Answers
I hope it is helpful for ........
Please mark me as brainliest .......
Answer:
Revolution of the earth around the sun in its own orbit. A complete revolution of the earth is a year equal to 365 days
Explanation:
Related Questions
How can the rate of a reaction be increased?
(A) decreasing the amount of reactants
(B) having more surface area
(C) diluting a solution
(D) lowering the temperature
Answers
Explanation:
Rate of reaction can be increased by having more surface area.
Therefore,
Option B is correct✔
Answer:
b
Explanation:
HELP 20 POINTS
What is the frequency of an Electromagnetic wave has with wavelength 2.94 x 10^-8 cm?
Answers
Answer:
gccdfjjkjggffffgggggbbbhb
which particles are transferred or shared when atoms form bonds?
Answers
Answer:
The electrons are shared when atoms form bonds.
4.which is a product of the process shown above?
a. carbon dioxide
b. sugar
c. sunlight
d. water
5.where does the energy that drives this process come from?
a. oxygen
b. sugar
c. sunlight
d. water
Answers
Answer:
4. b 5.C
Explanation:
Photosynthesis makes sugar for plants and sunlight is the energy used to convert CO2 and water into glucose
The product of the process of photosynthesis is sugar and the energy to dive the process of photosynthesis comes from sunlight.
What is photosynthesis?Photosynthesis is defined as a process by which plants and other photosynthetic organisms convert the light energy in to chemical energy through the process of cellular respiration.
Some of the energy which is converted is stored in molecules of carbohydrates like sugar and starches which are made up of from carbon dioxide and water . Photosynthetic organisms which can perform photosynthesis are algae and cyanobacteria. Photosynthesis is largely responsible for producing and maintaining the content of oxygen in earth's atmosphere.
The process begins with proteins absorbing light energy which are called reaction centers and contain a green pigment which is called chlorophyll . In plants ,these pigments are present inside organelles called chloroplasts while in bacteria they are present in plasma membrane.
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A mirror forms an image because of which behavior of light?
refraction
reflection
diffraction
absorption
Answers
Answer: reflection
Explanation:
A mirror forms an image because of reflection of light. Therefore, the correct option is option B among all the given options.
What is light?Light is the electromagnetic radiation that is visible with the eye. Electromagnetic radiation has a very broad wavelength range, ranging from gamma rays having wavelengths shorter than around 1 1011 metre to radio waves with wavelengths measured in metres.
The spectral areas next to the visible band, infrared at one end as well as ultraviolet at the other, are often commonly referred to as light. The velocity of light in the vacuum is indeed a basic physical constant, with the current accepted value being 299,792,458 meters per second, or approximately 186,282 miles a second. A mirror forms an image because of reflection of light.
Therefore, the correct option is option B.
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Q. Which change has a negative entropy change of the system
A)Ice smell
B)Water heating up
C)Salt dissolving
D) none of these
Answers
Answer:
D) none of these
Explanation:
fill in the blank please
amino acids as _____ are to words
Answers
Answer:
Sentences are where there is a beginning and an end of a section of a paragraph. Letters are individual parts of sentences.
The answer that would make the MOST sense would be SENTENCES
1. Which statement is true about the relationship between chromosomes, genes and
traits?
A. Genes are found within traits, and their codes are used to make chromosomes.
B. Chromosomes are found within genes, and their codes are used to make traits.
C. Genes are found within chromosomes, and their codes are used to make traits.
D. One gene is found on every chromosome and they are used to make traits.
Answers
Answer:
the answer is C.Explanation:
When naming covalent compound both the first and second element in the fomula always receive
a prefix to represent the number of each element present in the chemical formula.
Answers
Answer:
Yes.
Explanation:
Yes, both the first and second element in the formula of covalent compound always receive a prefix to represent the number of each element present in the formula in order to show the percentage or proportion of each element in the formula of covalent compound. Prefix refers to addition of word, letter, or number at the beginning of something so here number placed in front of element indicates the prefix.
