Answers
Answer:
false, true and i dk what the other answer choices are for the 3rd questions
Explanation:
Related Questions
which statement best describes what occurs during a chemical reaction?
a) the bondsman reactants break so that elements can rearrange down form new products
b)bonds within the nucleus of reactants atoms are broken and rearranged to form new product atoms
c) the bonds and products break so that elements can rearrange and form new reactants
d)reactants atoms are destroyed releasing energy which is used to create new product atoms
Answers
Answer:
bonds within the nucleus of reactants atoms are broken and rearranged to form new product atoms
Someone pls help me I will make you brain
Answers
Answer:
the second answer
Explanation:
Answer:
A Erosion of structures and buildings
Explanation:
Metals are good conductors of current.
Answers
Answer:
absolutely correct....................
Which two elements are in the same group based on their atomic model?
Please help me with this ASAP.
Answers
Answer: 1 and 2
i think
Explanation:
NEED HELP ASAP. Write a statement explaining your claim about whether or not the equation is correctly balanced.
Then, provide evidence that supports your claim about whether or not the equation is correctly
balanced. Next, connect your evidence to your claim about the equation.
Answers
Answer:
Explanation:
Hi! can you add the choices.
NO LINKS PLS HELP I WILL MARK THE BRAINIEST ANSWER
Answers
Answer:
Option a
Explanation:
simple
Answer:
The two solutions do not react with each other unless the water is boiled off, then the two will decompose.
Explanation:
What reasons did the Pilgrims give for creating the Mayflower Compact?
to create a colony, establish a new church, and provide a long life for their children
to organize a new nation and create order, and for financial gain
to organize themselves, guarantee a long life for the colony, and achieve their goals in setting up the colony
“[To] Combine ourselves together into a Civil Body Politic, for our better ordering and preservation and furtherance of the ends aforesaid”
—Mayflower Compact
Answers
Answer:
To organize a new nation and create order and for financial gain.
Answer:
C the person above is wrong its
Explanation:
to organize themselves, guarantee a long life for the colony, and achieve their goals in setting up the colony
Explanation:
is it true or false when the there are too many protons making the nuclei unstable, it will undergo a positron decay and a proton will turn into a neutron.
Answers
Answer:
True
Explanation:
As the number of protons in the nucleus increases, the number of neutrons needed for a stable nucleus increases even more rapidly.
Which of the following elements has the smallest atomic radius?
Group of answer choices
Nitrogen
Oxygen
Fluorine
Carbon
Answers
Answer:
Fluroine
Explanation:
Answer:
Fluorine
Explanation:
Nitrogen atomic radius: 155 pm
Oxygen atomic radius: 152 pm
Fluorine atomic radius: 147 pm
Carbon atomic radius: 170 pm
Therefore, fluorine has the smallest atomic radius.
write the formulas of alkanes that contain three, five, seven, and nine carbon atoms
Answers
Answer:
Explanation:
Name Number of Carbon Atoms Molecular Formula
methane 1 CH4
ethane 2 C2H6
propane 3 C3H8
butane 4 C4H10
which two particles would be attracted to each other?
Answers
Answer: protons and electrons.
Explanation:
Help! Will go be brianleist
Answers
Answer:
d
Explanation:
Answer: c
Explanation:
Each mineral group has a distinctive chemical feature such as
a. oxides are a metal combined with oxygen
b. sulfides are a metal combined with sulfur and oxygen
c. halides are a salt combined with a metallic atom
d. phosphates are made of phosphate polygons
Answers
Answer:
A
Explanation:
6. Potential energy can be
transformed into kinetic energy
of force is applied to the object.
True or false?
Answers
Answer:
true
Explanation:
because there is love in the universe and we converse in each others mind soul brain time stone
Calculate the number of moles of alkali in 25cm3 of NaOH solution used.
Answers
Answer:
0.001mol
Explanation:
volume (NaOH) =25cm³ =0.025dm³
molar volume = 22.4dm³
n = V = 0.025 = 0.001mol
Vm 22.4
Unless otherwise instructed, you may refer to the periodic table in the Chemistry: Problems and Solutions book for this question.
Which element belongs to the p-block?
cobalt
oxygen
rubidium
hydrogen
Answers
There is the s,p,d and f blocks, from groups 1-2 that is the s block, 13-18 that’s the p block, 3-12 is the d block and the f would be lanthanide(#57-71) and actinide (#89-103).
How do anion formation and valence electrons relate?
Answers
Answer:
Atoms gain valence electrons to form anions.
Explanation:
Someone pls help me I will make you brain
Answers
Answer:
Thanks but I already have a brain LOL.
Your answer is D cooler temperatures.
Melting permisfrost actualy is a source of greenhouse gas because it realeses water which could in turn be vaporized eventualy.
a person dies, and within hours, the skeletal muscles develop a locked contraction known as rigor mortis. calcium ions leak from the sarcoplasmic reticulum into cytoplasm. from your knowledge of cross bridge cycling, what best explains this rigor?
