Answer:
The first option, aka Opick it up off the gound within 10 seconds, and it's o.k. to eat
Explanation:
The 10 second rule is a rule when you drop foods, but if you get it off the floor under 10 seconds, you can eat it.
Did you know that food picked up under 10 seconds and after 10 seconds has almost the same number of bacterias? The 10 second rule is basically worthless.
A ball rolls from a to point B the total energy of the ball at point a is the same as the sum of its potentlal Energ and kinetic energy at point B which statement best explains the situation 
HELP!!!!!What is the molar mass of a gas which has a density of .249 g/L at 20.0 degrees Celsius and a pressure of .95 atm?
Answer:
6.31g/mol
Explanation:
Using the ideal gas equation;
PV = nRT
Where;
P = pressure (atm)
V = volume (L)
n = number of moles (mol)
R = gas law constant (0.0821 Latm/molK)
T = temperature (K)
Mole (n) = mass (m)/molar mass (Mm)
* Mm = m/n
Also, density (p) = mass (m) ÷ volume (V)
PV = nRT
Since n = M/Mm
PV = M/Mm. RT
PV × Mm = m × RT
Divide both sides by V
P × Mm = m/V × RT
Since p = m/V
P × Mm = p × RT
Mm = p × RT/P
Mm = 0.249 × 0.0821 × 293/0.95
Mm = 5.989 ÷ 0.95
Mm = 6.31g/mol
PLEASE ANSWER CORRECTLY AND ONLY IF U KNOW! IS IT A B C OR D?!
Answer:
A
Explanation:
There are three states of mater; solid liquid and gas. The sold state is the difficult to compress while the gaseous state is quite easy to compress.
A gas is easily compressed because the particles in a gas are far apart from each other. A solid is difficult to compress because the particles of a solid are close together. From all the above statements, it is easily deducible that the compressibility property of a substance in a particular state of matter depends on the proximity of the particles to each other, hence the answer above.
How many grams are in 5.4 moles of K2SO4
Answer:
The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles K2SO4, or 174.2592 grams.
Explanation:
The potassium sulphate( [tex]K_{2} SO_{4}[/tex] )contain 940.95 gram in 5.4 moles.
What is mole?A mole is described as the quantity of a material that includes precisely 6.02214076 X [tex]10^{23}[/tex] of the substance's elementary constituents.
Given data:
Mole = 5.4
Molar mass = 174.25 g/mol
Mass = ?
Mole can be calculated by using the formula:
Mole = mass / molar mass
Put the value of given data in above equation.
Mass = Mole × molar mass
Mass = 5.4 mole × 174.25 g/mol
Mass = 940.95 gram
Therefore, there are 940.95 gram in [tex]K_{2} SO_{4}[/tex]
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What are one advantage and one disadvantage of sexual reproduction?
What is one advantage and one disadvantage of asexual reproduction?
Answer:asexual- Energy is not required to find a mate. Offspring are genetic clones. A negative mutation can make asexually produced organisms susceptible to disease and can destroy large numbers of offspring. Some methods of asexual reproduction produce offspring that are close together and compete for food and space.
Explanation:During sexual reproduction the genetic material of two individuals is combined to produce genetically diverse offspring that differ from their parents.
What is Higgs boson particle ?
Answer:
The Higgs boson is an elementary particle in the Standard Model of particle physics produced by the quantum excitation of the Higgs field, one of the fields in particle physics theory. In the Standard Model, the Higgs particle is a massive scalar boson with zero spin, no electric charge, and no colour charge.
Which of the following best represents the properties of an acid?
Answer:
they r water soluble and sour in taste.hope it helps.
stay safe healthy and happy.An object has an actual mass of 34.85 grams. Johnny measures the object to have a mass of 35 grams after rounding. What is Johnny's percent error of the object?
Answer:
1.15.........................
Help please !!!!!!!!!!!!
the answer to your question is a increase
What are the materials that good conductors and insulators?
Conductors
Silver
Gold
Copper
Aluminum
Mercury
Steel
Iron
Seawater
Concrete
Mercury
___________________
insulators
Aluminum foil
Glass
Air
Plastic
Rubber
Porcelain
Wood
Help!!!!!!!! Please
Answer:d stay the same as well
Explanation:
sorry if im
wrong
All of the following are daily weather conditions except
temperature
rainfall
season
Answer:
season
Explanation:
the season changes so it isnt different daily
Answer:
Season
Explanation:
PLEASE HELP!
See picture
Answer:
See Explanation
Explanation:
The equation of the reaction;
KHSO4(aq) + KOH(aq) -------> K2SO4(aq) + H2O(l)
Number of moles of KHSO4 = 49.6 g/136.169 g/mol = 0.36 moles
Since the reaction is in a mole ratio of 1:1, 0.36 moles of K2SO4 is produced.
Number of moles of KOH = 25.3 g/56.1056 g/mol = 0.45 moles
Since the reaction is 1:1, 0.45 moles of K2SO4 is produced
Hence K2SO4 is the limiting reactant.
Mass of K2SO4 formed = 0.36 moles of K2SO4 * 174.26 g/mol = 62.7 g
So;
1 mole of KHSO4 reacts with 1 mole of KOH
0.36 moles of KHSO4 reacts with 0.36 * 1/1 = 0.36 moles of KOH
Amount of excess KOH = 0.45 moles - 0.36 moles = 0.09 moles
Mass of excess KOH = 0.09 moles * 56.1056 g/mol = 5 g of excess KOH
Balance and indicate what type of reaction
C6H12 + O2 → CO2 + H2O
Balanced equation is [tex]C_6H_{12}[/tex] + [tex]9O_2[/tex] → [tex]6CO_2[/tex] + [tex]6H_2O[/tex].
What is the balanced equation?A balanced chemical equation occurs when the number of the atoms involved on the reactants side is equal to the number of atoms on the products side.
Balanced equation is [tex]C_6H_{12}[/tex] + [tex]9O_2[/tex] → [tex]6CO_2[/tex] + [tex]6H_2O[/tex]. Where there are 6 carbon atoms, 18 oxygen atoms, and 12 hydrogen atoms.
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Which of the following statements describes electromagnetism?
A. Magnetism and electricity both include protons and electrons.
B. Magnetism can cause electrons to flow, and electricity can make a
wire magnetic
C. Electrons are attracted to the protons in magnets.
O D. Magnetism and electricity are both used by society to do work.
Answer:
b
Explanation:
The statement that is true about electromagnetism is Magnetism can cause electrons to flow, and electricity can make a wire magnetic. The correct option is B.
What is electromagnetism?Electromagnetism is a term for the force that acts between electrically charged particles. The force that acts between charged ions and this force is exhibited in the magnetic field.
Examples of electromagnetism are radio and television waves, ultraviolet light, infrared rays, visible light, X-rays, microwaves, and gamma rays.
When the force is created, the current move through the wire or conductor, by moving, a magnetic field is created on the conductor where the current is moving.
Thus, the correct option is B. Magnetism can cause electrons to flow, and electricity can make a wire magnetic.
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Determine the number of atoms that are in 1.15 mol of Cl 2.
Answer:
Explanation: I think its 4.91 x 10^25. Im not very sure, i just multipled 1.15 mol by the molar mass of Cl 2, which was 70.9 g. Then I multiplied that by avogadro's number. sorry if im wrong
You place new batteries in your flashlight. After taking off, you find it does not work anymore. What might have gone wrong?
how many moles of cacl2 are in 10.5g of cacl2?
Answer:
0.09460823181719888
Explanation:
Round to whatever decimal point is needed for your answer.
help me get this right no links
Answer:
D
Explanation:
Because the Earth rotates through two tidal “bulges” every lunar day, coastal areas experience two high and two low tides every 24 hours and 50 minutes!!!
6. Which of the following forces occurs when forces push or pull in opposite directions?
a) tension
c) torsion
b) shear
d) compression
Answer:
Shear
Explanation:
22. Which statement describes the likely metabolic impact of cyanide
production on clover plants?
M. Cyanide is nontoxic to clover plants because they produce ATP without
the electron transport in the mitochondria.
P. Cyanide is toxic to clover plants because they use cytochrome c oxidase
for electron transport in the mitochondria.
R. Cyanide is toxic to clover plants because they use cytochrome c oxidase
for ATP synthesis in the chloroplasts.
s. Cyanide is nontoxic to clover plants because they carry out electron
transport in chloroplasts rather than in mitochondria.
Answer:
M
Explanation:
Hope it helped u alot
P. Cyanide is toxic to clover plants because they use cytochrome c oxidase for electron transport in the mitochondria.
The correct option is B.
