Answer:
include all compounds.
Answer:
CO2 is a pure compound
Explanation:
Element non examples include all compounds, which are substances made when two different types of atoms form a chemical bond. Any material made by mixing elements is no longer an element. Anytime you see a chemical formula with more than one element symbol in it, it's an element non example.Pure elements are Substances which are made up of only one kind of atom. Air is a mixture of element and compound whereas alcohol in water is a mixture of compounds. CO2 is a pure compound and not an element.
What is cr2s3 bond type?
Answer:
ionic bond
Explanation:
because cr is a metal and s is non-metal
2. Predict which food sample you think has the most stored energy
Explain.
Type your answer here.
TT
B 1
IC
Answer:
carbohydrate yam rice
please help!!!!!!!!!!!
Answer:
I think it is B
Explanation:
Both prokaryotes and eukaryotes have all of those things except for organelles, which only eukaryotes have (also prokaryotes are smaller not eukaryotes)
In what way is a decomposing log in a forest a microhabitat ? It supports small organisms within a habitat, while the forest houses the log itself It supports small organisms within a habitat, while the forest houses the log itself it provides camouflage for organisms to protect themselves it provides camouflage for organisms to protect themselves it decomposes matter that enriches the soil it decomposes matter that enriches the soil it is a large community of organisms that occupy a large habitat
Answer:
A microhabitat is a small or localized ecosystem in a larger ecosystem where a range of small populations of plants and animals sustain and main a micro-ecosystem.
Rotting or decomposing log is an example of the microhabitat as it provides food shelter, and various plants and organisms found and interact to make it an ecosystem. There are also interactions between biotic and abiotic factors. Many other characteristics present in this small ecosystem as given in the question.
A microhabitat is a small or localized ecosystem in a more extensive ecosystem a range of small populations of plants, animals sustain main a micro-ecosystem.
What is a Micro-ecosystem?
A rotting or decomposing log is an illustration of a microhabitat as it nourishes food shelter, and different plants and organisms found and interact to create an ecosystem. There are also interchanges between biotic and also abiotic factors. Multiple different characteristics are present in this small ecosystem as given in the question.
Find more information about Micro-ecosystem here:
https://brainly.com/question/26925920
Which are the basic physical sciences?
biology, paleontology, biochemistry and zoology
medicine, biotechnology, genetics and pharmacology
chemistry, physics, astronomy and earth science
Correct.
mathematics, statistics, logic and computer science
Answer:
Chemistry, physics, astronomy and earth science.
Explanation:
Which question can be answered by science?
Group of answer choices
Why should we help those less fortunate than us?
Which type of candy tastes the best?
Which kind of backpack do students purchase most often?
Why are children happy when they get home from school?
Answer:
C.
Explanation:
determine the energy in joules of a photon whose frequency is 3.55 x10^17 hz( with units)
i think it is this
Explanation:
In a 2.00 g sample, which has the greatest number of atoms?
AI
S
All are equal
Na
Р
Answer
so AI has 13 atoms
S has 16 atoms
Na has 11 atoms
P has has 15 atoms
so the one with the most is S
S is sulfur
sulfur has many uses when it is processed along with some some biological uses.
Explanation:
calculate the number of molecules in 52 gram of helium
Answer:
The molar mass that is the mass of 6.022 X 1023 atoms of helium is 4g. Hence 1 mole of He = 4 g of He = 6.022 X 1023atoms of He.
1 g of He = (6.022 X 1023) / 4 atoms of He.
52 g of He = (6.022 X 1023X 52 ) / 4 atoms of He.
Explanation:
how many minutes are in 9,040 ms
Answer:
0.15066667
I tried, hope this helps :)
Pleaseeeee answer quick
The most reactive metals are located in wwhich area of the periodic table?
A.top
B.far left
C.far right
D.center
Answer:
B
Explanation: Lithium, sodium, and potassium, etc. all react with water
The volume of CO2 at 99.3 kPa was measured at 455 cm3. What will the volume be if the pressure is adjusted to 202.6 kPa?
Answer:
The answer is 223.0 cm³Explanation:
To find the volume when the pressure is at 202.6 kPa we use Boyle's law which is
[tex]P_1V_1 = P_2V_2[/tex]
where
P1 is the initial pressure
P2 is the final pressure
V1 is the initial volume
V2 is the final volume
Since we are finding the final volume
[tex]V_2 = \frac{P_1V_1}{P_2} \\[/tex]
From the question
P1 = 99.3 kPa = 99300 Pa
V1 = 455 cm³
P2 = 202.6 kPa = 202600
So we have
[tex]V_2 = \frac{99300 \times 455}{202600} = \frac{45181500}{202600} \\ = 223.008390...[/tex]
We have the final answer as
223.0 cm³Hope this helps you
Increasing the temperature of gas in a container that cannot expand is a way to _______. decrease the volume of the gas decrease the volume of the gas increase the pressure of the gas increase the pressure of the gas decrease the pressure of the gas decrease the pressure of the gas increase the volume of the gas
Answer:
Increase the pressure of the gas
Explanation:
According to the Pressure law, for a fixed mass of gas, at a constant volume (V), the pressure (P) is directly proportional to the absolute temperature (T).
From the kinetic molecular theory, gases are composed of particles which are in constant motion, colliding with themselves as well as with the walls of their container.
When the temperature of these gas molecules is increased, the molecules acquire more kinetic energy and the rate of collisions increases. Since the container cannot expand, the increase in pressure is due to the increase in collisions between the molecules of the gas as well as with the walls of their container.
Answer:
False
Explanation:
Its F
Briefly explain why sulfur and phosphorus can form complicated molecules, but nonmetals in period 2 tend to form only diatomic molecules
Answer:
see below
Explanation:
Sulfur and phosphorous can violate the octet rule and have an expanded octet, so molecules of these elements can contain more than eight valence electrons. In contrast, nonmetal elements in period 2 can't have an expanded octet because they don't have d orbitals. These elements must obey the octet rule and can hold only up to eight valence electrons. Period 2 elements can fill their outer orbitals by covalently bonding with one other atom of the same element.
Is this a compound,mixture or solution? (10 points)
Answer:
it is a compound it is a solution when they say they are ablle to seperate it give out they did not mix it
Explanation:
which combination of atoms will form a molecule but not a compound?
A).OXYGEN AND HYDROGEN
B).HYDROGEN AND CARBEN
C).OXYGEN AND OXYGEN
D).CARBEN AND OXYGEN
HELP ME PLZ IM SO CONFUSED IVE GOOGLED AND EVREYTHING HELP!!1
Answer:
A OXYGEN AND HYDROGEN
Explanation:
Which of the following substances cannot be separated?
O homogeneous mixture
heterogeneous mixture
element
O compound
Answer: Elements.
Explanation: Homogeneous and heterogeneous is just if a mixture is uniform or not. Mixtures and always be separated. Compounds are elements that combined which can be broken down again. So I say the logical answer is an element since it's pure and cannot be broken down into other elements or more of it's self.
What does nm measure in the spectra?
Answer:
The nanometre (international spelling as used by the International Bureau of Weights and Measures; SI symbol: nm) or nanometer (American spelling) is a unit of length in the metric system, equal to one billionth (short scale) of a metre (0.000000001 m).
Answer: Nanometer
Explanation:
The nanometre (international spelling as used by the International Bureau of Weights and Measures; SI symbol: nm) or nanometer (American spelling) is a unit of length in the metric system, equal to one billionth (short scale) of a metre (0.000000001 m).
...
Nanometer
imperial/US units 3.2808×10−9 ft 3.9370×10−8 in
Which of the following is true about science and technology? A. Advancements in science cannot lead to advancements in technology, but technological advancements can lead to scientific advancements. B. Advancements in science can lead to advancements in technology, and technological advancements can also lead to scientific advancements. C. Advancements in science cannot lead to advancements in technology, and technological advancements cannot lead to scientific advancements. D. Advancements in science can lead to advancements in technology, but technological advancements cannot lead to scientific advancements.
Answer:
c is the answer i am positive about that is it is wrong correct me plz
Explanation:
A swimming pool, 10.0 m by 4.0 m, is filled with water to a depth of 3.0 m at a temperature of 20.2°C.
How much energy is required to raise the temperature of the water to 28.6°C?
Energy required : 4.23 x 10⁹ J
Further explanationHeat can be calculated using the formula:
Q = mc∆T
Q = heat, J
m = mass, g
c = specific heat, joules / g ° C
∆T = temperature difference, ° C / K
Volume of water:[tex]\tt V=L\times W\times H\\\\V=10\times 4\times 3=120~m^3[/tex]
mass of water :ρ = 1000 kg/m³
[tex]\tt mass=\rho\times V\\\\mass=1000~kg/m^3\times 120~m^3=120,000~kg[/tex]
Heat requiredc water = 4200 J/ kg ° C
[tex]\tt Q=m.c.\Delta T\\\\Q=1.2\times 10^5\times 4200\times (28.6-20.2)\\\\Q=42336\times 10^5=4.23\times 10^9~J[/tex]
How many joules are contained in a snack cake that is labeled "230 Calories"?
(Hint: 1 Calorie - 1,000 calories, 1 cal - 4.184 J)
O A 9.62 X 102 J
B
9.62 X 1053
C. 54.9 J
5.49 X 10 to the power of 4
Answer:
9.62 × 10² J
Explanation:
In this problem, we need to convert 230 calories to joules. For this, we must know the conversion from calories to joules.
1 Calorie = 4.184 Joules
To find Joules in 230 calories, multiply 4.184 by 23. So,
230 Calorie = (230 × 4.184) Joules
= 962.32 Joules
or
230 Calories = 9.62 × 10² J
So, the correct option is (A).
Velocity and speed are both measurements of how fast something is moving however velocity is different from speed because
A) velocity and speed are the same thing
B) velocity is usually faster than speed
C) The velocity of an object also tells us the direction something is moving
D) velocity is how fast something is changing its speed
Answer:
C
Explanation:
Velocity is a vector quantity I.e it has magnitude and direction
Speed on the other hand is a scalar quantity I.e it has only magnitude
In paper chromatography, is the substance being tested the solute or the solvent?
Answer:
Explanation:
This is an awfully good question. Think carefully about which is which.
A solvent is something that will dissolve the solute.
So the solvent will carry the solute up (say) chromatography paper. It is the solute.
Which cell structure is found in animals, but not in plants?
Animal cells each have a centrosome and lysosomes, whereas plant cells do not. Plant cells have a cell wall, chloroplasts and other specialized plastids, and a large central vacuole, whereas animal cells do not.
Answer:
1
Explanation:
An organism contains 28 chromosomes and undergoes asexual reproduction. How many chromosomes will each of the resulting offspring contain?
It is 1,518 miles from West Lafayette to Provo, UT (where Mrs. Fernandez started in college). If I drive in that direction 692 miles the first day and 674 miles the second day, how many more miles will I have to drive the third day until I reach my destination? Explain. *
Answer:
152 more miles you will have to drive the third day to reach the destination.
Explanation:
First you must know the distance during the first two days. If you drive 692 miles on the first day and 674 miles on the second day, to get the distance traveled on both days you must add both amounts traveled:
692 miles + 674 miles= 1,366 miles
Knowing that there are 1,518 miles from West Lafayette to Provo, UT, to know the number of miles you will have to drive on the third day to reach your destination, you must subtract between the total distance and the distance traveled in the first two days. This is:
1,518 miles - 1,366 miles= 152 miles
152 more miles you will have to drive the third day to reach the destination.
List the following elements in order of increasing atomic radius:
1. sulfur II. hydrogen III. strontium IV. iodine
V. oxygen
Answer:
sulfur
hydrogen
iodine
oxygen
strontium
Explanation:
An atom gets larger as the number of electronic shells increase; therefore the radius of atoms increases as you go down a certain group in the periodic table of elements.
In general, the size of an atom will decrease as you move from left to the right of a certain period.
Order of increasing atomic radius:
O < H < S < I < Sr
Describe the trend of atomic radius.The atomic radius measures the separation between an atom's nucleus and its farthest electrons.
The trend across a periodAtoms' atomic radii typically decrease from left to right.As electrons are added to the same primary energy level, protons are gradually added to the nucleus. Because of the increased positive charge on the nucleus, these electrons are gradually drawn closer to it. Atomic sizes shrink as the strength of attraction between nuclei and electrons grows.The trend down the groupWithin a group, atoms' atomic radii typically increase from top to bottom. Again, the positive nuclear charge rises as the atomic number decreases inside a group. The number of major energy levels that are occupied is increasing as well, though. The orbitals from higher primary energy levels have greater sizes than the orbitals from lower principal energy levels. Atomic radius increases down a group as a result of the stronger impact of the major energy levels outweighing the increase in nuclear charge.Learn more about atomic radius here:
https://brainly.com/question/20889495
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Explain how metallic bonding supports the properties of metals
Answer:
Explanation: Because electrons are delocalized around positively charged nuclei, metallic bonding explains many properties of metals. ... Further, because the electrons are free to move away from each other, working a metal doesn't force together like-charged ions, which could fracture a crystal through the strong repulsion.
How much will it cost in American dollars(USD) to fill a 15 gallon tank of gasoline in Canada, if the price of gasoline there is $1.07 Canadian dollars (CAD) per liter. The current exchange rate is ($1.00(USD)= $1.34(CAD), 1 L=1.06 qts, 1.61 Km= 1 Mile, 1 gal= 4 qts]
Answer:
It will cost 45.37 US dollars (USD) to fill a 15 gallon gas tank in Canada.
Explanation:
Two values are directly proportional when when one value increases, the other increases in the same proportion, or when one value decreases, the other decreases in the same proportion.
The rule of three makes it possible to solve proportionality problems effectively and quickly. It is a method of calculating an unknown value that is directly proportional to another known value.
Then, knowing the data a, b and c, and the fourth unknown data x, which will be the unknown to be solved, this value is calculated as:
a ⇒ b
c ⇒ x
So: [tex]x=\frac{c*b}{a}[/tex]
You must calculate the cost in US dollars (USD) to fill a 15 gallon gas tank in Canada. You know that the price of gasoline is $1.07 Canadian dollars (CAD) per liter. If 1 L equals 1.06 qts, then you can say that the price of gasoline is $ 1.07 Canadian dollars (CAD) per 1.06 qts.
You can now apply a rule of three as follows: if 4 qts is equal to 1 gal, 1.06 qts is equal to how much gal is?
[tex]gal=\frac{1.06 qts*1 gal}{4 qts}[/tex]
gal= 0.265
Then you can say that the price of gasoline is $ 1.07 Canadian dollars (CAD) per 0.265 gal. So you can apply the following rule of three: if 0.265 gal costs $ 1.07 Canadian dollars (CAD), 15 gal how many Canadian dollars cost?
[tex]CAD=\frac{15 gal*1.07 CAD}{0.265 gal}[/tex]
CAD= $60.8 CAD
Finally, you can apply the following rule of three: if $ 1.34 (CAD) is equal to $ 1.00 (USD), $ 60.8 (CAD) is equal to how many US dollars (USD)?
[tex]USD=\frac{60.8 CAD*1USD}{1.34 CAD}[/tex]
USD= 45.37
It will cost 45.37 US dollars (USD) to fill a 15 gallon gas tank in Canada.
Answer the following question.
