Answer:
The mass of water is known to be 1 g/mL or 1 g/cm3. If an object has a density greater than 1 g/cm3, it is denser than water and will sink. If it has a density of less than 1 g/cm3, it will float. For example, a penny is made out of zinc (7.14 g/cm3) and copper (8.96 g/cm3) so it sinks in water.
Explanation:
In the first propagation step of the bromination of 2,3-dimethylbutane, the newly formed Br radicals react with the molecules of 2,3-dimethylbutane. Give the major products formed by the first propagation step including both organic and inorganic products. Draw the molecule on the canvas by choosing buttons from the Tools (for bonds), Atoms, and Advanced Template toolbars. Include all free radicals by right-clicking on an atom on the canvas and then using the Atom properties to select the monovalent radical.
Answer:
See explanation
Explanation:
When the bromine free radical attacks 2,3-dimethylbutane, two free radicals may result. One of them is primary (formed by attack on then end -CH3 group) the other is secondary.
Recall that the order of stability of free radicals is tertiary > secondary > primary > methyl.
Hence the secondary free radical is more thermodynamically stable hence it is the major free radical formed in the first propagation step.
what method of cleaning tools and equipment do you follow or apply?
I clean with a rag wdym
What group will elements in the 7th column bond to?
what is generally true about the compressibility of solids?
Answer:
That it is hard to compress
Explanation:
i need some help all of this stuff is due soon
Answer:
A is one of them.
Is there more?
B and D if I'm not mistaken.
The lightning storm is just what you'd expect it to be, and the comb is collecting particles of what looks like paper?
Anyway, the rock and the magnet are forcefully pulling the metal objects towards it with electromagnetism.
What are some uses we might have for standing waves?
what are the stages of breast cancer and what happens in each stage?
actually anatomy & physiology
own words pls i need it now
Answer:
There are 5 stages of breast cancer: stage 0 (zero), which is non-invasive ductal carcinoma in situ (DCIS), and stages I through IV (1 through 4), which are used for invasive breast cancer. The stage provides a common way of describing the cancer, so doctors can work together to plan the best treatments.
Explanation:
Please hurry :(
A whale has a calf and a bacteria replicates through cloning. Both of these are examples of what?
Answer:
Either growth and development or reproduction
Explanation:
Answer:
r e p r o d u c t i o n
Explanation:
Find the force of the mass is 6kg and the acceleration is 12 m/s/s
Answer:
72N
12m/s
Explanation:
f=ma
=6×12
=72N
a=f÷m
=72÷6
=12m/s
The thick soil accumulation of fine-grained particles is called: O Sediment Loess O Gravel O Silt
The thick soil accumulation of fine-grained particles is called as silt
what are the representative elements usually called
Answer:
There are two sets of groups in the periodic table. The first set are Group A elements and are also known as representative elements. The second set are Group B elements and are also known as transition metals. Representative elements are the most abundant elements on earth.
A hot lump of 30.5 g of iron at an initial temperature of 52.7 °C is placed in 50.0 mL H2O initially at 25.0 °C and allowed to reach thermal equilibrium. What is the final temperature of the iron and water, given that the specific heat of iron is 0.449 J/(g·°C)? Assume no heat is lost to surroundings.
final= _______ degrees Celsius
Answer:
26.7°C
Explanation:
Using the formula; Q = m × c × ΔT
Where; Q = amount of heat
m = mass
c = specific heat
ΔT = change in temperature
In this question involving iron placed into water, the Qwater = Qiron
For water; m= 50g, c = 4.18 J/g°C, Initial temp= 25°C, final temp=?
For iron; m = 30.5g, c = 0.449J/g°C, Initial temp= 52.7°C, final temp=?
Qwater = -(Qiron)
m × c × ΔT (water) =- {m × c × ΔT (iron)}
50 × 4.18 × (T - 25) = - {30.5 × 0.449 × (T - 52.7)}
209 (T - 25) = - {13.6945 (T - 52.7)}
209T - 5225 = -13.6945T + 721.7
209T + 13.6945T = 5225 + 721.7
222.6945T = 5946.7
T = 5946.7/222.6945
T = 26.7
Hence, the final temperature of water and iron is 26.7°C
HELP ME ASAP PLEASE BIG POINTs
Answer:
1.cation
2.anion
Explanation:
the plus is always cation and the negative is anion
Answer:
1. cation
2. anion
Explanation:
A positive ion is always cation and the negative ion is anion
What is the mass of a hydrogen atom?
Answer:
1.00784 u
Explanation:
Answer:
1.00784 u
Explanation:
hydrogen atomm
when a sample of CO2(s) becomes CO2(g), there is a change is
Explanation:
hope it helps you please make me brainlest (it's a photo)
I need help with this ASAP PLEASE!! WILL MARK BRAINLIEST!!
Write the following value in decimal form
8.99 x 10^-7
Answer:
0.000000899
Explanation:
8.99x10^-7
move the decimal to the left 7 times.
0.000000899
Answer:
0.000000899
Explanation:
.,.......,.........
an object has a mass of 57.6g . find the object's density, given that's it's volume is 40.25cm^3
Answer:
The answer is 1.43 g/mLExplanation:
The density of a substance can be found by using the formula
[tex]density = \frac{mass}{volume} \\[/tex]
From the question
mass = 57.6 g
volume = 40.25 cm³
We have
[tex]density = \frac{57.6}{40.25} \\ = 1.431055900...[/tex]
We have the final answer as
1.43 g/mLHope this helps you
What are 2 mixtures and explain your answer
Air
Orange juice
Silver
Sodium chloride
Water
Which piece of ice has the most themal energy
A. 10,000 g ice sculpture at -1c
B. 10 g ice cube at -1c
it's B
Explanation:
just because 1111111111111111111
A substance that conducts electricity, is malleable, ductile, and has luster would be classified as a
A) compound.