Pieces of DNA that pass genetic traits from parent to offspring
A. Phenotype
B. Gene
D. Allele
Answers
Answer:
gene
Explanation:
A sample of gas in a balloon has an initial temperature of 42 ∘C and a volume of 1.10×103 L . If the temperature changes to 86 ∘C , and there is no change of pressure or amount of gas, what is the new volume, V2, of the gas?
Answers
Answer:
1250L or 1.25*10^3
Explanation:
Use the combined gas law, [tex]\frac{P_{1} V_{1}}{T_{1} }[/tex]=[tex]\frac{P_{2}V_{2}}{T_{2} }[/tex]
Put the value for the temperature(in Kelvin) and volume, and you can just put 1 for P1 and P2 because it stays the same.
I'll assume that you meant to put 1.10*10^3L
6b
Which of the following is a starting compound during
cellular respiration?
Answers
Answer: Oxygen and glucose.
Explanation:
Oxygen and glucose are both reactants in the process of cellular respiration. The main product of cellular respiration is ATP; waste products include carbon dioxide and water.Jun 1, 2020
For the following reaction, calculate how many moles of each product are formed when 4.05 g of water is used.
2 H2O → 2 H2 +02
Answers
Answer:
A. 0.225 mole of H₂
B. 0.113 mole of O₂.
Explanation:
We'll begin by calculating the number of mole in 4.05 g of water (H₂O). This can be obtained as follow:
Mass of H₂O = 4.05 g
Molar mass of H₂O = (2×1) + 16 = 2 + 16 = 18 g/mol
Mole of H₂O =?
Mole = mass /Molar mass
Mole of H₂O = 4.05 / 18
Mole of H₂O = 0.225 mole
Next, the balanced equation.
2H₂O —> 2H₂ + O₂
From the balanced equation above,
2 moles of H₂O produced 2 moles of H₂ and 1 mole of O₂.
A. Determination of the number of mole hydrogen produced.
From the balanced equation above,
2 moles of H₂O produced 2 moles of H₂.
Therefore, 0.225 mole of H₂O will also produce 0.225 mole of H₂.
B. Determination of the number of mole oxygen produced.
From the balanced equation above,
2 moles of H₂O produced 1 mole of O₂.
Therefore, 0.225 mole of H₂O will produce = (0.225 × 1)/2 = 0.113 mole of O₂.
Thus, 0.113 mole of O₂ is produced.
sodium hydroxide + sulfuric acid
Answers
Answer:
NaOH + H2SO4 ‐‐> 2H2O + Na2SO4;
Explanation:
NaOH+H2SO4= Na2SO4+H2O
what is the molecular formula of methanoic acid
Answers
Answer:
CH₂O₂
Mark me as brainliest plz.
Explanation:
CH2o2.is right ans hi I'm anmol kulkar from India
which event would most likely lead to a thunderstorm g i v i n g b r a i n l e s i t
Answers
Answer:
A
Explanation:
I took a test like this and my teacher said this was right so ye. hopefully I remembered correctly if its wrong im sorry ;C
Answer: A
Explanation: A thunderstorm forms when warm, moist air rises into cold air. Hope this helps. :)
How many moles are present in 2.126 g of H2O2 ?
Answers
Answer:
molecular weight of H2O2 or grams. This compound is also known as Hydrogen Peroxide. The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles H2O2, or 34.01468 grams.
1 grams H2O2 is equal to 0.029399071224542 mole.
1 grams H2O2 to mol = 0.0294 mol
10 grams H2O2 to mol = 0.29399 mol
20 grams H2O2 to mol = 0.58798 mol
30 grams H2O2 to mol = 0.88197 mol
40 grams H2O2 to mol = 1.17596 mol
50 grams H2O2 to mol = 1.46995 mol
100 grams H2O2 to mol = 2.93991 mol
200 grams H2O2 to mol = 5.87981 mol
There are 0.0625mol in 2.126 g of H2O2.
HOW TO CALCULATE MOLES:
The number of moles of a substance can be calculated by dividing the mass of the substance by its molar mass. That is;no. of moles (mol) = mass (g) ÷ molar mass (g/mol)According to this question, 2.126 g of H2O2 were given. The number of moles of H2O2 can be calculated as follows:Molar mass of H2O2 = 1(2) + 16(2)= 2 + 32
= 34g/mol
no. of moles = 2.126g ÷ 34g/molno. of moles = 0.0625molTherefore, there are 0.0625mol in 2.126 g of H2O2..Learn more at: https://brainly.com/question/21085277?referrer=searchResults
How many protons, neutrons, and electrons does 35/17 Cl ^ 1- have?
