Answer:
The answer is
D)
radiant, electrical, mechanical
Explanation:
jeffrey is on his skateboard and starts skating down a ramp. ten seconds later he is traveling at 20.0m/s calculate the acceleration
• An atom of _________ has an atomic mass of ______ because it has ______ protons and _____ neutrons ?
Answer:
carbon 12 6 6
Explanation:
Which of the cells shown is a prokaryote?
A) muscle cell B) nerve cell C) bacterium D) red blood cell
What is the windward side of the sand dune
Answer:
A dunes windward side is the side where the wind is blowing and pushing material up. A dunes slip face is simply the side without wind. A slipface is usually smoother than a dunes windward side. A collection of dunes is called a dune belt or dune field.
Explanation:
Hope this helps...
Max Plank created the idea of quanta4 or quantum energy. This is?
Answer:
A theory of physics in which energy exists only in discrete quantities, called quanta. It was originated in 1900 by the German physicist Max Karl Ernst Ludwig Planck (1858–1947), who suggested that electromagnetic radiation is quantized, i.e. it can be emitted or absorbed only in tiny packets, not continuously.
Explanation:
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The example of a unicellular organism is amoeba
coal mining environmental impact
Explain what impact coal mining has and what it affects
CAN SOMEONE PLS HELP THANK U
Answer:
There are significant environmental impacts associated with coal mining and use. It could require the removal of massive amounts of top soil, leading to erosion, loss of habitat and pollution. Coal mining causes acid mine drainage, which causes heavy metals to dissolve and seep into ground and surface water.
Explanation:
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Answer:
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An effective treatment for some cancerous tumors involves irradiation with fast neutrons.
The neutrons from one treatment source have an average velocity of 5.7 x 10 m/s. If the velocities of individual neutrons are known to within 2% of this value, what is the
uncertainty in the position of one of them?
__m
Here is your answer look at your image below
An atom has 21 protons, 24 neutrons, and 18 electrons. Which change will cause the atom to have more negatively charged particles than positively charged particles?
losing two protons
losing four neutrons
gaining three electrons
gaining four electrons
Answer:
ganar tres electrones
Explanation:
Answer:
gaining three electrons
What is a cup of coffee considered?
A. A solute
B. A precipitate
C. A solution
D. A solvent
Answer:
Explanation:
D. solvent
Answer:
a solution
Explanation:
Verified test check.
AgNo3.
Electrolysis happening in water.
5.6l of Oxigen goes in Anod how much Ag goes on Ch?
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Answer:
D. 1, 2, and 3
Explanation:
Who is the Father of the Periodic Table?
Answer:
Dmitri Ivanovich Mendeleev
Explanation:
Answer:
Dmitri Mendeleev
Explanation:
Which group will have an electron configuration that ends in s2?
a
Alkali metals (Group 1)
b
Halogens (Group 17)
c
Alkaline earth metals (Group 2)
d
Noble gases (Group 18)
Group 2 metals have 2 electrons in their outer shell. These two electrons are usually found in the s orbital, hence the s².
Determine mass contribution for the following isotopes of the same element.
At the end, tell me the atomic mass of the element using the mass contributions.
Do not forget your units or the question will be marked incorrect.
Isotope 2 amu: 186.956
percent abundance: 62.6%
Atomic Mass of the element ?
Answer: Not possible to find average amu with only the information provided.
Explanation:
Is there more information about the other isotopes? I don't see how one could calculate an overall atomic mass with only one isotope is known. An isotope of 186.956 with abundance of 62.6% isn't enough information. We're not told anything about the other isotopes: are they larger, smaller, and at what percentage. If one has an amu of 204.956 at 37.4%, the overall atomic mass would be quite different than if it had an atomic mass of 182.956 at 37.4%. More infornmation is required.
While Brian was cutting the end of the rubber tube, during chemistry lab, he accidently cut his finger. It was a minor cut and hardly any blood was visible. Brian should __________
a. tell his teacher immediately and do as directed.
b. go to the sink and wash his hand with soap and water.
c. place a towel over the wound and keep working.
d. continue working because he is ok.
Answer:
A because even if its a minor cut, it's always a better choice to inform someone.
How do we get mass from moles?
Which is used in radioactive dating?
O A. carbon-14
O B. index fossils
O C. hydrochloric acid
O D. law of superposition
1. What is the name of the metal which exists in liquid state at room temperature?
(a) Sodium
(b) Potassium
(c) Mercury
(d) Bromine
2. Heterogeneous mixture in which the solute particles do not dissolve and remain suspended throughout the solvent and the solute particles can be seen with the naked eye is known as:
(a) Colloidal solution
(b) Solution
(c) Suspensions
(d) both (b) and (c)
3. In tincture of iodine, find the solute and solvent?
(a) alcohol is the solute and iodine is the solvent
(b) iodine is the solute and alcohol is the solvent
(c) any component can be considered as solute or solvent
(d) tincture of iodine is not a solution
4. A pure substance which is made up of only one kind of atom and cannot be broken into two or more simpler substances by physical or chemical means is referred to as ?
(a) a compound
(b) an element
(c) a molecule
(d) a mixture
Answer:
1. mercury.
2. suspensions.
3.iodine is the solute and alcohol is the solvent.
4. A element.
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What does this picture represent?
А. 0
Hot Plate
B.
Graduated cylinder
С.
Goggles
D.
Electronic Balance
the answer is d electronic balance
How did james Chadwick know that neutrons are neutral ?
Answer:
In 1932, he tried similar experiments himself, and became convinced that the radiation ejected by the beryllium was in fact a neutral particle about the mass of a proton. ... Chadwick also noted that because the neutrons had no charge, they penetrated much further into a target than protons would.
Explanation:
The region around a nucleus in which electrons are likely to be found is called the
(1 point)
O pudding
O empty space
O atomic orbital
atomic orbit
Is it alr to have a rebound??
Answer:
Next time you're just recently out of a serious relationship, and you're craving some sort of intimacy and comfort, feel confident that a rebound might actually be a good thing as long as it's an upgrade, either physically, emotionally, a fun date, or even just finding a way to shift your mentality toward viewing. so what im saying is if your happy in that relationship stay in it and if he or she becomes a meany leave it its not goo for your health
What is the density of a 500g box whose volume is 67 ml?
Answer:
7.46 g/mLExplanation:
The density of a substance can be found by using the formula
[tex]density = \frac{mass}{volume} \\[/tex]
From the question
mass = 500 g
volume = 67 mL
We have
[tex]density = \frac{500}{67} \\ = 7.462686[/tex]
We have the final answer as
7.46 g/mLHope this helps you
Mrs. Sprague wants to determine which type of ball has the highest bounce. she
drops a tennis ball, soccer ball, then a basketball from a height of 15 feet, and
measures and records how high each type of ball bounces back up.
What is the Independent Variable in this experiment?
A.the different types of balls being tested
B.the height of the drop
C.the height of each bounce
D.the measuring tape
PLEASE HELP
Answer:
Explanation:
It's going to be the height of the drop. That is kept as a constant. The dependent variable is how high each ball bounces.
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1. matter
2. oxygen
3. water
4. hydrogen
5. compound
hope it helps :)
Fe-C-Cr alloy is covalent or ionic?
Answer:
covalent....................
a helium laser emits light with a wavelength of 633nm. what is the frequency of light
Answer:
14 ft 7 inches
step-by-step explanation:
since each model inch corresponds to 25 real inches, 7 model inches will correspond to
7×25" = 175"
at 12" per foot, that is 14 feet, 7 inches.
Explanation:
