lithium oxide+sulphuric acid
Answer:
sulfurous acid with lithium hydroxide to form water and lithium sulfite. The balanced reaction equation is b. H2SO3(aq) + 2 LiOH(aq) → 2 H2O(l) + Li2SO3(aq).
li2so4+h20 (hope it helps )
Pls helllllpppppp!!!!!
how was the interior of the atom was experimentally dicovered?
Answer:
Thomson's experiments with cathode ray tubes showed that all atoms contain tiny negatively charged subatomic particles or electrons. Thomson's plum pudding model of the atom had negatively-charged electrons embedded within a positively-charged "soup."
What observations can you make about this group of people? Name one inference you can make from your observations.
Answer:
they are funny and unite.
Thank You
Scientists test their ideas about things they cannot observe directly by building
Answer:
yes
Explanation:
Testing scientific ideas
Testing Ideas. Testing hypotheses and theories is at the core of the process of science. ... match actual results observation, that lends support.
mass=35g
density=5 g/cm3
what is the volume?
[tex]\large \mathfrak{Solution : }[/tex]
given values :
mass = 35 g
density = 5 g/cm³
we know that :
[tex] \boxed{density = \dfrac{mass}{volume} }[/tex][tex]5 = \dfrac{35}{vol} [/tex][tex]vol = \dfrac{35}{5} [/tex][tex]volume = 7 \: cm {}^{3} \: or \: 7 \: litres[/tex]the process by which charged plasma particles
revert back to a gas
Answer:
Plasma, in physics, an electrically conducting medium in which there are roughly equal numbers of positively and negatively charged particles, produced when the atoms in a gas become ionized. It is sometimes referred to as the fourth state of matter, distinct from the solid, liquid, and gaseous states.
_____________is when the body is in an erect postion with feet slightly apart and your palms are facing forward with the thumbs pointed away from the body.
Answer:
anatomical position is the answer
8.7351 x 10-3 to ordinary notation:
What is 2.4 in scientific notation ?
Answer:
2.4 × 10-1
Explanation:
Does dried coconut give blue black color when iodine solution is added in it.
Answer:
I cant give a 100% answer but it will give a black color when low starch
Explanation:
Iodine test is used to determine the presence of starch in food items. If iodine is added to any food item and it causes the food item to turn to a blue-black color
mark brainiest please
7) Explain how the atomic number of an element identifies the element.
Answer:
The atomic number or proton number (symbol Z) of a chemical element is the number of protons found in the nucleus of every atom of that element. The atomic number uniquely identifies a chemical element. ... The sum of the atomic number Z and the number of neutrons N gives the mass number A of an atom.
Answer:
Atoms of each element contain a characteristic number of protons. In fact, the number of protons determines what atom we are looking at (e.g., all atoms with six protons are carbon atoms); the number of protons in an atom is called the atomic number.
Explanation:
pha 1000ml dung dịch natri hydroxyd xấp xỉ 0.1N. Xác định độ chuẩn bằng 10ml đ acid hydroclorid 0.1N có K=0.950 hết 11ml dung dịch natri hydroxyd vừa pha
a)tính hệ số hiệu chỉnh K của dung dịch natri hydroxyd
b)tính toán để điều chỉnh nồng độ 990ml dung dịch natri hydroxyd
Answer:
please translate to English so I can help
Explanation:
the reason is bc I cant read this so jus comment in English and I'll reply the answer
Describe what happens to the arrangement and movement of particles when a substance boils.
Answer:
When boiling a substance, the particles obtain more kinetic and potential energy from the heat being delivered. The kinetic energy means that the particles starts moving more intensely, and the potential energy means that the particles start to move away further from each other, which means the substance expands in volume.
Explanation:
When a liquid is heated, the particles gain energy and begin to move faster and faster, expanding the liquid. As the liquid warms, the most energetic particles at the surface escape as vapor from the surface.
What are particles?A particle is a small localized object to which several physical or chemical properties, such as volume, density, or mass, can be assigned in the physical sciences.
Atoms are small units of matter that contain a number of particles known as subatomic particles. The term particle, on the other hand, refers to any small object.
As a result, the primary distinction between atoms and particles is that atoms are small units composed of multiple particles, whereas particles are minute portions of matter.
When a fluid is subjected to heat, the particles acquire energy and start moving extremely fast, causing the liquid to expand.
The much more energetic particles at the exterior getaway as vapor phase from the surface as the liquid warms.
Thus, the arrangement and movement of the particles gets disturbed when a substance is boiled, and it gets escaped as vapor.
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Which one is NOT the name of a measurement system? (1 Point) International System of Units Metric System Spanish System British System
Spanish System is not the name of a measurement system.
WHAT IS A MEASUREMENT SYSTEM:
System of measurement refers to a collection of units of measurement and their corresponding rules. These systems are considered to be standard for measuring units. The system of measurements recognized are as follows:The international system of units (S.I units)The metric systemThe British imperial systemTherefore, the SPANISH system is not one of the measurement systems in use.
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please please helpppp
Answer: I think its hydrogen, good luck
Explanation:
Answer:
Last diagram
Explanation:
Here, only individual atoms of argon are there in this gas
what will happen to the atoms or sbstance when it freezes
Explanation:
Freezing is the process that causes a substance to change from a liquid to a solid. Freezing occurs when the molecules of a liquid slow down enough that their attractions cause them to arrange themselves into fixed positions as a solid.
Please help me, I really need it, God Bless you <3
#1
[tex]\\ \sf\longmapsto {}^{88}_{38}Sr^{2+}[/tex]
As 2 electrons are donated Hence the No of electrons =38-2=36#2
[tex]\\ \sf\longmapsto {}^{51}_{23}V^{3+}[/tex]
As 3 electrons donated the no of electrons=23-3=20#3
[tex]\\ \sf\longmapsto {}^{55}_{26}Fe^{3+}[/tex]
No of neutrons=55-26=29#4
[tex]\\ \sf\longmapsto {}^{112}_{48}[/tex]
As 2 electrons are donated no of electrons =48-2=46#5
[tex]\\ \sf\longmapsto {}^{210}_{82}Pb^{2+}[/tex]
No of neutrons=210-82=128Within atoms, what kind of energy
is stored?
an object is traveleing at a speed of 7.500.0 cm/sec. what is this value in km/day
Answer:
1 cm » 0.00001 km
1 sec » 1/86400 days
[tex]7500 {cm \: sec}^{ - 1} = \frac{75 00\: cm}{1 \: sec} \\ \\ = \frac{7500 \times 0.00001 \: km}{(1 \times \frac{1}{86400}) \: day } \\ \\ = { \boxed{ \boxed{6480 \: km \: {day}^{ - 1} }}}[/tex]
what's is half life
Your friend's pet hamster weighs 152 grams on Earth. If that hamster traveled to space, what is its weight and why? Answer in complete sentences,
Answer:
force of gravity 1.2 N
Explanation:
dont know for sure but here's what I got
hydrogen bond is an example for? (PLEASE HELP!)
a) ion- dipole Interaction
b)dipole - dipole Interaction
c) dipole - induced dipole Interaction
d) induced dipole- induced dipole Interaction
Answer:
b)
Explanation:
hydrogen bond is a form of dipole-dipole interaction but with more unique properties
Jerod used a golf club to hit a ball what was the action and reaction
Answer: I'm pretty sure the action is Jerod swinging the golf club and the reaction is hitting the ball
Explanation:
Oxygen has an atomic number of 8. Which of the following could form the nucleus of an atom of oxygen?
6 protons and 8 neutrons.
4 protons and 4 neutrons. 6 protons and 2 neutrons. 8 protons and 10 neutrons.
Answer:
Answer: 8 protons and 8 neutrons
Explanation:
The mass number of oxygen is 16
Atomic number is 8
but proton number = atomic number = 8 protons
[tex]neutrons = mass \: number - atomic \: number \\ [/tex]
neutrons = 16 - 8 = 8 neutrons.
The nucleus of an atom of oxygen typically contains 8 protons and 8 neutrons specifically. So, none of the above options is correct.
What is the formula for calculating the atomic number?The atomic number may be defined as the number of a chemical element in the periodic table through which the elements are arranged in order of increasing the number of protons in the nucleus.
The atomic number of an element = The number of protons in the nucleus of an atom.
Now, according to the question,
If Oxygen has an atomic number of 8, that means the number of protons = 8.
The number of neutrons can be calculated as follows:
Neutrons = mass number - the atomic number.
= 16 - 8 = 8 neutrons.
Therefore, the nucleus of an atom of oxygen typically contains 8 protons and 8 neutrons specifically. So, none of the above options is correct.
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Which phrase is an accurate description of the process of erosion
The correct option is C. Erosion is the process by which the earth surface get worn down. It involves the removal of soil, rocks or dissolved material from one location and its transportation to another location.
_______ is an example for isotone. a)argon and carbon b) uranium and carbon c) carbon and boron d)sulphur and boron.
Isotones are nuclides that have the same neutron number but a different proton number. Therefore the answer is C. boron and carbon.
Answer:
c) carbon and boron
Explanation:
They have the same number of neutrons but different number of protons.
They both contain 7 neutrons
12579 nm rounded to 3 significant figures is
[tex]\\ \sf\longmapsto 12579nm[/tex]
[tex]\\ \sf\longmapsto 12579\times 10^{-9}m[/tex]
[tex]\\ \sf\longmapsto 1257.9\times 10^{-8}m[/tex]
[tex]\\ \sf\longmapsto 12.5\times 10^{-6}m[/tex]
[tex]\\ \sf\longmapsto 12.5\mu m[/tex]
Answer:
1.26e-5
Explanation:
Change 12579 nm to meters first, it becomes 1.2579e-5, then rounding it to 3 significant figures becomes 1.26e-5.
True or false?
1. Cells carry on the processes that keep organism live?
True or false?
2. The digestive system is in the levels of organization under organ?
Why Farmers kill the silkworm inside the cocoon .
Answer:
It allows the completion of the metamorphosis of the silkworm to its moth stage, whereas most silk harvesting requires the silkworms to be killed in their cocoon stage. No animals suffer or die for the silk to be produced, making it a favorable alternative to normal silk for those who do not believe in harming animals.
does nail polish remover sink or float
nail polish remover float
Answer:
it will float on water
explanation:
Geekette hypothesized that since it floated on the water, like ice does, it must be less dense. ... According to Ken Johnsen, who lists his expertise in chemistry, the components of nail polish indeed make it less dense than water