Answers
Rigor mortis is the stiffening of the body after death. After death, the body begins to get cold. From about two to six hours after death, the muscles start to stiffen, probably because the actin and myosin filaments of the muscle slide into each other. The rigor mortis starts at the eyelids, jaw and neck and then slowly spreads to all parts of the body within six hours.
Contrary to popular belief, rigor mortis will occur more quickly in high ambient temperatures than in cold conditions. This is because the underlying chemical reaction occurs faster at higher temperatures.
Learn more in https://brainly.com/question/14139041
70 points!!!! will mark the brainliest,
ANSWER ASAP PLS??????????????
Answers
Answer:
I believe it's A.
Explanation:
Answer:
option C
Explanation:
There are 2 types of changes
Physical change :- The physical properties are changed and its temporary.Chemical change :- The chemical properties are changed and its permanent.what is responsible for changes in the state of matter?
and how are
the molecules of a liquid different from that of a solid? PKSS HELOOOÑLPPPP
Answers
Answer:
Temperature and pressure are the two factors which are responsible for change in state of matter.
Solid – In a solid, the attractive forces keep the particles together tightly enough so that the particles do not move past each other. ... In the solid the particles vibrate in place. Liquid – In a liquid, particles will flow or glide over one another, but stay toward the bottom of the container.
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Which hybrid orbitals overlap to form the sigma bonds between the indicated atoms in xanthine?
Answers
Many nitrogen and carbon atoms can be found in the structure of a heterocyclic molecule called xanthine, which is present in many biological systems.
The development of a sigma bond between these atoms is an essential component of its binding. A special example is the sigma bond between the nitrogen atom and the neighboring carbon atom. In the context of this sigma bond, the hybridization state of nitrogen can be either [tex]\rm sp^2[/tex]or [tex]\rm sp^3[/tex], and the hybridization state of carbon can be [tex]\rm sp^3[/tex]. A sigma bond is formed when the hybrid orbitals of carbon and nitrogen, which are each [tex]\rm sp^2[/tex] hybridized and [tex]\rm sp^3[/tex] hybridized, overlap. A strong covalent bond can develop when the [tex]\rm sp^2[/tex] hybrid orbitals of nitrogen and carbon line up. This allows electron sharing.
Learn more about sigma bond, here:
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Which of the following properties is a chemical property?
Answers
Answer:
flammability, toxicity, acidity, reactivity are some examples.
sorry you left out your options.
Answer:
Where are the options
Explanation:
Can you be a little more specific about your question?
Equation between Mg and H2O
Answers
Answer:
Mg + 2H2O → Mg(OH)2 + H2, is normally sluggish, but it becomes reasonably rapid when a milled composite of powdered magnesium metal and powdered iron (1−10 mol %) is used with sodium chloride solutions.
What evidence is there to support the theory that strong nuclear force is greater than electromagnetic force?
A: Electrons are attracted to protons.
B: Protons repel other protons.
C:The nucleus holds the protons together.
D:Protons and neutrons are attracted to each other.
Answers
Answer:
The electromagnetic force is a long range force which acts of charged particles. Like charges repel and unlike charges attract. ... The strong nuclear force is very short range and can only bind adjacent protons and neutrons. The electromagnetic force is long range.
Explanation:
how does the advancement of medical technology increase the number of medical ethical issues that arise?
Answers
Answer:
People are getting richer and richer as technology advances, this may make it so that some people are getting treated unfairly. Signs of little money may support the reason that you are not getting the help you need; this means that health problems would arise more, resulting in an unfair lifestyle.
Give two other examples each to acidic and basic oxides
Answers
Answer:
Acidic oxide, so², So³, Co², Cl²O7
Basic oxide: CaO, MgO, Na O
Explanation:
An oxide that combines with water to give an acid is termed as an acidic oxide. The oxide that gives a base in water is known as a basic oxide.
Which sequence is used to separate a soluble salt from a mixture of a soluble and an insoluble
salt?
A
add solvent, heat the mixture, crystallise the mixture
add solvent, heat the mixture, filter, crystallise the filtrate
B
C
heat the mixture, filter, crystallise the filtrate
heat the mixture, filter, add solvent, crystallise the filtrate
D
Answers
Gravity relates to a stream's ability to erode and deposit material by causing water to flow faster down a steep slope. True or False
Answers
Answer:
true
Explanation:
pls help noww
Just want to see who's the smartest here
promise to tag u as brainliest
Answers
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
1. The equation representing the equation is ~
[tex] \mathrm{Na + Cl\rightarrow NaCl}[/tex]
The given reaction is a redox reaction because there's a transfer of electron from Sodium (Na) to chlorine (Cl)
where sodium is oxidized (due to loss of electron) and chlorine get reduced (due to gain of electron).
2. Sodium is a highly reactive element which belongs to the 1st group of periodic table, hence it can catch fire if it is kept free in atmosphere. so in order to prevent that it is stored in kerosene oil, which doesn't let Sodium come in contact with air .