Where is cyanide found?Various bacteria, fungi, and algae have the ability to produce cyanides. Tapioca, spinach, willow shoots, almonds, string beans, fruit seeds, and car fumes are other items that contain cyanides.
What goods include cyanide?Smoking cigarettes and the byproducts of the combustion of synthetic fibers, including plastics, contain cyanide. Combustion products are chemicals that are released while combustion. The paper production, textiles, and plastics all use cyanide. The chemicals used it to develop pictures include it. Unfortunately, cyanide is not like other materials. By utilizing this approach, you simply cannot develop a natural tolerance to cyanide.
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The complete question is -
Which statement describes the likely metabolic impact of cyanide
production on clover plants?
A-M. Cyanide is nontoxic to clover plants because they produce ATP without the electron transport in the mitochondria.
B-P. Cyanide is toxic to clover plants because they use cytochrome c oxidase for electron transport in the mitochondria.
C-R. Cyanide is toxic to clover plants because they use cytochrome c oxidase for ATP synthesis in the chloroplasts.
D-S. Cyanide is nontoxic to clover plants because they carry out electron
transport in chloroplasts rather than in mitochondria.
what happens to the food as it undergoes this stage
The first step in the digestive process happens before we even taste food. Just by smelling that homemade apple pie or thinking about how delicious that ripe tomato is going to be, you start salivating — and the digestive process begins in preparation for that first bite.
Almost all animals have a tube-type digestive system in which food:
enters the mouth
passes through a long tube
exits the body as feces (poop) through the anus
Along the way, food is broken down into tiny molecules so that the body can absorb nutrients it needs:
Protein must be broken down into amino acids.
Starches break down into simple sugars.
Fats break down into into fatty acids and glycerol.
given a mixture of lead to oxide ammonium chloride and sodium chloride describe how a mixture can be separated to obtain a sample each
Answer:
There are way in separating mixtures of chloride salts such as that of sodium chloride and ammonium chloride. It can be done by crystallization, filtration, and sublimation. The easiest method among the three is separation by sublimation.
What are the two halves of the brain
Answer: left and right hemisphere ya
Explanation:
11. What is the force between two electrons
Answer:
The attractive force between the electrons and the nucleus is called the electric force.
Explanation:
Answer:
Electric force
Explanation:
The attractive force between the electrons and the nucleus is called the electric force.Experiments have shown that the electric force between two objects is proportional to the inverse square of the distance between the two objects.
Does the half life of oxygen-18 impacts its use ( explain)
Answer:
O-18 is used as a tracer in many hydrologic studies. It is most often used as a component in a mixing-model and hydrograph separation, as O-18 acts conservatively and is applied naturally and uniformly over broad areas. O-18 can be used when different sources (old water/new water) have different isotopic values.
What is the concentration of a solution made by dissolving 0.99mol of acetic acid in enough water to make 0.58L of solution?
Answer:
[CH₃COOH] = 1.70 M
Explanation:
When we talk about concentration we can determine Molarity
Molarity determines the moles of solute that are contained in 1L of solution.
In this case our solute is the acetic acid.
M = mol/L
M = 0.99 mol /0.58L → 1.70 M
We can also make a rule of three
In 0.58 L of solution we have 0.99 moles of solute
In 1 L of solution we may have (1 . 0.99) / 0.58 = 1.70 moles
Acetic acid is a weak acid, partially dissociated in water.
CH₃COOH + H₂O ⇄ CH₃COO⁻ + H₃O⁺ Ka
The tapir and agouti are ___________ found in the Amazon Rainforest.
A.Carnivores
B.Omnivores
C. Herbivores
D. Decomposers
"science"
Which description applies to all atoms of an element? flammable visible under a microscope different alike
Answer:
I think its alike.... Pretty sure actually
6. This means that the relationship between amplitude and wavelength is
a. direct
b. inverse
C. not related
Answer:
Explanation:
a. direct
Amplitude and wavelength are the property of the waves. These both are directly related to each other. Thus, option A is correct.
What are wavelength and amplitude?Amplitude is the measure of the wavelength that is estimated from the peak or crest to the trough of the wave. Wavelength is the measurement of the length of the wave from one peak to the crest of another wave.
Though there is no relationship between the wavelength and amplitude of the waves they can be said to have direct relation as wavelength and frequency are indirectly related.
Therefore, option A. direct relation is correct.
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