Answer:
The answer is 'C. In every body cell'
Explanation:
I hope this was helpful, have a blessed day.
The higher the effective nuclear charge, the greater the -------- exerted by the nucleus of the added electron?
Answer:
Pull
Explanation:
The higher the effective nuclear charge, the more the nucleus will be gaining protons. This process makes the electrons to be drawn closer to the positive charge of the nucleus.
Thus, it leads to a greater pull exerted by the nucleus on the added electrons.
State of matter
A gas made up of homonuclear diatomic molecules escapes through a pinhole 3.98 times as fast as oxygen gas. Write the Chemical formula of the gas.
Answer:
H₂
Explanation:
To solve this question we must find, as first, find the molar mass of the homonuclear diatomic gas using Graham's law. With the molar mass we can identify this gas
Graham's law:
[tex]\frac{V_a}{V_b} =\sqrt{\frac{m_B}{m_A} }[/tex]
Where V is the speed of the gases and m the molar mass of those:
As Va is 3.98 times Vb (And mB is molar mass of oxygen gas = 32g/mol)
[tex]3.98 =\sqrt{\frac{32g/mol}{m_A} }[/tex]
15.84 = 32g/mol / mA
mA = 2.02g/mol
As is a homonuclear diatomic gas, the molar mass of the atom is 1.01g/mol. Thus, the gas is:
H₂6
Use the image of an element square to answer the following
questions:
C
Carbon
12.01
What does the 6 in the upper left
represent?
What does the 12.01 represent?
Answer:
the 6 stands for the atomic number
the 12.01 stands for the atomic mass
5. The number of atoms in 9.2 g of Na will be: A. 6.2 x 1023 atoms B. 2.408 x 1023 atoms C. 9.2 x1023 atoms D. 23 atoms E. 9.2 atoms
Answer:
The answer is "Option B"
Explanation:
Formula:
Na atoms= Na atoms moles \times NA
[tex]= \frac{mass}{Na \ Molar\ mass} \times 6.022 \times 10^{23}\\\\= \frac{9.2}{23} \times 6.022 \times 10^{23}\\\\=0.2875 \times 6.022 \times 10^{23}\\\\=2.4 \times 10^{23}\ atoms \\\\[/tex]
A 1.0 liter flask contains 90.1 moles of water vapor at 27.0 oC. What is the pressure of the gas?
Answer:
The pressure of the gas is 224839.8 atm
Explanation:
As we know
PV = nRT
Substituting the given values, we get -
P * 1 L = 90.1 moles * 8.314 4621(75). J K−1 mol−1 * 300
P = 224839.8 atm
The pressure of the gas is 224839.8 atm
how do you make a potion of slow falling
Answer:
So you can make it longer by putting in some redstone. And this will give you a potion that will last for 4 minutes. Alright we're done it's got 4 minute slow falling potions.
Explanation:
Answer:
Ok, to make a slow falling potion, you need 1 water bottle, 1 nether wart, and 1 fantom membrane.
Explanation:
hope I could help, lmk if I did!
IS ANYONE GOOD AT CHEMISTRY?! i need help please lol
Answer:
I'm ok at it.
Explanation:
I can try to help if you need anything:)
Bobby has a toy car that is sitting at rest on the floor. He decides to play with his toy car and pushes it with 3 newtons to the right. Bobby's friend Sam also decides to play with the toy car and pushes it with 6 newtons to the left at the exact same time. Which of the following best describes the resulting motion of the toy car? A It travels to the right at an increasing speed. B It travels to the right at a constant speed. C It travels to the left at an increasing speed. D It travels to the left at a constant speed.
Answer: D
Explanation:
The car will move to the left because Sam is implying a grater force (3 N < 6 N) but it is traveling at a constant speed because there is still a force being acted upon it. <3
The result of applying forces to a toy car is required.
Option D is correct.
Force applied by Bobby is 3 N to the right
Force applied by Sam is 6 N to the left
Right is taken as positive and left is taken as negative.
m = Mass of toy
a = Acceleration
Net force applied to the toy
[tex]F=3-6\\\Rightarrow F=-3\ \text{N}\\\Rightarrow ma=-3\\\Rightarrow a=\dfrac{-3}{m}[/tex]
So, the toy will move left with a constant acceleration.
Constant acceleration means its speed will be increasing.
So, option D is correct.
Learn more:
https://brainly.com/question/18373733?referrer=searchResults
What did Rutherford contribute to the model of the atom?
the neutron
the proton
the nucleus
the electron
Answer:
the nucleus
Explanation:
He proposed that the mass of an atom is concentrated in the nucleus which occupies a small volume in the center .He added that the nucleus comprises the protons and neutrons.where the neutron had no charge while the protons had charge of +1
Answer:
the nucleus
Explanation:
How much so you can be dissolved and 50 mL of water at 30 Celsius see chart:)
Answer:
The correct answer is - 100 grams.
Explanation:
The solubility graph is a very useful tool because it tells you the amount of solute that can be dissolved per 100 mL of water in order to have a saturated solution of potassium nitrate at a given temperature.
In order to find the solubility of the salt at 30 ∘ C , start from the 30 ∘ C
mark on the graph and move up until you intersect the curve. At the point of intersection, move left until you intersect the y axis and read off the value that you land on which is 200. However, it is for 100 ml so half the value you read:
200/2 = 100 gram .
So, solubility ≈ 100 g / 50 mL water
So, a saturated solution of solute will hold about 100 g of dissolved solute, that is of dissociated solute, per 50 mL of water at 30 ∘ C .
A(n)
Is the explanation of phenomena through the use of several Investigations or a scientific method.
O hypothesis
O scientific theory
O scientific law
what is the name of the chemical used for bleach in sugar industries?
Answer:
Sulfur Dioxide
Explanation:
Sulfur dioxide is the chemical that, when released by factories using fossil fuels, combines with the atmosphere and can produce acid raid.
Which contains more carbon 4.71 g of C6H12O6 or 5.85 g C2H6O?
Answer:
5.85 g C2H6O has more carbon
Explanation:
Weight of carbon in 4.71 g of C6H12O6
[tex]4.71 * 12.01\\56.5671\\[/tex] grams
Weight of carbon in 5.85 g of C2H6O
[tex]5.85 * 12.01\\70.259\\[/tex] grams
Hence, 5.85 g C2H6O has more carbon
answer asap pls i give brainliest
Answer:
B. Revolution is a planet's movement around the sun causing four seasons the occur. Rotation is the spinning of the planet on its axis causing day and night.
which of the following is true about these diagrams
Answer:
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What is the purpose of a buffer?
Answer: A buffer solution is a solution made to prevent the pH level of something from changing when you add a base or an acid to it. For example, if you put a buffer solution in a pool, and then you put chlorine in it, the chlorine's effect on the PH level will be suppressed.
If you put a link, you will be reported.
Answer:
5ppm
Explanation:
there are 1 million (1,000,000) µg (micrograms or mcg) per g (gram) ("micro" means millionth). So, 4. 1 part per million (ppm) for a 1g sample is 1 µg or .
I know you said no links, but this is a converter that explained it much better than I know how to
http://www.endmemo.com/sconvert/ppmug_g.php#:~:text=%C2%BB%20Microgram%2Fgram%20Conversions%3A&text=ug%2Fg%E2%86%94ppm%201%20ug%2Fg%20%3D%201%20ppm
heres a screenshot of the site (since i understand links are awful)
HELP!!! WILL MARK BRAINLIEST!!!
picture attached below
Answer:
0.2 cm
Explanation:
looking at the ruler, you can see that the diameter is 0.4 cm. to get the radius, just divide by two, which gets 0.2 cm as the radius
Forensic biologist Manning is looking at a cell sample under the microscope. The cell she sees is oval, with a long tail or flagellum. Immediately, she knows that this is a ________ cell.
red blood
skin
sperm
plant
Answer:
Sperm Cell
Explanation:
Which term identifies a type of intermolecular force?
