Answer:
yes
Explanation:
Anything that is verifiable and repeatable is likely to be true. If not verifiable and repeatable, then it may well be completely false, or at least partially false.
This holds for much more than just religious beliefs. What about political thought? One perfect example was when President Obama was pushing his ACA (Obamacare). His facile claim was that with medical coverage for all, the costs of health care would go down. Because people would take better care of themselves, avoiding those major medical bills. But that's just a banality, right? Just words that sound good. I'm not saying that morally, universal health care is wrong. I am saying, don't assume something to be true just because it sounds good. (Of course, health care costs went up, not down.)
Is it true that if you get your car washed every week, it will last longer and cost you less in the long run? Of course not. But it sounds good. People will nod their heads in mindless, lazy agreement. You'll have a cleaner car, you will most likely pay more, and it may last less long, depending on any number of factors. Exactly the same as health care
what amount (in moles) is present in 2.0g of sodium hydroxide,NaOH
Answer: 0.050 moles of NaOH
Explanation: The molar mass of NaOH is 40.0g/mole
2.0g/40.0g/mole = 0.050 moles (2 sig fig)
what is mass in chemistry definition?
Answer: mass is the amount of matter in one object or substance
Explanation:
Heisenberg's uncertainty principle stats that's isn't possible to know the exact momentum and _______ of a particle simultaneously. In terms of atomic structure, this means that we can't determine fixed ________ for electrons but can only determine the _________ of finding an electron in a given region of space.
So I had a question which was, What is the charge on a neutron?
A. neutral
Bon positive
C. negative
(Which one of those is right choice?)
Answer:
A. neutral
Explanation:
It's net charge is 0.
Hope it is helpful....Answer:
A. neutral
Explanation:
A neutron is given by formular
[tex]» \: \: {}^{1}_{0}n[/tex]
hence it's net charge is zero
Which of the following are testable?
hypotheses
laws
theories
Answer: all of them
Answer:
all the above
Explanation:
In comparing groups, the first or the second, which group was more precise or was the precision the same
Comparing the data obtained online, the first group is more precise
The reason the above selection is correct is as follows;
Question: Parts of the question appear missing from a similar question online and included here;
First Group:
[tex]\begin{array}{|c|c|c|c|c|c|c|} Team \ a &Team \ b&Team \ c&Team \ d&Team \ e&Team \ f&Team \ g\\2.77 \ cm&2.60 \ cm&2.80 \ cm&2.65 \ cm&2.75 \ cm&2.65 \ cm& 2.68 \ cm\end{array}\right][/tex]
Second Group
[tex]\begin{array}{|c|c|c|c|c|c|c|} Team \ a &Team \ b&Team \ c&Team \ d&Team \ e&Team \ f&Team \ g\\2.70 \ cm&2.78 \ cm&2.62 \ cm&2.65 \ cm&2.75 \ cm&2.80 \ cm& 2.60 \ cm\end{array}\right][/tex]
Calculations for the first group:
The average = (2.77 + 2.60 + 2.80 + 2.65 + 2.75 + 2.65 + 2.68)/7 = 2.7
The range = 2.80 - 2.60 = 0.20
The approximate ± range of the average = ±0.2/2 = ±0.1
The precision of the first measurement is 2.7 ± 0.1 cm
Calculations for the second group:
The average = (2.70 + 2.78 + 2.62 + 2.65 + 2.75 + 2.80 + 2.60)/7 = 2.7
The range = 2.80 - 2.60 = 0.20
The approximate ± range from the average = ±0.2/2 = ±0.1
The range of values from the average is approximately ±0.1 cm
The precision of the first measurement is 2.7 ± 0.1 cm
Method to determine precision:
Precision is given by the finding the average deviation and the standard deviation as follows;
[tex]\mathbf{Average \ deviation} = \dfrac{\sum \left | x - \mu \right |}{n}[/tex]
[tex]\mathbf{Standard\ deviation} =\sqrt{\dfrac{\sum \left ( x - \mu \right )^2}{n}}[/tex]
Where;
μ = The mean or average = 2.7
n = The number of items (count) of the data = 7
For the first group, we have;
[tex]\mathbf{\dfrac{\sum \left | x - \mu \right |}{n}} = \dfrac{0.07 + 0.1 + 0.1 + 0.05 + 0.05 + 0.05 + 0.02 }{7} = \mathbf{0.062857}[/tex]
The average deviation of the first group = 0.062857
∑(x - μ)² ≈ 0.0328
[tex]\mathbf{The \ standard\ deviation} =\sqrt{\dfrac{0.0328}{7}} \approx \mathbf{0.068452}[/tex]
For the second group, we have;
[tex]\mathbf{\dfrac{\sum \left | x - \mu \right |}{n}} = \dfrac{0.0+ 0.08 + 0.08 + 0.05 + 0.05 + 0.1 + 0.1 }{7} = \mathbf{0.06571428571}[/tex]
∑(x - μ)² ≈ 0.0378
[tex]\mathbf{The \ standard\ deviation} =\sqrt{\dfrac{0.0378}{7}} \approx \mathbf{0.073485}[/tex]
By using the average deviation, and standard deviation values, the deviation of the second group is more than the first group and therefore the first group is more precise
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Nguyên tố hoá học là gì
Nguyên tố hóa học, thường được gọi đơn giản là nguyên tố, là một chất hóa học tinh khiết, bao gồm một kiểu nguyên tử, được phân biệt bởi số hiệu nguyên tử, là số lượng proton có trong mỗi hạt nhân.
