Explanation:
Sorry I tried but I do not know the answer but maybe someone else's know and can tell you the answer
8.3 kg, 1.7 Kg/cm3
-> ? cm3
Answer:
4.9 cm³
Explanation:
Given data:
Mass value = 8.3 kg
Density = 1.7 kg/cm³
Volume = ?
Solution;
In given question from the units we got to know that the mass and density value is given and we have to calculate the volume.
Thus, we will apply density formula.
Density = mass/ volume
d = m/v
1.7 kg/cm³ = 8.3 kg/ v
v = 8.3 kg/ 1.7 kg/cm³
v = 4.9 cm³
Thus, the volume is 4.9 cm³.
What is the wavelength of a radio wave with a frequency of 3.1 X 106 Hz?
Answer:
Assuming that the frequency of a wave is 3 multiplied to 109 Hertz, then we use wave velocity over frequency. Therefore, 327 Hertz has a wavelength of approximately 917 kilometers and has a velocity of at least 300,000 kilometers per second
Explanation:
hope it helps give cronw ples
How many electrons would Pd have if it had a +2 charge?_ How many electrons would Pd have if it had a +2 charge?
Answer:
80
Explanation:
W know that, the atomic no of lead (Pb) is 82. The no of protons is equal to the atomic no.
No of protons = 82
It has a charge of +2. It means that its lacks 2 electrons. No of electrons is :
e = 82-2
e = 80
Hence, Pd will have 80 electrons now.
Which statement best describes what happens Which statement best describes a physical change?
Changes can occur to certain chemical properties of the substance, but the overall shape of the substance will remain the same.
Changes can occur to certain physical properties of the substance, but the overall shape of the substance will remain the same.
Changes can occur to physical properties of a substance, but the chemical composition of the substance remains the same.
Changes can occur to chemical properties of a substance, but the chemical composition of the substance remains the same.during a chemical change?
Answer: The third one, changes can occur to physical properties but the chemical composition remains the same.
Explanation: Chemical changes change the chemical composition. Physical changes do not.
if maria runs at a speed of 2 m/s, how far will she run in 60 seconds
Answer:
The answer is 120 mExplanation:
The distance covered by an object given it's velocity and time taken can be found by using the formula
distance = speed × timeFrom the question
speed = 2 m/s
time = 60 s
We have
distance = 2 × 60
We have the final answer as
120 mHope this helps you
1. A student in lab measures 4.6 grams of copper for an experiment. Upon further analysis he determines that he should have measured out 4.7 grams of copper. What is his percent error?
Answer:
[tex]2.13\%[/tex]
Explanation:
Quantity of copper measured by a student = 4.6 grams
Original quantity of copper = 4.7 grams
Error in measurement = Original quantity of copper - Quantity of copper measured by a student [tex]=4.7-4.6=0.1[/tex] grams
To find the percent error, apply the following formula:
Percent error = (Error in measurement / Original quantity of copper) × 100
[tex]=\frac{0.1}{4.7}(100)=2.13\%[/tex]
What are atoms made up of
They're made up of three main parts: protons, neutrons and electrons. Think of the protons and neutrons as together forming a “sun”, or nucleus, at the centre of the system. The electrons orbit this nucleus, like planets. If atoms are impossibly small, these subatomic particles are even more so.
How many moles of zinc are in 12.044 X 10^26 zinc atoms
Explanation:
Explanation:
The problem basically wants you to find a way to convert between the number of atoms present in the sample and the number of moles they are equivalent to.
To convert between atoms and moles we use something called Avogadro's constant, which basically acts as the definition of a mole.
More specifically, in order to have one mole of an element you need 6.022⋅1023 atoms of that element. You can thus use this number as a conversion factor to take you from atoms to moles or vice versa.
In your case, you will have
Suppose a deep sea diver dives from the surface to 81 feet below the surface. He then dives down 13 more feet.
Find and interpret the sum to describe the diver's present depth.
Answer:
-94 feet.
Explanation:
is the amount of
matter in an object.
Group of answer
choices
Weight
Volume
Density
Dough
Expressed to the correct number of significant figures, what is the correct sum of (3.04g + 4.134g + 6.1g)?
Answer:
13.3g
Explanation:
3.04g + 4.134g + 6.1g = 13.274g
=13.3g
When expressing the correct number of significant figures in addition, you go to the last common decimal place. In this case that is 0.1 because all the numbers have this decimal place.
This is because your measurement can only be as precise as the least precise measurement. The more decimal places in the measurement, the more precise the measurement.
When liquid water boils the distance between the particles increases
Answer:
If a liquid is heated the particles are given more energy and move faster and faster expanding the liquid.
The distance between the particles increases tremendously the attraction doesn't change.
What occurs to the water particles whilst water boils?
Whilst water is boiled, the heat energy is transferred to the molecules of water, which begin to pass extra quickly. ultimately, the molecules have an excessive amount of power to stay connected as a liquid. while this takes place, they shape gaseous molecules of water vapor, which go with the flow to the floor as bubbles and tour into the air.
Does the space among particles increase when heated?On heating, their kinetic electricity pushes neighboring atoms or molecules other than each different. This pushing of atoms or molecules outcomes in a slightly accelerated distance among molecules and the volume of stable additionally increases.
Learn more about particles here: https://brainly.com/question/6503851
#SPJ2
Please answer correctly..
will give the brainliest!
Urgent!!!!!!
What does the chemical formula CaCl, show about the compound it represents
I NEED HELP ASAP PLEASE TO WILL GIVE YOU A BRAINLEST
Answer:
Gravity
Explanation:
According to Newton's Law of Gravity, an object with mass will attract another object with mass.
