Answer:
mark as brainliest pls
Explanation:
Hematite can be described as a rock which contains a lot of iron. Hematite is an ore of iron from which substantial amount of iron can be won at profit depending on prevailing economic conditions in a place
Light has both magnetic and electric fields. Scientists call this *
Answer:
I think is electromagnetic radiation (light)
Explanation:
If i get it wrong i am sorry
What is the molar mass of AuCl₃?
Answer:
molar mass of Aucl3
is 303.33 g/ mol
If there is no subscript on an element symbol there is/are __________________ atom(s) of that element.
Answer:
If there is no subscript written after a symbol that means there is one atom of that element present
Explanation:
correct me if I'm
If there is no subscript on an element's chemical symbol there is one atom of that element.
What is an element ?
It is defined as a substance which cannot be broken down further into any other substance. Each element is made up of its own type of atom. Due to this reason all elements are different from one another.
Elements can be classified as metals and non-metals. Metals are shiny and conduct electricity and are all solids at room temperature except mercury. Non-metals do not conduct electricity and are mostly gases at room temperature except carbon and sulfur.
The number of protons in the nucleus is the defining property of an element and is related to the atomic number.All atoms with same atomic number are atoms of same element.Elements combine to form compounds.
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Please help! How many grams is 4.5 x 10^27
Answer: The answer is 4.5e+27 grams, I hope I helped!
Explanation: N/A (I threw away my paper ^^")
Help!!!!
What is the atom with 10 kernel electrons and 5 valence electrons?
and
What has a + 1 charge and has 8 valence electrons in the third major energy level?
Answer:
!atoms in the nitrogen family.. have 5 valence electrons. They tend to share electrons when they bond. Other elements in this family are phosphorus, arsenic, antimony, and bismuth.
PLEASE ASAP
This chemical equation represents a chemical equation.
2HNO3 + Na2SO3 → 2NaNO3 + H2O + SO2
Which chemical is a reactant in the reaction?
a. H2O
b. Na2SO3
c. SO2
d. NaNO3
Answer:
B. Na2SO3 is one of the reactants
Explanation:
Answer: B. Na2SO3
Explanation:
A reactant is always left to the arrow and is a substance that is at the start of a chemical reaction (before the reaction / change occurs)
What do all magnets have in common? Select all that apply
magnetic domains are aligned
magnetic domains are not aligned
movement of protons creates a magnetic field
all magnets have opposite poles (a North pole and South pole)
movement of electrons creates a magnetic field
moving electrons generate magnetic fields
Answer:
1
4
5
6
Explanation:
all magnets have opposite poles (north and south)
magnetic domains are aligned
moving electrons generate a magnetic filed
movement of electrons creates a magnets field
attracted to iron, nickel and cobalt
5. What percentage of energy generation is
produced by fossil fuels? sc.7.P.11.2
A 19.5%
B 33.2%
© 66.9%
D 86.4%
Answer:
i think it's B maybe..I'm not sure
J
Question 3
A student is a passenger in the front seat of a moving car. Which object is the best
frame of reference for the student to determine how fast the car is moving relative to
the ground?
O a person sitting in the backseat of the car
O a truck traveling in the lane next to the car
o the driver sitting next to the student
O a signpost on the side of the road
Answer:
a truck traveling in the lane next to the car
Explanation:
because if you look down for any car (but talking about a truck) that looks like its going fast and look at the road of the ground and then you will acctuly see how fast its moving. Hope that help you!
When sediment is eroded and then deposited at the mouth of a river, it can form a
Answer:
fossil?..................
How is an ion formed
How can the speed of solvent molecules be slowed down?
A. by increasing the temperature
B. by increasing the surface area of the solute
C. by increasing the pressure
D. by decreasing the temperature
E. by decreasing the surface area of the solute
A. by increasing the temperature
B. by increasing the surface area of the solute
C. by increasing the pressure
D. by decreasing the temperature
E. by decreasing the surface area of the solute
which form of energy does a cheeseburger have
Answer:
chemical potential energy - It mainly has chemical potential energy, this is really a type of electrical potential energy stored in the chemical bonds of the molecules
Explanation:
You can give the other person brainliest, I don't need it! :)
Please help me with 6 7 8 and don’t send me a link tell me here please
Answer:
6 b physical properties
7b melting point
8 boiling
What 2 subatomic particles are found in the nucleus?
Answer:
Protons and Neutrons
Explanation:
Thats it
What is the volume of SO3 in 835 g SO3?
If you solve both then will absolutely mark brainly but,ASAP
Explanation:
1. B gathers information from the enviroment
2.nuerons
hope this helps
Which compound is insoluble in water?
A) calcium bromide
B) potassium bromide
C) silver bromide
D) sodium bromide
Answer:
C) silver bromide
Explanation:
Calcium bromide is incorrect.
The compound which is insoluble in water is silver bromide (AgBr).
Which compounds are insoluble in water?Those compounds which have high attraction force between their constitutes ions as compare to ions between the water and compounds are insoluble in water.
