoms share valence electrons.
Which statement best describes how energy and matter move in a wave?
A
A wave transports energy without transporting matter.
B
A wave transports matter without transporting energy.
C
Neither energy nor matter is transported by a wave.
Answers
Answer:
A wave e transports energy without transporting matter
Answer:
the answer is A. a wave transpory energy without transporting matter
Which of the following statements fully describes what an object may do when it experiences unbalanced forces? Select the two best answers.
A. It may change directions.
B. It will move at a constant speed.
C. It may slow down.
D. It may slow down or speed up.
E. It will stay stationary.
Answers
Answer:b
Explanation:
List the five physical phase changes of matter and give one example for each.
Answers
Answer:Melting.
Freezing.
Evaporation.
Condensation.
Sublimation.
Explanation:
Answer: Examples for the five transformations previously given.
For the first four, we encounter common examples in everyday life, all to do with water:
Freezing - liquid to solid, e.g. water to ice, e.g. making ice cubes.
Melting - solid to liquid, e.g. ice to liquid water, melting ice cubes or snow flakes.
Condensation - gas to liquid, e.g. water vapor (gas) to liquid - water vapor in air (humidity) condenses to form liquid droplets on the outside of a cold beverage glass on a hot humid day; or cloud formation in the atmosphere.
Evaporation - liquid to gas, e.g. liquid water on clothes evaporates as clothes dry on clothesline or in dryer
While water can sublime under certain conditions of temperature and pressure, it is less evident in everyday life. Carbon dioxide however is a more common example.
Sublimation - solid to gas, e.g. "dry ice" disappearing. The visible smoke associated with dry ice is most likely just condensing water vapor in the air as the solid carbon dioxide cools the air.
Explanation:
3. An arrangement is shown below.
Earth
moon
sun
What effect does this arrangement have on the tidal range?
A. The tide is larger than normal because the gravitational forces of the sun and moon pull in the
same direction.
B. The tide is larger than normal because the gravitational forces of the sun and moon pull in
opposite directions.
C. The tide is smaller than normal because the gravitational forces of the sun and moon pull in
the same direction.
D. The tide is smaller than normal because the gravitational forces of the sun and moon pull in
opposite directions.
Answers
the tide is small then normal because the gravitational fore of the sun and moon pull in the same direction
Explanation:
a
d
Kathy is going to do an experiment in which she will grow bacteriain four prepared petri dishes:
a sample swabbed from her unwashed hands
a sample swabbed from her hands after washing them with regular soap
another sample from her unwashed hands
a sample taken after cleaning her hands with hand sanitizer
What do you think the results will be? Write down your predictions for which samples will show the greatest and least bacteria growth.
Answers
Unwashed ==> Most bacteria
Sanitizer == Will have less than Unwashed
Washed ==> least amount of bacteria
When silver coins are found in ancient shipwrecks, they are coated with a black crust. What question could you ask to help you decide whether the silver underwent a chemical change or a physical change?
Answers
can u guys answer this for me please
All of the following are inherited traits of organisms except for:
Fur color
Opposable thumbs
Ability to perform tricks
Pupil size
Answers
Answer:
Ability to perform tricks
Explanation:
Someone deleted my previous answer but I believe that it is the ability to perform tricks as that is the only non-physical trait. :)
Which statement accurately describes a temperate deciduous forest? (Select all that apply.)
They have no omnivores living there.
They have precipitation all year long.
They have four distinct seasons.
Then have ten months of winter.
Answers
20 points and brainiest if you answer in 5 mins with the right answer
How does a convex mirror form an image?
A) It bends the light toward a focal point.
B) It bends the light away from a focal point.
C) It bounces the light toward a focal point.
D) It bounces the light away from a focal point.
Answers
True or False: Organic substances are always made from the same four elements including carbon, hydrogen, oxygen, and nitrogen.
FALSE
TRUE
Answers
Answer:
Four elements, hydrogen, carbon, oxygen and nitrogen, are the major components of most organic compounds.Answer:
true
Explanation:
Identify the Lewis acid in this balanced equation:
(Picture for diagram)
A. N(CH3)3
B. BH3
C. (CH3)3N:BH3
Answers
Answer:
(CH3)3N:BH3 i pretty sure but I'm not sure
Choose the five physical tests for identifying rocks:
metamorphic
sedimentary
color
streak
hardness
luster
igneous
cleavage
Answers
1. Hardness
2. Luster
3. Color
4. Color
5. Streak
A balance and a graduated cylinder are used to determine the density of a mineral sample. The sample has a mass of 16 g and a volume of 2 cm3. What is the density of the mineral sample?
Answers
Answer:
8g/cm³
Explanation:
density is mass per unit volume , it is measured in grams per unit volume
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
What kind of rocks would you expect to see on Mars? What evidence supports your response?
Answers
What is the charge on the Cr in Cr2O72-
Answers
Answer:
+6.
Explanation:
So, a chromium atom here has an oxidation number of +6.
How does an atom change if all of its electrons are removed?
p.s. I'll mark the first answer the brainliest if it is correct! ;)
a. The atom’s volume increases.
b. The atom’s mass increases.
c. The atom becomes positively charged.
d. The atom becomes negatively charged.
Answers
c. The atom becomes positively charged
if the electrons are removed it means theres no longer a negative charge to balance the positive charge of the protons in the atom
HEEEELP!!! THIS IS DUE TODAY
What is one of the most important forms of energy? Give two examples of how this type of energy is used in our lives.
Answers
Refrigeration used electrical energy.
Answer:
"There is no God but Allah, and Muhammad is his messenger." This is the basic statement of the Islamic faith: anyone who cannot recite this wholeheartedly is not a Muslim. When a Muslim recites this they proclaim: That Allah is the only God, and that Muhammad is his prophet.
I hope u find the right path
Explanation:
a
a decrease in the number of zebra mussels along the waterways
b
an increase in the number of zebra mussels along the waterways
c
no effect because more time is needed to determine an outcome
d
no change in the number of zebra mussels infecting the waterways
Answers
Which of the following would occur if the Thrush population was to suddenly decrease?
a
The population of Eagles would increase
b
The population of Eagles would decrease
c
The population of Dragonfly would decrease
d
The population of corn would increase
Answers
Reasoning: Since Eagles directly eat Thrush, their populations would decrease.
The other answers are wrong because with the first choice, Eagles would not increase in population if one of their food sources were removed. For the third choice, Dragonflies wouldn’t increase. Since Thrush eat Dragonflies, the disappearance of Thrush wouldn’t hurt the population of Dragonflies. Lastly, The last option is wrong because corn isn’t reliant on animals to survive. If Thrush disappear, corn will not be affected. This leaves B. to be the answer.
I just need help all I need is the answer please some one
Answers
Answer: The correct fill-in-the-blank answers are:
1. through binary fission (already filled in)
2. be resistant to penicillin
3. through asexual reproduction.
4. cell replicates before
5. a simpler process
Explanation:
The correct fill-in-the-blank answers are:
1. Bacteria reproduce through binary fission (already filled in)
2. A parent bacterial cell is able to survive in the presence of antibiotic penicillin. Subsequent generations from this parent will be resistant to penicillin
3. Something that potatoes and bacteria have in common is that they both reproduce through asexual reproduction.
4. In asexual reproduction DNA from the parent cell replicates before it produces daughter cells.
5. Asexual reproduction is a simpler process than sexual reproduction.
Know more about Bacteria: https://brainly.com/question/6941760
In an electrical wire, if instead of copper, plastic wire is used. Would it conduct electricity?Justify your answer.
Answers
Answer:
No, a plastic wire would not conduct electricity. This is because plastic is an insulator that does not allow electric current to flow through it. In a wire, electrical conductivity is provided by the movement of charged particles - typically, electrons. Copper is an excellent conductor of electricity because it has a high number of free electrons that are not bound to atoms and can move through the wire very easily. However, in a plastic wire, the tightly bound electrons of its atoms do not allow for the free flow of charges, thus preventing the passage of electric current.
Oil is a powerful source of energy used for cars, machines, and many other purposes. While studying sources of energy that could replace the use of oil, a student thinks about solar power, wind power, nuclear power, and electric batteries. The students asks,"Which type of source will waste the least energy and provide the most energy in all situations?"
Which best describes why a scientist would ask a different question than this one?
O The question asks about subjective personal preferences regarding energy.
O The question focuses on the objective measurements of amounts of energy.
O The question has too wide of a focus, as though all situations can be studied at once.
O The question is focused on the future and finding new answers about changing needs.
Answers
Answer:
C
Explanation:
scientists usually focus on one specific problem, rather than a whole range. so the answer would be that it's too wide a focus.
btw this is where the crown is on the bottom of the question
Answer:
c
Explanation:
To make a 450g solution with a mass by mass concentration of 7%, how much salt and water do you need to mix?
Answers
Answer:salt: 31. 5g
water: 418. 5g
Explanation
Answer:
salt: 31. 5g
water: 418. 5g
Explanation:
Ms. Hu was teaching her students about Earth days and Earth years. She set up this model. How should Ms. Hu move the parts of her model to illustrate an Earth day? Describe what an Earth day is in terms of the movement of the Earth/Sun.
(Earth Science)
Answers
Explanation:
Earth spins around its axis, just as a top spins around its spindle. This spinning movement is called Earth's rotation. At the same time that the Earth spins on its axis, it also orbits, or revolves around the Sun. This movement is called revolution.
In self heating cans, the chemicals in two compartments react with each other and forms……..
Answers
calcium hydroxide : chemicals are Quicklime and water
Place the following taxonomic ranks in order from most specific to least specific. A) Order; B) Phylum; C) Family
Answers
The taxonomy is a branch of biology which classifies the living things. It was given by Carolus Linnaeus. The taxonomic ranks in order from most specific to least specific is family, order and phylum.
What is Taxonomic Hierarchy?The process of arranging different kinds of organisms into successive levels of the biological classification either in a decreasing or an increasing order from kingdom to species and vice versa is known as Taxonomic hierarchy.
Each level of the hierarchy is defined as the taxonomic category or rank. In this system of classification, Kingdom is always ranked the highest which is then followed by division, class, order, family, genus and species.
The correct order of Taxonomic Hierarchy is:
Kingdom - Phylum - Class - Order - Family - Genus - Species.
The species is the lowest level of the taxonomic Hierarchy. This can be further divided into sub-species.
To know more about Taxonomic Hierarchy, visit;
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