Significant figures are the digits within the number that help determine
accuracy.
о
True
о
False
Answer:false
Explanation:
anyone know this? I'll brainlist u!
Answer:
for the second one i'd go with reflection
Explanation:
What subatomic particles are found in the nucleus and in the electron cloud
Answer:
Electrons
Explanation:
How did Moseley establish a more accurate periodic table?
How many electrons does the Mg+2 ion have?
Answer:
10 electrons
Explanation:
The easiest way to do this is to simply look at the periodic table, find the atomic number of magnesium, and subtract 2 from it. The reason this works is that the atomic number tells you how many protons an element has. If we want the element to be neutral, then by definition it will have the same number of electrons.
Answer:
10 Valence Electrons
Explanation:
Easiest thing to do is to look at your periodic table :)
2. An object has a mass of 10 grams and a volume of 5 cm3. What is the density of the object?
Answer:
The answer is 2 g/cm³Explanation:
The density of a substance can be found by using the formula
[tex]density = \frac{mass}{volume} \\ [/tex]
We have
[tex]density = \frac{10}{5} \\ [/tex]
We have the final answer as
2 g/cm³Hope this helps you
Which of the following is the correct name for N2S5?
What is the definition Of prokaryote and give me a sentence that explain its so definition Adn the sentence
Answer:
Explanation:
Definition of Prokaryote. a single-celled organism (such as bacteria) that lacks a nucleus and cannot be seen with the naked eye. Examples of Prokaryote in a sentence. 1. The scientist studied the prokaryote under the microscope to see if its single-cell would multiply in certain conditions.
Hope this helps!
Prokaryotes are a single celled organism that is microscopic. They do not have a distinct nucleus with a membrane. They don't have other specialized organelles either. They also include bacteria and archaea.
"Prokaryotes are so small you cant see them with the bare human eye!"
[tex]\boxed{I\;hope\;it\;helps!}[/tex]
<3
Which processes contribute to the formation of chemical sedimentary rocks?
Answer: the answer is B: Minerals dissolve and crystallize! :D
Explanation: hope this helps!
According to the kinetic-molecular theory, gas particles, liquid particles, and particles of a solid all experience some type of motion. Which statement best describes the motion of particles of a solid?
Answer:
kinetic energy
Particles in solids are always vibrating (moving back and forth) in place. The vibrational motion of particles in solids is kinetic energy. Heat makes the particles in a solid vibrate faster, giving them more kinetic energy.
Explanation:
The kinetic molecular theory of the states of particles describes the behavior, shape, motion, and observable properties. The particles of solids vibrate in a fixed position. Thus, option D is correct.
What is the kinetic theory?The kinetic-molecular theory was given for the states of matter and to show the movement and composition of the particles of the solids, gases, and liquids. It shows their motion respective to the phases and effects of various factors.
In kinetic-molecular theory, the solid particles are explained based on behavior and motion. It states that the solids have the least amount of kinetic energy in them due to their dense packaging. The solids are fixed in a place and show the back-and-forth vibration that is possible due to the least distance.
Therefore, option. the solid particles only vibrate at a fixed location.
Learn more about kinetic-molecular theory, here:
https://brainly.com/question/22301811
#SPJ2
Your question is incomplete, but most probably your full question was, According to the kinetic-molecular theory, gas particles, liquid particles, and particles of a solid all experience some type of motion. Which statement best describes the motion of particles of a solid?
A. They are motionless and in fixed positions.
B. They move slower and are farther apart than the particles of a liquid.
C. They are in greater disorder than the particles of a liquid.
D. They vibrate about fixed points.
What is the density of a substance with a mass of 1.8 kg and a volume of 0.2 L?
Hurry Quick for 10 points
giveaway
Answer:
The answer is 9.0 kg/LExplanation:
The density of a substance can be found by using the formula
[tex]density = \frac{mass}{volume} \\ [/tex]
From the question
mass = 1.8 kg
volume = 0.2 L
We have
[tex]density = \frac{1.8}{0.2} \\ [/tex]
We have the final answer as
9.0 kg/LHope this helps you
Answer:
knkjhhg
Explanation:
Look at the periodic table, Gold, Silver, Sodium, and Aluminum are all what type of element?
Answer:
They are all in Group 11.
Explanation:
Look at the periodic table!
The elements gold, silver, sodium, aluminum are all metals. Gold and silver is transition metals. Sodium is in s block and aluminum is a p block elements in periodic table.
What are metals?Metals are electropositive elements able to conduct electricity and because of the presence of a pool of free electrons.
Metallic elements forms ionic bonds with non-metals. Gold and silver are transition metals or d-block elements. They are highly conducting and silver is a common component in electrical devises.
Aluminum is a p-block element it is in 13th group and sodium is a first group element and is called as an alkali metal. Hence, all the given elements are metals.
To learn more about metals, refer the link below:
https://brainly.com/question/4701542
#SPJ2
The number of which type of particle determines the identity of an element?
Answer:
Protons give the atomic number
Explanation:
The distortion changing the shape of enzyme molecules which occurs at high temperatures is known as
Answer:
denaturing
Explanation:
enzyme denatures in extreme temperature and pH
Answer:
Denaturation
Explanation:
It change the shape of enzyme . It also occur in only high temperatures
~~20 points~~ What is the mass number of an element which has 43 protons, 46 neutrons, and 43 electrons?
a. 132
b. 3
c. 86
d. 83706
e. 89
f. -46
g. there is not enough information given to correctly answer the question
Answer:
e. 89
Explanation:
The mass number is the number of protons and neutrons in an atom. It doesn't include electrons.
43 + 46 = 89