Answers
Answer:
In accordance to the pic
The number of protons in Cl-35 is 17 and the number of neutrons is 18. The number of Cl is 17 whereas the chloride ion Cl⁻ have 18 electrons.
What is chlorine?Chlorine is 17th element in periodic table. Cl is includes in the 17th group of p -block. Cl contains 7 valence electrons and it needs one more electron to attain complete configuration. It is highly electronegative and will easily gain an electron to achieve octet.
Atoms in neutral state have equal number of electrons and protons and this number is equal to the atomic number. The mass number is the sum of number of protins and neutrons.
The atomic number of Cl is 17. Hence the number of protons is 17 and the mass number is 35. So that number of neutrons is 35 - 7 =18. When Cl gains an electron it forms the anion Cl⁻. Hence, the number of electrons in Cl⁻ is 18.
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which event would most likely lead to a thunderstorm HELP GIVING BRAINLIEST
Answers
Answer:
A
Explanation:
i got right
anyways i passed my chemistry final yall. yupp
Answers
Explanation:
CONGRATULATIONS!!!!!
Answer:
chemistary more lliek dumastry ahaha
Explanation:
Plz help
Plz and thank u
Answers
what is the Curie used to measure
Answers
Answer:
it's used to measure intensity of radioactivity in a sample of material
All of these are types of slime except
A cornstarch slime.
B algal slime.
C slime molds.
D bacterial slime.
Answers
Answer:
imma say slime molds
Explanation:
if I'm wrong please tell me
Answer:
algal slime i think
Explanation:
The larges lakes in the world are found in:
A. Asia
B. Europe
C. North America
D. South America
Answers
C. North America
Explanation:
PLEASE HELP ME!!!!!!!!
Answers
Answer:
I think the answer is false
Which pair of elements will form a covalent bond? A. Aluminium and Chlorine B. Carbon and Sulfur C. Lithium and Oxygen D. Potassium and Chlorine
Answers
Explanation:
Aluminum and chlorine form covalent bond.
Therefore,
Option A is correct✔
Which term best describes the molecule shown below?
Answers
Answer:
Unsaturated alkene
Explanation:
other answer was wrong
There are two types of chemical compound one is covalent compound and other is ionic compound, covalent compound formed by sharing of electron and ionic compound formed by complete transfer of electron. Therefore, the correct option is option D.
What is chemical Compound?Chemical Compound is a combination of molecule, Molecule forms by combination of element and element forms by combination of atoms in fixed proportion.
An ionic compound is a metal and nonmetal combined compound. Ionic compound are very hard. They have high melting and boiling point because of strong ion bond.
There are two types of compound in organic chemistry, one is saturated and other is unsaturated. Saturated is the one which possess all single bond and unsaturated is the one which possess either double or triple bond. The given chemical compound is unsaturated alkene.
Therefore, the correct option is option D.
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In the reaction C + O2 → CO2, 18 g of carbon react with oxygen to produce 72 g of carbon dioxide. What mass of oxygen would be needed in the reaction?
18 g
54 g
72 g
90 g
Answers
Answer:
54g of O2 reacted in the reaction
Answer:
54g
Explanation:
What does the chemical formula C3H6O2 tell about a molecule of the compound it represents?
It is made up of 3 atoms of 11 different elements.
It is made up of 11 atoms joined in a straight line.
It is made up of 11 total atoms of 3 different elements.
It is made up of 1 atom composed of 3 different elements.
Answers
Answer:
it number 3 it's made up of total 11 atoms of 3 different elements .
Answer:
c
Explanation:
A particle that travels around the nucleus of an atom in orbitals is called a(n)
quark.
proton.
neutron.
electron.
Answers
Answer:
The electrons of an atom travel around the nucleus like a solar system or cloud. The protons and neutrons are both inside of the nucleus that the electrons travel around.
The answer is D, electrons!!