Answer:
I think option ( b) tea is right answer
which elements are more likely to form a compound, sodium and chlorine or lithium and neon
Answer:
Sodium and Chlorine
Explanation:
Elements are most likely to form an ionic bond when one element is a metal and the other one is a nonmetal.
Sodium is a metal and Chlorine is a nonmetal.Lithium is a metal and Neon is a noble gas.So as you can see, sodium and chlorine is the answer.
Name the acid found in each of the given substances:
1. Juice of lemon
2. vinegar
Answer:
citric acid us found in juice of of lemon.
vinegar contains acetic acid.
hope this helps you.
When potassium is added to water, what causes the explosion?
Answer:
The highly unstable pure sodium or potassium wants to lose an electron, and this splits the water atom, producing a negatively charged hydroxide ion and hydrogen and forming an explosive gas that ignites.
Explanation:
PLS HELP what is 2x10^3 in long form
Answer:
2x1000 = 2000
Explanation:
10^3 = 10×10×10 = 1000
exponent , the ^3 means multiply the number by itself 3 times, if it was ^4, it would be 4 times and so forth.
another trick for 10s is just put the 1 and the exponents number of 0's after the 1. so in this case, put three 0's: 1,000
Answer: 2000 or 2000.00 in decimal form if you need
Explanation: Real number to turn Scientific to Real Number you must type the exact scientific notation into a scientific calculator including the Times symbol and it should convert it In other words Multiply the decimal number by 10 raised to the power indicated. Ex: 3.456 x 10^4 = 3.456 x 10,000 = 34560
A measure of the average kinetic energy of particles is
length
temperature
mass
volume
Which equation correctly relates the energy of electromagnetic radiation to its frequency?
We have that The Equation that relates energy of electromagnetic radiation to its frequency is Planck's equation
Planck's equation
From the Question we are asked
An equation correctly relates the energy of electromagnetic radiation to its frequency?
Generally
The Equation that relates energy of electromagnetic radiation to its frequency is Planck's equation which is given as
E = hf
Where
h=Planks constant
E= electromagnetic radiation
f=Frequency
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The birdseed above is a mixture of several different types of sizes of seeds. Is the mixture a…
A) homogeneous
B) heterogeneous
Answer:
Answer B: Heterogeneous
Explanation:
im pretty sure this is it if its not im really sorry
2. What is frequency?
Fre
Answer:
Frequency is the rate at which something occurs or is repeated over a particular period of time
Explanation:
The frequency is like wave patterns including sound, electromagnetic waves, electrical signals, or other waves, this expresses the number of cycles of the repetitive waveform per second.
Answer:
It is the number of occurrences of a repeating event over time. Unit is hertz (Hz)
Explanation:
[tex]f = \frac{1}{t} [/tex]
how soap is made? using potash
Explanation:
Potassium Hydroxide is a type of lye specifically used to make liquid soap. It is also known as potash, lye or even KOH. This is the chemical that induces saponification of the fats and oils to create liquid soap.
Explanation:
Potash can actually be used to make liquid soaps, bar soaps and jelly soaps by adding NaOH of course for solid soaps. You can use all types of potassium salts to saponify lipidsthe size of the negative charge of an electron us exactly the same as the size of the positive charge of a proton. what is the overall charge of the helium atom
pha 1000ml dung dịch natri hydroxyd xấp xỉ 0.1N. Xác định độ chuẩn bằng 10ml đ acid hydroclorid 0.1N có K=0.950 hết 11ml dung dịch natri hydroxyd vừa pha
a)tính hệ số hiệu chỉnh K của dung dịch natri hydroxyd
b)tính toán để điều chỉnh nồng độ 990ml dung dịch natri hydroxyd
Answer:
please translate to English so I can help
Explanation:
the reason is bc I cant read this so jus comment in English and I'll reply the answer
Could someone help me please?
Answer:
I think its A And C OR D HOPE ITS RIGHT
Explanation: BY THE LOVE YOUR AVTAR
True statements are:
Density increases if the volume of an object decreases and the mass remains the same.
Density increases if the mass of an object increases and the volume remains the same.
Density remains the the same if the mass and volume of an object increases proportional.
Further:
Density = Mass/Volume
How do you determine the difference between an element and a compound?
Answer: An element is a single atom.
Explanation:
An element cannot be divided into smaller parts (that was true before the physicists built atomic weapons and the Large Hadron Collider). But the definition of an atom was establish before Einstein, Oppenheimer, and Rutherford. An element is an atom. A compound is two or more atoms bonded together. Carbon is an element, and one carbon all by itself is an atom. A carbon that has some hydrogens attached (e.g, methane, CH4) are compounds. An oxygen atom is just sa single O. We write O2 since that is the form it takes in nature. O is an atom, O2 is a molecule.
A 5.00 cm^3 sample of gold has a mass of 96.5 g. Calculate the density of gold.
Answer:
[tex]\boxed {\boxed {\sf 19.3 \ g/cm^3}}[/tex]
Explanation:
We are asked to calculate the density of gold. The density of a substance is its mass per unit volume. It is calculated using the following formula.
[tex]\rho= \frac{m}{v}[/tex]
The mass of the sample is 96.5 grams. The volume of the sample is 5.00 cubic centimeters.
m= 96.5 g v= 5.00 cm³Substitute the values into the formula.
[tex]\rho= \frac{ 96.5 \ g}{5.00 \ cm^3}[/tex]
Divide.
[tex]\rho= 19.3 \ g/cm^3[/tex]
The density of gold is 19.3 grams per cubic centimeter.
3. What are the values of the graduations (urmarked linas) in each of the
following graduated cylinders?
Answer:pp
Explanation:
Placing sodium metal into water creates a bright light and a lot of heat – an explosion. Sodium metal disappears during this explosion. Is this a chemical change?
Answer:
Yes because it is something that cannot be turned back
I need help on first wuestion
Answer:
Atom then element
Explanation:
Scientists once thought the most fundamental building block of matter was a particle called the atom. Now we know that the atom is made of many smaller pieces, known as subatomic particles. Every atom contains a central core called the nucleus, made of particles called protons and neutrons.
An element is a pure substance and is made of only one type of atom; it cannot be broken down into a simpler substance.
How is the kinetic energy of molecules changing when the molecules move faster?
The kinetic energy ...
a
is not changing
b
depends on the molecules.
С
is decreasing.'
d
is increasing
Answer:
I think it is increasing
An electrical engineer measures the frequency of a satellite radio transmission. The frequency is 584 GHz. What is the frequency in hertz? Write your answer in
scientific notation.
CAN SOMEONE HELP ME PLS!!!
Answer:
584 GHz = 584000000000 Hz
= 584×10^11 Hz
Explanation:
1 Gigahertz ( GHz) = 1000000000 Hz
Satellite uses frequencies and wavelengths to transfer the specific spectrum. The 584 GHz frequency of satellite radio transmission in hertz is 5.84 × 10¹¹ Hz.
What is the frequency?Frequency, wavelength, and wave number are the functions of the electromagnetic spectrum that are widely used to transfer the various waves for different purposes. Frequency is inversely proportional to wavelength.
The number a wavelength completes in a time period of seconds gives the frequency and is said to be calculated in Hertz (Hz). It is inversely proportional to the time period.
Given,
Frequency = 584 GHz
It is known that 1 Giga hertz = 1000000000 Hz
So, 584 GHz = 584 × 10⁹ Hz
Or 5.84 × 10¹¹ Hz.
Therefore, the frequency of satellite radio transmission in hertz is 5.84 × 10¹¹ Hz.
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Can two objects be made of the Same substance if they have the same volume
Answer: no
Explanation: theres a chance but generally no because there can be different substances in different amounts which can have similar volumes
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.
why does data need to be analyzed?
A. to find a pattern that will explain your observations
B. to come up with a good hypothesis
C. to ensure that observations were done correctly
D. to test your hypothesis
Answer: All of these options have some value in explaing why data need to be analyzed. The best single option would be, in my opinion, to find a pattern.
Explanation: The answer above does not address other valid reasons. An evaluation will add some confidence limits to your data, and therefore conclusions.
A friend says “my dad packed a banana for lunch everyday when i was in grade school i never want to see another banana again” What does this reaction demonstrate?
Answer:
maybe the person got tired of eating banana or she could have tripped on a banana peel and then they hate banana hope this helps or give you an idea
GIYS PLEASE HELP ME YURR PLEASE PLEASE
Answer: i dont think anyone know because its ghard
Explanation:
how resonance helps a musician produce music on guitar?
Answer:
So the resonance phenomenon is what allows for notes to be produced on a musical instrument at all. A guitar though makes an additional use of resonance. The body of the guitar is carefully designed to resonate when notes are played on the strings. The reason is that the body can then behave as an amplifier for the strings.
Explanation:
reference = socratic . org
How many cubic centimeters are there in 2.2 liters?
Answer:
2200d cc
Explanation:
Why is it important to do further investigations to determine if a chemical change really occurred?
Answer:
x
Explanation:
What is the uncertainty of a 0.000 g electronic balance?
HURRY!!!
Answer:
For a digital scale, the uncertainty is ± 1 in the least significant digit.
Explanation:
molecular formula of sodium carbonate
Answer:
Na2Co3 is the formula of sodium carbonate
A student measured the maximum mass of salt that can dissolve in 100 mL of water at five different temperatures. Which variable should go on the x-axis? A the mass of salt B the volume of water C the mass of water D the temperature of water (i think this is chemistry but it just says science)
The independent variable is plotted on the x-axis while the dependent variable is plotted on the y-axis.
The correct answer is D; the temperature of water
It is conventional in science experiments to plot the independent variable on the x-axis and the dependent variable on the y-axis.
As the temperature is manipulated, the measured the maximum mass of salt that can dissolve in 100 mL of water changes. This implies that mass of salt that can dissolve is the dependent variable while the temperature of water is the independent variable.
Hence, the temperature of water is plotted on the x-axis(independent variable) while mass of salt that can dissolve is plotted on the y-axis(dependent variable).
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Answer:
the temperature of the water
Explanation:
