Which of the following is NOT a correct conversion factor?
1 cm = 0.01 m
1 km = 1000 m
1 cm = 100 m
1 dm = 0.1 m
Answers
Answer: 1 cm = 100m
Explanation: Centi- is the prefix used to designate 0.01 (one hundredth) of something. 1 cm means 0.01 m.
1 cm = 100 m is NOT a correct conversion factor. Option C is correct.
what are conversion factors?The conversion factors are the factors that re-use to convert some values from unit to unit of another value like from centimeter to meter from meter to kilometer from milligram to gram.
In one centimeter it is the suffix used to denote it is the one by hundred value of the on meter or which is equal t one meter so, 1cm = 0.01 meters as it is the 1/100 part f the one-meter distance.
Therefore, Option C is correct. 1 cm = 100 m is NOT a correct conversion factor.
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Related Questions
Lavoisier made an important contribution to chemistry by _____.
developing the atomic theory of matter
developing the law of conservation of matter
developing the law of multiple proportions
coining the term "atom"
Answers
Answer:
developing the atomic theory of matter
Explanation:
What are three properties of inertia?
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2. CM motion to represent linear motion
3. dynamics discussions
What are the 2 characteristics of all matter
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Why is sodium a significant source of calories in both foods
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Answer: Sodium is made up of lots of salt.
Explanation:
Eating a lot of salt can cause your body to retain more water, which can show up on the scale as extra pounds. But we're not just talking about water weight here. High salt diets appear to be linked to higher body fat in particular, the kind of fat that accumulates around your middle.
a molecule of an element is called what?
Answers
Answer:
a molecule of an element is called atomicity
1. Is each of the following statements true or false? Correct any that are false.
a. A mole of one substance has the same number of atoms as a mole of any other substance
b. The theoretical yield for a reaction is based on the balanced chemical equation
c. A limiting reactant problem is being stated when the available quantity of one of the reactants is given in moles
d. The empirical and molecular formulas of a compound are always different.
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Employers may not fire or other wise discriminate against an employee who does which of the following
Answers
Answer:
race, religion, sex, if they are 40 or older, have a disability, pregnancy/childbirth. hope that helped
Why does magnesium chloride need to be molten in electrolysis
Answers
Answer:
this is from another brainliest answers.
Explanation:
Ionic compounds need to be molten or in solution for electrolysis to work. This is because the charged particles that make them up (ions) need to be free to move to the electrodes.
The neutrons affect the stability of the nucleus of the atom. True or False
Answers
Answer:
True.
Explanation:
This is because when the number of protons in the nucleus increases the neutrons needed for a stable nucleus increases even more rapidly.
Best of luck!!!
You are given 2 balls that are made of the same material. They are also the same size and color. One is hollow and one is solid. Determine the physical property that could be used to identify the ball as a solid.
Group of answer choices
boiling point
solubility
pH
density
Answers
Answer:density
Explanation:
it’s how’s how dens the ball is
1. What are they key characteristics scientists look for to figure of it something is real science or pseudoscience?
2. What are the five main steps in the scientific method?
3.What is a physical property?
4. What are the two types of physical properties?
Answers
Answer:
Among these warning signs are: A tendency to invoke ad hoc hypotheses, which can be thought of as “escape hatches” or loopholes, as a means of immunizing claims from falsification. An absence of self-correction and an accompanying intellectual stagnation. An emphasis on confirmation rather than refutation.oMake an observation.Ask a question.Form a hypothesis, or testable explanation.Make a prediction based on the hypothesis.Test the prediction.Iterate: use the results to make new hypotheses or predictions.3. A physical property is a characteristic of a substance that can be observed or measured without changing the identity of the substance
4.extensive and intensive properties.
PLEASE MARK ME BRAINLIESTwhat does it mean when a reaction has a negative amount of Kj
Answers
Answer:
heat is released in going from reactants to products
Explanation:
hope this helps
When sodium reacts with Iron(II)and chloride iron metal and sodium chloride are formed what are the coefficient used in this reaction?
Answers
What is the number of nitrogen molecules in 6.0 moles of N2?
Answers
Explanation:
just take the given moles and multiply it with the ratio of molecules to moles to get your answer
The number of nitrogen molecules in 6.0 moles of N2 is = 3.6 × 10²⁴
How to calculate number of moleculesAvogadro's number( 6.02 × 10²³) is equal to the number of molecules in 1 mole of substance.
That is,
1 mole of N2 = 6.02 × 10²³
6 moles of N2 = 6 × 6.02 × 10²³
= 36.12 × 10²³
= 3.6 × 10²⁴
Therefore, the number of nitrogen molecules in 6.0 moles of N2 is = 3.6 × 10²⁴
Learn more about molecules here:
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. Restate What is a physical change in terms
of particle arrangement?
Answers
Answer:
In physical changes no new materials are formed and the particles do not change apart from gaining or losing energy
Explanation:
A 147g piece of metal has a density of 7.00g/mL. A 50mL graduated cylinder contains 20.0mL of water. What is the final volume after the metal is added to the graduated cylinder
Answers
Answer: 41.0 ml
Explanation: (147g/7.00g/ml) = 21.0 ml for the metal
Add to 20.0ml to reach 41.0 ml to 3 sig figs
Match the event with the type of change.
a. Making ice cubes from water
b. Making hot water for tea
c. Using dry ice to create a foggy punch bowl
а
<
1. Changes Between Liquids and Solids
2. Changes Between Liquids and Gases
3. Changes Between Solids and Gases
a
<
av
Answers
Answer:
A-1,
B-2,
C-3 is the answer of this queation
Define the following terms:
-hypothesis:
- theroy:
-law:
Answers
Answer:
hypothesis = A tentative explanation for a question, testable through experiments.
theory = An explanation supported by many experiments, answers "why".
law = A relationship in nature supported by many experiments.
Explanation:
4. Write the electronic configuration of first 20 elements in the periodic table.
Answers
Hydrogen: 1
Helium: 2
Lithium: 2•1
Beryllium:2•2
Boron: 2•3
Carbon: 2•4
Nitrogen:2•5
Oxygen:2•6
Fluorine: 2•7
Neon:2•8
Sodium: 2•8•1
Magnesium: 2•8•2
Aluminium: 2•8•3
Silicon: 2•8•4
Phosphorus: 2•8•5
Sulfur: 2•8•6
Chlorine: 2•8•7
Argon: 2•8•8
Potassium: 2•8•8•1
Calcium: 2•8•8•2
Please give me brainliest, I spent a lot of time doing this
formation of bubbles can be associated with physical changes under certain contexts. provide examples of specific substances and describe the situations in which bubbles form during a physical change and a chemical change.
Answers
100g of radioactive mass has a half life of 5 days. Calculate the mass decayed off after 15 days
Answers
Answer:
12.5 gm
Explanation:
15 days is three half lives
100 * (1/2)^3 = 12.5 grams
Someone plz help me ;-;
Answers
Answer:
the events of the story
Explanation:
hope this helps
arlon drank 500 mL of softdrink which had a mass of 450 g.
a. 1.11 g/mL c. 0.9 g/mL
b. 50 g/mL d. 225000 g/mL
Answers
Answer:
0.9 g/mLExplanation:
The density of a substance can be found by using the formula
[tex]d = \frac{m}{v} \\ [/tex]
where
m is the mass
v is the volume of object
From the question we have
m = 450 g
v = 500 ml
[tex]d = \frac{450}{500} = \frac{9}{10} \\ = 0.9[/tex]
We have the final answer as
0.9 g/mLHope this helps you
Answer:
B) g/mL
Explanation:
Mass of Oxalic acid (solute) = 11g
Mass of Solution = 500ml
Density = 1.1 g/ml
We know that
Mass % of solute =
Massofsolution
Massofsolute×100
×
50
Mass of solution =
Volume of solution×
Density of solution
Mass of solution =
500×
1.1=
50×
11g
Mass % of the solute =
11×50
11×100
=
2%
1. What is Science?
A. The goal of science is to investigate and understand the natural world, to explain events in the natural
world, and to use those explanations to make useful predictions.
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Help me with physical science
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Answer:ok
Explanation:fish
A loud sound has a large
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Answer:
This extra energy causes the string to vibrate more, which helps it move more air particles for a longer time. A string plucked with force has greater amplitude, and greater amplitude makes the sound louder when it reaches your ear. Volume depends on amplitude. Greater amplitude produces louder sounds.
Use the information from the diagram to calculate the enthalpy of combustion for methane.
(IGNORE MY ANSWER PLZ I ACCIDENTALLY CLICKED IT)
SOMEBODY PLZ HELP ME I REALLY NEED IT PLZZZZZZZZ
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The answer is A) -604KJ
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I just took the Penn Foster test. =D you welcome!
Scientists have cited gas emission as contributing to global [blank] , which is a general increase in temperatures worldwide.
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Answer:
Warming
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PLS I NEED HELP
The distance from the Sun to Mercury is 3.598 • 10^7
miles. The distance from the Sun to Neptune is
2.798. 10^9 miles. How far is Mercury from Neptune?
Write your answer in scientific notation.
Answers
Answer:
4.44309 × 109 ( 4443090000 kilometres )
2.760936126 × 109 ( 2760936126 miles)
Please make me the brainliest! !!
Answer:
The distance of Mercury to Neptune = The distance from sun to Neptune - The distance from sun to Mercury
= 2.798 . 10^9 - 3.598 . 10^7
= 2.798 . 10^9 - 0.03598 . 10^9
= 10^9 ( 2.798 - 0.03598 )
= 2.76202 . 10^9 miles
.
.
Hope it helps
Please help it’s worth a lot!! I need the answer ASAP!!
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Answer:
Show me the previous question so I can help
