Which of the following units is NOT an official Sl unit?
A)meter
B)inches
C)second
D)kilogram
How did Edward Teller died?
Answer:
septembar 9 2003
Explanation:
he died in september 9 2003
Answer:
Your answer:
His cause of death was a stroke ( heart attack)
hope this helped you
please mark as the brainliest (ㆁωㆁ)
How many significant figures are in the following number?
5.67 x 106
3
6
4
find the odd one out and explain the reason why ? sand , sugar , salt , baking soda
Answer: Sand
Explanation: Out of all the choices, sand is the only one that cannot react with other substances.
Answer:
sand
Explanation:
all are used mostly in cookin and preparing things and are in the kitchen
How do you do a one pager online!?!?!
I couldn’t find science so I just chose chemistry
SHOW YOUR WORK!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
An experiment was conducted to find the mass of one mole of carbon atoms. The results of the experiment showed that a mole of carbon atoms had a mass of 15.78 g. The accepted value of a mole of carbon atoms is 16.00 grams. What is the percent error in this experiment?
Answer:
1.375%
Explanation:
Percent Error = measured value - accepted value/ accepted value x 100
Measured Value: 15.78
Accepted Value: 16.00
Work:
[tex]\frac{15.78-16.00}{16.00}[/tex] * 100
[tex]\frac{-.22}{16}[/tex] * 100 = -1.375
You cannot have a negative percentage. Therefore the answer is 1.375%
At the equator, the sun shine heats the air and
causes it to rise. At the north and south pole
there is less direct sun to warm the air, so this
air ______ (blank)
1. rinses
2. stinks
3. rises
4. sinks
i really need help I WILL GIVE BRAINLIEST
Based on the synthesis reaction, what would the product of the reaction be? NaPO3 + CuO → ? NaO + CuPO3 Na + P + Cu + O4 NaCuPO4 NaCu + PO4?
THE ANSWERS C YALL I GOT IT RIGHT I THOUGHT I NEEDED HELP THX THOO
Answer:
The answer is c
Explanation:
Answer:
C
Explanation:
What does a straight line represent on a distance vs time graph?
Answer:
It represents the relationship between the distance travelled and time spent as constant or at a stop.
Explanation:
This is because as the line progresses, the time increases the distance should change as well my moving up or down, in a linear equation this relationship is constand but if the line is horizontal though, the distance is not changing despite time passing which means it has come to a stop.
What is the formula for potassium nitrate?
The results of an investigation are the
(Blank)
Answer: ending results
Explanation:
8. In
studies, scientists do not interfere with what is going on.
Answer:
Observational
Explanation:
This is the answer because researchers or scientist observe the effect of a diagnostic test, treatment or other intervention without trying to change anything.
What is the mass number of beryllium
Answer:
9.012182 u
Explanation:
what is the CAS of hydrogen peroxide
1.54x10-1 L / 2.36x 10-45 solve this in scientific notation
Answer:
Fish is the best time to go
Explanation:
Chicken nuggets and a salad and some onion rings and a new charger
Need help with this
Answer:
environmentalism I think
Explanation:
...................
Answer:
2nd choice answer
Explanation:
thats ez tbh
This element has nine more electrons than Technetium
Answer:
Tellurium
Explanation:
Technetium's position on the periodic table is 43 and Tellurium's is 52
Which of the following is a noncontact force?
Answer:
gravity
Explanation: its a force that pulls you down but you are never making contact with it
Answer: Gravity
Explanation:
It pushes you down but you never actually touch it
Which of the following is one way creativity can help scientists?
Answer:
One way creativity is helpful to scientists is when they need to come up with a experiment or cure for something their imaginastion is very helpful. The reason for that is with creativity they could get answers much quicker!
Explanation:
Answer:
I agree with that answer
why are group viia elements very active nonmetals
What example of scientific thinking does Bohr response best indicate
Answer:
The Bohr model shows the atom as a central nucleus containing protons and neutrons with the electrons in circular orbitals at specific distances from the nucleus (Figure 1). These orbits form electron shells or energy levels, which are a way of visualizing the number of electrons in the various shells
PLEASE HELP ME QUICK
When an iron nail is ground into powder, its mass ____.
a. stays the same
b. decreases
c. increases
d. cannot be determined
When paper turns yellow-brown upon exposure to sunlight, what type of change is likely taking place?
a. a physical change
b. a chemical change
c. neither a physical change nor a chemical change
d. both a physical change and a chemical change
Answer:
1.It stays the same
Explanation:
because its only the natural stature of it has changed
POSSIBLE POINTS: 33.33
What is the name of the binary molecule H202? This compound is also known as hydrogen peroxide and is a popular disinfectant for cuts or
scrapes
Dihydrogen monoxide
O Hydrogen dioxide
Dihydrogen Dioxide
None of this makes any sense
Answer:
Dihydrogen Dioxide
The name of binary molecule H₂O₂ is also known as hydrogen peroxide and is a popular disinfectant for cuts or scrapes is dihydrogen dioxide. The correct option is A.
What is dihydrogen dioxide?Dihydrogen dioxide is the substance of water with extra oxygen molecules. In the dihydrogen monoxide parody, water is referred to by a strange scientific term, most frequently "dihydrogen monoxide,". It is a poisonous gas, and it is leading to the death of many people in America. It is known as DHMO.
Some of its characteristics are listed in an especially ominous manner, such as speeding up corrosion and inducing asphyxia. This substance, commonly referred to as hydrogen peroxide, is used frequently as a disinfectant for cuts and scrapes.
Thus, the correct option is A. Dihydrogen dioxide.
To learn more about dihydrogen dioxide, refer to the below link:
https://brainly.com/question/14537002
#SPJ6
Which is the electron configuration for boron? 1s22s3 1s22s23s1 1s12s22p2 1s22s22p1
Answer:
electron configuration for boron is 1s22s22p1
Answer:
D
(answer is D)
My teacher gave this assignment for homework, and I don’t get it. A little help please?
County: cell
State: Tissue
Country: Organ
Continent: Organ system
World: organism
(smallest to largest)
what does it mean to say that a hypothesis is falsifiable
Answer: This means that the answer can be proven wrong.
Explanation:
Hope this helps!!
Answer:
is means it can be proven false
23°C = ______ K
-250
296
123
23
Answer:
296
Explanation:
Tk = ºC + 273
Tk = 23 + 273
T = 296 K
A given volume of methane diffuses in 20 seconds How long will it take the
same volume of sulphur (IV) oxide to
diffuse under the same condition
(Methane = 16, Sulphur (IV) oxide=64)
Explanation:
Relative molecular mass of CH4 = 12 * 1 + 4 = 16
Relative molecular mass of SO2 = 32 + 10 *2 = 64
tSO2/tCH4 = √MSO2/MCH4
t/20 = √64/16 = √4
t/20 = 2
∴ t = 20 * 2 = 40sec
What is Polymerase Chain Reaction?
Answer:
Polymerase Chain reaction is a method used by scientists to making A LOT (millions to billions) of copies of a DNA sample which then allows scientists to take a small of that DNA and increase the amount to a very large amount to study the DNA into further detail.
Polymerase Chain Reaction (PCR)
Polymerase chain reaction (PCR) is a technique for replicating or copying a specific portion of a DNA strand; leads to millions of copies of the DNA segment technique for replicating or copying a specific portion of a DNA strand; leads to millions of copies of the DNA segment.
What does weight measure?
A: Quantity of matter in an object
B: How much space an object takes up
C: Force of gravity acting on an object
D: How long it takes for an event to occur