A.
covalent bonding
B.
hydrogen bonding
C.
ionic bonding
D.
metallic bonding
Answer: B. Hydrogen Bonding
Explanation: I got it right on castle learning lol
There are different kinds of forces. The term that identifies a type of intermolecular force is hydrogen bonding.
The three known to be types of intermolecular interactions. They are
Dipole–dipole interactions London dispersion forces hydrogen bonds.
Hydrogen bonding is known to be an intermolecular force that takes place between two molecules. That molecule is known to have a hydrogen atom be bonded to a nitrogen, oxygen, or fluorine atom.
Learn more about Bond from
https://brainly.com/question/1420470
Make up a short story to explain jays speed and acceleration change throughout his walk. Make sure to address parts A-D
Answer:
Speed of jays increases first, again increases, decreases and then increases.
Explanation:
The speed of jays increases while moving from rest to point A and no acceleration due to constant speed. From point A to point B, the speed is continues to increase and no acceleration. From point B to point C, the speed of jays decreases and acceleration is produced in the journey due to change of speed and from point C to point D, the speed of jays again increases and acceleration is produced due to increasing the speed.
Answer:
The speed of jay's walk increases first, again increases, then it decreases and then increases due to his acceleration walk during parts A-D.
Explanation:
Why can more water vapor (water molecules that are in the gas state of matter) be present in warm air than in cold air?
Answer:
Because warm air is less dense
Explanation:
2. If you have 100 graham crackers, unlimited chocolate, and only five marshmallows, how many S’mores can you make? Show calculations.
Answer:
I'm pretty sure it's only 5, because once you've used up all 5 marshmallows, you can't make any more s'mores. Unless just graham crackers and chocolate counts as a s'more...
:)
Graphene is made of pure _______________.
Answer:
Graphene is made of pure carbon.
Explanation:
It is a material in which the carbon atoms are arranged in a single layer, creating a honeycomb pattern. It should be stressed that this layer of carbon is only one atom thick, although some authors consider up to ten layers of carbon to be graphene.
please mark me brainliest
. What is the molarity of 5.30 moles of NaCl dissolved in 0.400 L of solution?
Answer:
13.25 M
Explanation:
Molarity is moles over liters so simply plug your values in as such:
5.30 mol ÷ 0.400 L = 13.25 M
answer truthfully:))
Answer:
Formula: [tex]Velocity \: V = f \lambda \\ Solution: = 5 \times 0.8 \\ = 4 \: {ms}^{ - 1} [/tex]
Answer:
The first guy is correct. That's what I got too
This attached picture !!
What effect does an increase in carbon dioxide (CO 2 ) have on the concentration of hydrogen ions (H^ + ) in the blood?
Answer:
As the level of carbon dioxide in the blood increases, more H+ is produced and the pH decreases. This increase in carbon dioxide and subsequent decrease in pH reduce the affinity of hemoglobin for oxygen. The oxygen dissociates from the Hb molecule, shifting the oxygen dissociation curve to the right.
A process used to gain knowledge through observation and investigation is?
science
math
physics
energy
matter
Answer:matter
Explanation:
matter
make brain
How many kJ are needed to heat 300.0 g of ice at -5.00°C into steam at 100.°C?
Answer:
Q = 63.9 kJ
Explanation:
Given that,
Mass of ice, m = 300 g
We need to find the heat needed to heat the given amount of ice at -5.00°C into steam at 100.°C
The specific heat of ice, c = 2.03 J/g °C
The formula for heat needed is given by :
[tex]Q=mc\Delta T\\\\Q=300\times 2.03\times (100-(-5))\\\\Q=63945\ J\\\\Q=63.9\ kJ[/tex]
So, 63.9 kJ of heat is needed.