Among given compounds all are soluble in water except silver bromide, because silver is having high nuclear charge than other given alkali metals as calcium, potassium and sodium. So it tightly attracts the bromide ion towards itself and this attraction is more than the attraction between the H⁺ ion of water and bromide ion, as a result of which it is insoluble in water.
Hence, option (C) is correct i.e. silver bromide.
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A compound is found to have a composition of 35.880% Cr, 21.076% P, and 43,545% O
What is the empirical formula of the compound?
Explanation:
Cr=35.880/51=0.73≈0.7
P=21.076/31=0.67≈0.7
O=43.543/16=2.71
Divide each by 0.7 u get
Cr=1 ,P =1, O=4
Empirical formula is CrPO4
Under each DNA sequence write the complimentary mRNA base sequence that each of these gene fragments would produce. Remember that in the production of mRNA, the DNA base sequence "A" _________________ specifies the RNA base ____________________
Answer:
The correct answer would be -
Thymine to adenine
Cytosine to guanine
guanine to cytosine
Adenine, and "U" uracil respectively.
Explanation:
mRNA is a sequence of complementary base sequences encoded from a gene or DNA segment which is used to produce the protein by the process called translation.
From converting a sequence from DNA to its complementary mRNA sequence, the rules of complementary base pairing will be applied: Cytosine (C) is replaced with Guanine (G) – and vice versa. Uracil (U) is replaced by Adenine (A) and Thymine is replaced by adenine.
Plant cells tend to be round and animal cells tend to be circular. True or False
Answer:
True
Explanation:
Plant cells come in all shapes and sizes. Some are round, some are brick shaped, others look like shoe strings. The one thing they have in common is a rigid cell wall. This means that they cannot change shape very easily. If it's false, let me know it is false and i can change my answer for you
Answer:
True
Explanation:
I need an answer and explanation pls
Answer:
Cl2 + 2NaBr --> 2NaCl + Br2
Explanation:
This is a single displacement reaction where one side of the ionic compound switches with the other.
So, Cl2 + NaBr ---> NaCl + Br2
This isolates the Bromine and puts the Chlorine in it's place.
Then, balance out the equation like so and you should get
Cl2 + 2NaBr --> 2NaCl + Br2
Pls help with this “can get 16 points!”
Explanation:
I believe mitosis is the answer
please mark me brainliest
When there are 165.0grams of reactants, what is the mass of the products for that reaction?
Answer:
165.0 grams
Explanation:
The law of conservation of mass tells us that the mass of the reactants will be equal to the mass of the products. Therefore, if we begin with 165.0 grams of mass, that is how much there will be at the end in the products, even if it's in different forms.
Why are we pulled to the center of the Earth and not into the much larger sun?
Answer:
The sun's gravity pulls on the earth, and the earth pulls back on the sun at the same time. This is why the center of the solar system is not the center of the sun. As one gravitational body gets bigger than the other, it circles closer to the center of the system (shown in red).
Explanation:
hope this helps...
The earth is known to be falling towards the sun as a result of intense gravity. The earth is known to have plenty of sideways momentum and due to this sideways momentum, the earth is often falling towards the sun and missing it.
The reason we are pulled to the center of the Earth and not into the much larger sun by gravity is that all objects with mass, like our Earth, do bend and curve the fabric of the universe referred to as spacetime.
At most, the gravity from the sun result in our planet moving in a curved, elliptical path. but, the planets are moving fast enough so that they are not pulled into the sun.
The sun has a more weaker gravity and as it loses mass, it causes the Earth to slowly move away from it.
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Sweat and releasing thermal energy from blood vessels are ways the skin helps control body temperature. Group of answer choices False True
memeemme eemmememmememmemmeemmeemememmemmemememmee Explanation:
which place is a likely location for primary succession
Answer:
Places where primary succession occurs
include newly exposed rock areas, sand dunes, and
lava flows.
An inflated balloon is left outside overnight. initially it has a volume of 1.84 L when the temperature is 293.4 K and the pressure. what temperature will the balloon have a volume of 1540mL. If the pressure falls to 14.41 psi?
Answer:
ffff
Explanation:
Hi please may someone help me
Choose the answer that best explains why Orion is important to star watchers.
Orion is located on the celestial equator. Its location causes the rest of the stars to appear to revolve around Orion as the Earth rotates.
Since Orion can be seen in both the Southern and Northern Hemispheres it is useful for finding north in the night sky.
Orion, the hunter, was an important figure in Greek Mythology making the constellation of central importance to astronomers.
Orion is easy to locate, it can be seen in both hemispheres and is helpful for locating prominent stars, nebulas and surrounding constellations.
Answer:
Orion is located on the celestial equator. Its location causes the rest of the stars to appear to revolve around Orion as the Earth rotates.
Explanation:
The above stated statement is the reason why those who watches for stars commonly called the star watchers use the Orion as their base point in star observation. Without this, it would be difficult to trace the stars or know the exact ones which appears on the sky.