Hope U like my answer and my answer helped U......
I need help on this, It’s due today. Please, anybody
Answer:
1 = 252g, 2 = 2mL, 3 = 1.5mL, 4 = 3g, 5 = 225g, 6 = 0.92g/mL, 7 = 0.75g/mL, 8 = 0.71g/mL, 9 = 1.9mL, 10= 1.11mL, 11 = 76.9g
Explanation:
This problem is testing how well you can move around the equation D = m/v where D = Density (g/mL), m= mass of sample (g), v = volume of sample (mL).
The main difference between strong electrolytes and weak electrolytes is....
A. their jawline.
B. how much weight they can lift.
C. how smelly of a cheese they make.
D. how much they dissociate.
c. Mention the function of corolla.
Answer:
Overall, the main function of the corolla is to assist in the reproductive process of the plant. The petals of the corolla are designed to aid in pollination, and therefore, increase the chance of successful reproduction of the flower.
to assist in the reproductive process of the plant...
What is the Color of trioxonitrate(v)
Answer:
it's yellowish in color plz Mark me as brainliest
Answer:
It's a yellowish color like copper
What is the Color of trioxonitrate
Answer:
And the ans is yellowish
give any two reasons that hydrogen is kept in group 1 in Modern Periodic Table
Answer:
Hydrogen is usually classified as a group 1 element since it has one valence electron, just like group 1 metals.
Explanation:
5. What is common among the following phenomena?
* Blinking of traffic light
* Rotation of blades of fan
* Swinging of pendulum of a clock
a) All are chemical changes
b) All are periodic changes
c) All are undesirable changes
d) All are irreversible changes
Answer:
All are periodic changes
[And is that a todoroki pfp, I like MHA too
(・∀・) ]
What is the density of water (in g/mL) to four significant figures at 20°C?
ANSWER:
I calculated it in g/cm^3, It equals 0.9982 g/cm^3
The density of water at 20°C is found to be 0.9982 g/mL.
What is Density?Density may be defined as the classical measurement of quantity or mass per unit of volume in a particular substance. According to mathematics, density is simply characterized as mass divided by volume. That is:
[tex]Density = \frac{Mass }{Volume }[/tex]
Density typically describes how much space an object or substance takes up in relation to the amount of matter in that object or substance.
Density only significantly depends on the mass of the body as well as the volume occupied by it. The SI unit of density is kg/[tex]m^3[/tex]. The density remarkably does not vary much with respect to the temperature.
Therefore, the density of water at 20°C is found to be 0.9982 g/mL.
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#SPJ2
26,470 centimeters to meters
Answer:
264.7
Explanation:
26470 cm = 264.7 m
just move the decimal over two spaces.
Detection of nitrongen ??
Answer:
The extract is boiled with FeSO4 and acidified with concentrated H2SO4. The appearance on Prussian blue colour indicates the presence of nitrogen
Explanation:
PLS mark it brainliest
3
A substance dissolves in water to form a colourless solution. This solution reacts with aqueous
silver nitrate in the presence of dilute nitric acid to give a yellow precipitate.
What is the possible identity of the substance?
A А
calcium iodide
B
copper(II) chloride
Ciron(II) iodide
D
sodium chloride
Answer:
D) sodium chloride
i think this is the answer
Explanation:
Most Ancient Greek philosophers discusses the world around them but did not do any experiments or make detailed observations
Answer:
Because to them it was just a little bit of fiction. so they don't really think it's necessary to do experiments or make detailed observation
Explanation:
it's just like how we presently today discuss about robot talking to us like humans but it's not yet come to pass .
summarize why error is important.
the atomic number of calcium is 20 . the maximum possible numbers of electron in m-shell is a 2 b 8 c 18 d 10
Answer:
8
Explanation:
Electronic configuration of Calcium = 2, 8, 8, 2
M shell = 3rd energy level
Maximum number of shells in m shell is 8
What are two factors that can change the rate of a chemical?
Answer:
the surface area of a solid reactant.
temperature.
presence/absence of a catalyst.
Classify the following properties of the element
silicon as chemical or physical properties:
a. blue-gray color
b. brittle
c. doesn't dissolve in water
d. melts at 1410°C
e. reacts vigorously with fluorine
We have that this how they differ
Physical properties
Blue-gray color BrittleChemical Properties
Doesn't dissolve in water Melts at 1410°C Reacts vigorously with fluorine
From the Question we are told that
Silicon properties:
a. blue-gray color
b. brittle
c. doesn't dissolve in water
d. melts at 1410°C
e. reacts vigorously with fluorine
Physical properties
This Refer to Properties that can be seen and Measured
While
Chemical Properties
This are Refers to the effect of the element in reactions
Therefore
Physical properties
Blue-gray color BrittleChemical Properties
Doesn't dissolve in water Melts at 1410°C Reacts vigorously with fluorineFor more information on this visit
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How does water vapor in the air change state below the freezing point
Answer:
Water vapor molecules in the air near the can cooled when energy from the air transferred to the cold can. These water molecules slowed down, condensed to liquid water, and then froze to become ice. Your can might have some water and some ice on the outside of it.
Explanation:
Which statement best explains why hydrogen's atomic number is equal to its mass? (1 point)
O Hydrogen is in the first row and the first column of the periodic table.
O Hydrogen has one electron and one proton.
O Hydrogen does not have any neutrons.
O Hydrogen is stable, with two electrons in its outer shell.
We have that The Mass atomic number is equal to its mass number of Hydrogen because it bears no Neutrons .
The Mass atomic number is equal to its mass number of Hydrogen because it bears no Neutrons .The Hydrogen atom is devoid of any neutron.The hydrogen atom is made up of one electron and one proton.
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Answer:
1. A mental can be hammered into thin sheets and nonmetals are brittle
2. C vanadium
3. C silicon
4. B hydrogen does not have neutron
5. B francium has few valence electrons but they are in a higher energy level
annnoymousheyy avatar
6. A.
protons = 31
neutron = 39
electron = 28
7. C isotopes that are naturally occurring and unstable always exist in trace amount
8. C atomic number
9. B electrons move freely in curved paths around the nucleus
10. A low energy alpha particles passing through a field of high mass number particles
annnoymousheyy avatar
11. C on the right side of the periodic table
12. A nitrogen
13. A fluorine , chlorine , and iodine
14. C an ionic bond is likely because they will want to give away two valence electrons in order to become stable
15. D -2
annnoymousheyy avatar
16. The change in atomic number from 10 to 11
implies a change from a noble gas to a highly
reactive group 1 element. As a result of this,
reactivity increases. The atomic number of an element tells us the group to which the element belongs in the
periodic table.
annnoymousheyy avatar
An atomic number of 10 shows a filled outermost shell which is characteristic of the noble gases. Hence, as we move from this atomic number of
10 to an atomic number of 11, reactivity increases
positively. Atomic number 11 corresponds to a highly
annnoymousheyy avatar
17. The periodic table shows a correlation between the strength of the ionic connection and the position of the elements on the table. Because metals are positively charged and non-metals
annnoymousheyy avatar
are negatively charged, if you start on the left side of the periodic table and work your way right, the ionic charge and radius will gradually decrease and the charge will lessen.
To clarify, oxygen is a nonmetal with a little negative charge, whereas lithium is a metal with a positive charge
Explanation:
Someone plz help me :(
Answer:
B and A.
Explanation:
Many of the great scientists were religious. But the answer is not D.
A scientist may have strong opinions. That was certainly true of Newton. Most of the time he was right. Still the answer is not C. Science requires an open mind.
The answer is between A and B. Many discoveries were made looking at the natural world. That may provide the inspiration. But I don't think it is the answer. I'm going to say A
B is the other answer. Between A and B many scientific truths have been discovered.
What isotope will be formed by the fusion of a H-1 isotope and a H-3 isotope? Would the
product be a stable Isotope? Explain.
|
Answer:
Use the edit icon to pin, add or delete clips.
Explanation:
hfdknvd hcde
anyone know valency of phosphide and phosphite please tell me and also they are not same .If you know can i get their symbol too please
i found this. there's more coming up
A dehydration reaction (or condensation reaction) is the process in which _____. See Concept 5.1 (Page) View Available Hint(s)for Part A water molecules are produced as a polymer is formed from monomers the bonds between the individual monomers of a polymer are broken by the addition of water molecules water molecules are attracted to each other water molecules are used as a source of raw material to break down polymers to monomers None of the choices is correct.
A dehydration reaction (or condensation reaction) is the process in which water molecules are produced as a polymer is formed from monomers.
A chemical reaction is the process by which substances called reactants are transformed to another substance known as products through the breaking up or building up of bonds between the reactants.
There are different types of chemicals reaction which includes condensation reaction.
Condensation reaction involves the combination of two smaller molecules known as monomers to for one larger molecule known as polymer with the loss of water molecule.
Condensation reaction is specifically called dehydration reaction due to the loss of water molecule that is involved.
Therefore, a dehydration reaction (or condensation reaction) is the process in which water molecules are produced as a polymer is formed from monomers.
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Why does the author include information about bread and sandwich wrappings in the article?
(A) to show that the scientific method is often used to understand things about food
(B) to provide an example of something that can be tested by the scientific method
(C) to demonstrate the problems that can be caused by improper seals and wrappings
(D) to help evaluate how the weight of bread can show how much moisture it has
Answer:
what is the story about actually.i think it's from ur lesson
Explanation:
certain breads mold easily...(fact)..
especially white bread., when exposed to any moisture, from refrigeration, or freezing..
when taken out of (cold environment), humidity in air causes molding because you take it from cold to/warm environment.
check expiration dates, keep refrigerated, and inspect 4 molding. Companies like WMART, buy in bulk, when on shelf, defrosts,, then has molding within expiration dates..