B) element.
C) metal.
D) nonmetal.
According to kineric molecular theory which statement descrives the particles in a sample of an ideal gas
Answer:
According to the kinetic molecular theory, which statement describes the particles in a sample of an ideal gas? The motion of the gas particles is random and in a straight-line.
Explanation:
Which of the following types of soil has the greatest permeability?
A. Loam
B. Sandy
C. Clay
D. Silty
Answer:
Sandy soil
Explanation:
Sandy soil has the greatest permeability of all soil types. It has a high amount of pore space and grain size.
Permeability is the ability of fluids to pass between the grains of a substance, here soil. It is usually a function of the size of the pore spaces and the grain size.
Sandy soils are usually made up of particles with sand-sized shapes and dimension. They have bigger and finer grains with little to no cement. This allows for a high level of permeability with no impediment to flow.Clay soil has very fine grain and with very low permeability. Silty soils have fair enough permeability and the permeability of loam straddles between that of sand and clay.Permeability is very important for determining the quality of soils.
How do you make an atom of F become Ne?
Answer:
If atoms gain electrons, they become negative ions, or anions. ... A fluorine atom has nine protons and nine electrons, so it is electrically neutral. If a fluorine atom gains an electron, it becomes a fluoride ion with an electric charge of -
Explanation:
Answer:
Add and electron and a proton
Explanation:
You would have to add a proton and an electron to F to get it to be Ne
If this decay has a half life of 2.60 years, what mass of 72.5 g of sodium 22 will remain after 15.6 years
Sodium-22 remain : 1.13 g
Further explanationThe atomic nucleus can experience decay into 2 particles or more due to the instability of its atomic nucleus.
Usually, radioactive elements have an unstable atomic nucleus.
General formulas used in decay:
[tex]\large{\boxed{\bold{N_t=N_0(\dfrac{1}{2})^{T/t\frac{1}{2} }}}[/tex]
T = duration of decay
t 1/2 = half-life
N₀ = the number of initial radioactive atoms
Nt = the number of radioactive atoms left after decaying during T time
half-life = t 1/2=2.6 years
T=15.6 years
No=72.5 g
[tex]\tt Nt=72.5.\dfrac{1}{2}^{15.6/2.6}\\\\Nt=72.5.\dfrac{1}{2}^6\\\\Nt=1.13~g[/tex]
Write the following value in decimal form
2.2 x 10^2
Answer:
220
Explanation:
2.2 x 10^2
You just move the decimal two units to the right...
Hope this helps:)
can someone call me and help me with chemistry
860-833-8822
Answer: okay
Explanation:
Answer:
What exactly do you want help with
Explanation:
An atom of an element contains 6 protons, 6 neutrons, and 6 electrons. An atom that is a different isotope of this element would contain —
A.
6 protons, 7 neutrons, and 6 electrons.
B.
6 protons, 6 neutrons, and 7 electrons.
C.
7 protons, 6 neutrons, and 6 electrons.
D.
7 protons, 7 neutrons, and 7 electrons.
Answer:
A
Explanation:
An atom that is a different isotope of a given element would contain 6 protons, 7 neutrons, and 6 electrons. Therefore, option (A) is correct.
What is an isotope?Isotopes are atoms of an element that contain the same atomic number as the original element but a different atomic mass. Isotopes of an element possess the same number of electrons and the number of protons but different numbers of neutrons in their respective nucleus.
For example, the isotopes of carbon are carbon-14, carbon-13, and carbon-12. Carbon-14 has a total of 8 neutrons, carbon-13 have a total of 7 neutrons, and carbon-12 has a total of 6 neutrons. So all the isotopes of carbon have different numbers of neutrons.
Given element has 6 protons, 6 neutrons, and 6 electrons. So the isotope of this element will have 6 protons, and 6 electrons but not 6 neutrons. Therefore, the element with 6 protons, 7 neutrons, and 6 electrons is the isotope of the given element.
Learn more about isotopes, here:
brainly.com/question/11680817
#SPJ2
Potential energy is based on an objects
A)gravity
B)mass
C)position
D)kinetic
Answer:
c
Explanation:
because potential energy is created with the position of a body when you pick up something the thing will have stored energy which is transferred from you so the stored energy is potential energy created by the position of a body that when you see over your head you scared of that thing not to bit you because it has stored energy if you see the thing already failed on the ground you wouldn't scared of that because the enery is already gone
Hope help you
In a one or two paragraph summary explain why Sodium light is Orange and Potassium light is lilac when placed in a flame.
Use the words: electron, quantum jump, ground state, orbitals, photons, emitting, absorbing, light spectrum, energy mass (words are not in order)
Answer:
?
Explanation:
HELP PLEASE! There is a water-filled continental rift in Iceland. What type of plate boundary would cause this rift? *
A. convergent
B. divergent
C. transform
Lithospheric plates move because of the movement of the ___________________________ under them.
A. lower mantle
B. asthenosphere
C. outer core
D. inner core
Answer:
B. Divergent
The rift formed in the Divegent tectonic boundary between the North America and Eurasian Plates and is located now in Iceland (Im sorry im not good at explaining)
