Write the name of the covalent compound ON.
Answer:
the answer is oxygen mononitride
If an object has a velocity of 8 m/s and
a momentum of 40 kg.m/s, what is the
mass of the object
Answer:
Explanation:
The Kinetic Energy (K.E) of an object can be calculated as:
We are given:
K.E = 480 K
Velocity of the object = v = 8 m/s
Using the values, we get:
Thus, the mass of the object will be 15 kg.
The mass of the object at the given momentum and speed is determined as 5 kg.
Momentum of the object
The momentum of the object is calculated as follows;
P = mv
where;
m is mass of the objectv is speed of the objectm = P/v
m = 40/8
m = 5 kg
Thus, the mass of the object at the given momentum and speed is determined as 5 kg.
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What is Newton's First Law known as? The Law of
____
Answer:
inertia
Explanation:
Answer:
Law of inertia, also called Newton's first law, postulate in physics that, if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.
Explanation:
hope it helps, please mark brainliest
what are two ways that substances can pass through a cell membrane out of the cell
Answer:
Passive transport, and Active transport
Explanation:
Do u need an explanation?
If so you can tell me and I'll edit it
Hope this helped a little!
The element in group 4 and period 3
find the pOH of a solution made by dissolving 10.4g of HCl in a 500mL solution of water
The pOH of a solution : 13.756
Further explanationMass HCl=10.4 g
mol HCl (MW=36.5 g/mol) :
[tex]\tt mol=\dfrac{mass}{MW}=\dfrac{10.4}{36.5}=0.285[/tex]
Volume of HCl = 500 ml = 0.5 L
[tex]\tt M=\dfrac{n}{V}\\\\M=\dfrac{0.285}{0.5}=0.57~M[/tex]
HCl ⇒ H⁺ + Cl⁻
[H⁺]=[HCl]=0.57 M
pH= - log[H⁺]
pH=-log[0.57]=0.244
pH+pOH=14
pOH=14-0.244
pOH=13.756
Convert 12.5 km/L to mi/gal.
Answer:
29.40182
Explanation:
What energy transformation occurs when a person is running
Answer:
Kinetic Energy (Hope This Helps)
Explanation:
(Brainliest)
Answer:
Chemical energy to kinetic energy. (Arguably heat energy (thermal) because of respiration)
What element does beryllium resemble (in terms of electrons) when it loses 2 electrons?
Answer: Helium
Explanation: Beryllium (Be) has an electron configuration of 2-2. Losing two electrons will leave it with two electrons in the first shell, resembling Helium.
Which of the following students best describes an element?
Answer:
I dont see anything.
Explanation:
But an element is a substance that is made only out of one atom.
Kelle & Jenn are at a pool. Kelle is standing on the high diving board while Jenn is standing on the low diving board. Assuming the difference in weight/mass is negligible, which of the following statements accurately describes this relationship?
A. Kelle has a greater potential energy than Jenn.
B. Jenn & Kelle have equal potential energies.
C. Jenn has a greater potential energy than Kelle.
D. Kelle has a greater kinetic energy than Jenn.
Answer:
A. Kelle has a greater potential energy than Jenn.
Explanation:
We need to apply the kinetic energy equation here to solve this problem: P.E. = mgh, where m is the mass in kilograms, g is the acceleration due to gravity (9.8 m / s2 at the surface of the earth) and h is the height in meters.
The problem tells us, however, that mass/weight is negligible; therefore, the only thing that really matters here is the height. Kelle is higher up, so she would have a greater potential energy than Jenn, who is lower.
99% 1H
0.8% 2H
0.2% 3H
Average Atomic Mass = [answer] amu
PLEASE HELP ME
Answer: 1.01 atomic mass units or amu
Explanation:
What is the percent composition by mass for hydrogen in water (H2O)?
% H =(_____/_____)x100%=______ % H
Explanation:
Percentage composition = 2/18 = 11.11%.
what is a normal phase of carbon?
the normal phase of carbon is solid
Describe the chemical reaction based on the
chemical equation below.Also, explain whether
the equation is balanced.
NH2(g) O2(g) pt NO(g)+H2O(I)
Answer:
Ammonia gas reacts with oxygen gas.
Nitric oxide gas and liquid water are produced.
Platinum is used as a catalyst.
The equation is unbalanced because the number of hydrogen atoms is not the same on both sides of the equation.
Explanation:
2. How many moles are found in 3.2 x 1023 atoms of NaCl?
Answer:
0.53 mol NaCl
General Formulas and Concepts:
Chemistry - Atomic Structure
Using Dimensional AnalysisAvogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.Explanation:
Step 1: Define
3.2 × 10²³ atoms NaCl
Step 2: Identify Conversions
Avogadro's number
Step 3: Convert
[tex]3.2 \cdot 10^{23} \ atoms \ NaCl(\frac{1 \ mol \ NaCl}{6.022 \cdot 10^{23} \ atoms \ NaCl} )[/tex] = 0.531385 mol NaCl
Step 4: Check
We are given 2 sig figs. Follow sig fig rules and round.
0.531385 mol NaCl ≈ 0.53 mol NaCl
the diagrams represent the same number of particles of a gas in 2 containers D snd E, Which have different volume. the two containers are at the same temperature.
in which container will the pressure be higher ?explain your answer
In container E, the pressure will be higher than container D
Further explanationGiven
Container with :
the same particlesthe same temperaturethe different volumeRequired
The higher pressure container
SolutionBoyle's Law stated that :
At a constant temperature, the gas volume is inversely proportional to the pressure applied
[tex]\rm p_1V_1=p_2.V_2\\\\\dfrac{p_1}{p_2}=\dfrac{V_2}{V_1}[/tex]
From the diagram (picture), it shows that the volume of container D is greater than container E, so the pressure applied to container D will be less than the pressure applied to container E
Pb(SO4)2 + 4 LiNO3 → Pb(NO3)4 + 2 Li2SO4
If 2.25 moles of lead (II) sulfate are combined with 9.62 moles of lithium nitrate, how moles of lithium sulfate can be created? please help
Answer:
4.5 moles of lithium sulfate are produced.
Explanation:
Given data:
Number of moles of lead sulfate = 2.25 mol
Number of moles of lithium nitrate = 9.62 mol
Number of moles of lithium sulfate = ?
Solution:
Chemical equation:
Pb(SO₄)₂ + 4LiNO₃ → Pb(NO₃)₄ + 2Li₂SO₄
Now we will compare the moles of lithium sulfate with lead sulfate and lithium nitrate.
Pb(SO₄)₂ : Li₂SO₄
1 : 2
2.25 : 2/1×2.25 = 4.5 mol
LiNO₃ : Li₂SO₄
4 : 2
9.62 : 2/4×9.62 = 4.81 mol
Pb(SO₄)₂ produces less number of moles of Li₂SO₄ thus it will act as limiting reactant and limit the yield of Li₂SO₄.
(2k-1)²
what the answer pls.
Answer:
4k^2-4k+1
Explanation:
Plx give brainlyest
How many molecules are in 33.6 liters of neon (Ne) gas at STP?
Answer:
moles or atoms?
Explanation:
you can't have a molecule of any so there's two different answers that I can give you:
how many moles? 1.5
how many atoms? 9.03x10^23 atoms
At STP 1 mole of an ideal gas occupies 22.4L.
33.6 L x 1 mol/22.4 L = 1.5 moles of Neon
1.5 moles Ne x 6.02x1023 atoms/mole = 9.03x1023 atoms
9.03x10²³ molecules are in 33.6 liters of neon (Ne) gas at STP. At STP 1 mole of an ideal gas occupies 22.4L.
What is atom?The smallest unit of matter that may be split without producing electrically charged particles is the atom. It is also the smallest piece of substance with chemical element-like characteristics. Electric forces, which link electrons towards the nucleus of atoms, cause them to be drawn to any positive charge.
Space makes up the majority of an atom. The remainder is made up of a cloud of negatively charged electrons around a positively charged nucleus made up of protons and neutrons. Compared to electrons, that are the smallest charged particles in nature, the nucleus is tiny and dense.
At STP 1 mole of an ideal gas occupies 22.4L.
33.6 L x 1 mol/22.4 L = 1.5 moles of Neon
1.5 moles Ne x 6.02x10²³ atoms/mole = 9.03x10²³ atoms
Therefore, 9.03x10²³ molecules are in 33.6 liters of neon (Ne) gas at STP.
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look.............................................
Answer:
Your answer is correct.
Explanation:
The steel paper clip would only move because it has steel in it, which is a magnetized material, plastic on the other side, is made up of polymers which are not attracted to the magnetic force, causing it not to move.
What happens to the velocity of an object when balanced forces act on it?
a.
There will be no change
c.
There will be negative acceleration
b.
There will be positive acceleration
d.
Velocity will change, but not acceleration
Answer:
There will be negative acceleration.
Explanation:
I majored in Physics
Answer:
A. There will be no change
Explanation:
Velocity is defined as the directional speed of an object in motion. Balanced forces do not result in any change in motion. Thus, there would be no change in velocity.
Write an expression for standard enthalpy of formation using suitable chemical reaction
A. 6750 J
B. 387 J
C. 1935 J
D. 3.50 J
Answer:
It was answer
A)1935J
Explanation:
Please answer on paper and send a picture of the answer. thank you
Answer:
I dont know how to take a picture so I will just tell you the answer. The answer is no.
Explanation:
Hope this helps. :) :D
A student mixes two chemicals in a test tube. She notices that the mixture starts to bubble and the test
tube feels very warm. The student most likely concludes that the mixture is-
F. a chemical reaction that happened too quickly.
G. an endothermic reaction that absorbed thermal energy.
H. an exothermic reaction that released thermal energy.
J. not a chemical reaction.
Answer:
H. an exothermic reaction that released thermal energy.
Explanation:
The student will most conclude that this is a chemical reaction in which thermal energy is released to the environment.
Such reactions accompanied by the release of thermal energy are exothermic reactions.
In an exothermic change, heat is liberated to the surrounding. The surrounding becomes hotter at the end of the changes. For such reaction we say that enthalpy change is negative.For endothermic reactions, heat is absorbed. At the end of the reaction, the system is cold.
What is an example of a congenital disorder
Answer:
down syndrome
Explanation:
What is a transform boundary, and how does it affect the land?
Answer:
simple
Explanation:
A transform fault or transform boundary is a fault along a plate boundary where the motion is predominantly horizontal.[1] It ends abruptly where it connects to another plate boundary, either another transform, a spreading ridge, or a subduction zone.[2]
Please answer fast, shouldn't take long to do ^-^ (will give brainliest)
Which is the correct formula for iron (II) phosphate?
a. Fe2PO4
b. Fe3(PO4)2
c. Fe2PO3
d. Fe(PO4)2
e. Fe(PO3)2
Answer:
B
Explanation:
Aluminum has the electronic configuration 2,8,3. How many valence
electrons are in the aluminum atom?
Answer:
3 valence electrons
Explanation:
Because aluminum has three, that means three fluorines can bond. The make the formula AlF3, also known as aluminum trifluoride. Each of the fluorine atoms gets an electron to fill their shell, and the aluminum loses three, giving it a filled shell too (remember, aluminum has three extra electrons).
