Volume = Mass / Density
Thus
Volume = kg/m³
or
[tex]Volume = kgm^{-3}[/tex]
Describe the celestial object in the image. The object is called a because it is producing and has not yet .
The image, blanks and options are missing in the question. So the image is attached below and the complete question is:
Describe the celestial object in the image.
The object is called________ a because it is producing _______ and has not yet ________ .
First Blank: A.Meteor B.Meteorite C.Meteoroid
Second Blank: A. a streak of light B. An orange Horizon C. A star- Filled sky
Third Blank: A. Reached earths atmosphere B. Struck Earth C. Completed an orbit
Answer:
First Blank - A. Meteor
Second Blank - A. a streak of light
Third Blank - A. Reached earths atmosphere
Explanation:
The given image shows celestial object called meteor.
The meteor is often called shooting star as it produces a streak of light. When a meteoroid reaches Earth's atmosphere, it experiences a friction which allows the meteoroid to burn up and produce a streak of light in the sky.
Hence, the correct answer for blanks is Meteor, a streak of light and Reached earths atmosphere.
What is the molarity of 0.945 L of a solution that contains 0.227 moles of Fe(NO3)3?
Answer:
0.2402 M
Explanation:
0.945 L sol contains = 0.227 moles
1 L sol will contain = (0.227/0.945)*1 = 0.2402 moles
Molarity = 0.2402 moles/L or M
why it is dangerous for people to continue to travel into space?
Answer:
The environment of space is lethal without appropriate protection: the greatest threat in the vacuum of space derives from the lack of oxygen and pressure, although temperature and radiation also pose risks. The effects of space exposure can result in ebullism, hypoxia, hypocapnia, and decompression sickness.
Explanation:
hope that helps love!
Explanation:
This is very dangerous because if something goes wrong while you are in space theres a 50 percenr chance you will die. As of 2020, 19 lives have been lost while in space travel.
what is one thing that would make evidence from an experiment more reliable? A if there was no comparison group B if there was a small sample C if the source of the information was an expert D it is not D i tried D already
Answer:
Explanation:
When a scientist repeats an experiment with a different group of people or a different batch of the same chemicals and gets very similar results then those results are said to be reliable. Reliability is measured by a percentage – if you get exactly the same results every time then they are 100% reliable.
15.) Solar energy, wind, and geothermal are what type of energy resource?
a.) Inexhaustible
b.) Inexpensive
c.) Nonrenewable
d.) Chemical
Answer:
a,) inexhaustible energy resources
PLZ HURRY
7. What is the measurement 1042 L rounded off to two significant digits?
A 1.0 × 103 L
B 1050 L
C 1040 L
D 1.1 x 103 L
The value 1042 L rounded to 2 significant digits is 1000 = 1.0 × 10³ L
To round to 2 significant digits :
Write out the first two digits from the left : 10The next digit after the second is rounded to 1 and added to the 2nd digit if it is greater than or equal to 5 else it is rounded to 0 Since, the third digit is 4 ; we round to to 0 ; including the other succeeding digits ; Hence, we have 10001000 could be written in scientific notation as :
1000 = 10 × 10 × 10 = 1 × 10³Therefore, 1042 = 1 × 10³ (2 significant digits)
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Can you live without body tissue? This is a yes or no question, no explaining required, but you can add it if you want. :D
it depends but no you cant
how do you determine how many electron energy levels an element has
Answer:36
Explanation:
Atoms must have equal numbers of protons and electrons. In our example, an atom of krypton must contain 36 electrons since it contains 36 protons. Electrons are arranged around atoms in a special way.
Answer:
Explanation:
The maximum number of electrons that can occupy a specific energy level can be found using the following formula: Electron Capacity = 2 n 2 The variable n represents the Principal Quantum Number, the number of the energy level in question.
Which of the following are likely to form an ionic bond?
A. Carbon and hydrogen
B. Carbon and sulfur
C. Magnesium and sulfur
D. Nitrogen and oxygen
Answer:
B. Carbon and sulfur
Explanation:
Which changes occur when Pt2+ is reduced? A) The Pt2+ gains electrons and its oxidation number increases. B) The Pt2+ gains electrons and its oxidation number decreases. C) The Pt2+ loses electrons and its oxidation number increases. D) The Pt2+ loses electrons and its oxidation number decreases.
Answer:
C
Explanation:
The formula for sulfuric acid is H2SO4. A mole of sulfuric acid would have a mass of ___ grams.
Answer:
98.0795 g
Explanation:
The molar mass of sulfuric acid is 98.0795 g/mol . This means that every mole of sulfuric acid has a mass of 98.0795 g.
In hamsters, being Brown (B) is dominant to being tan (b). Two Brown hamsters produce 3 brown offspring and 1 tan offspring. What MUST be the GENOTYPES of the parents?
Answer:
Bb and Bb
Explanation:
This will give you the desired results of one homogeneous BB (brown), two heterogeneous Bb (brown), and one homogeneous bb (tan).
Big question for physicists out there:How can we be sure dark matter actually exists in our universe?
Answer:
We can see the bright matter, like stars, but we know some other matter is there(dark matter)because of how it pulls on the bright matter.
Explanation:
How does Q compare to Keg?
O Q> Keq
O Q< Kea
OQ = Keg
Answer:
Q<Keq
Explanation:
just found out they ask this question twice,
the one on top is right but for the second time this question is asked.
my answer is right for the first time it is asked.
thank you for your time.
In chemical equilibrium, the equilibrium constant is greater than reaction quotient that is Q< Keq.
What is chemical equilibrium?Chemical equilibrium is defined as the condition which arises during the course of a reversible chemical reaction with no net change in amount of reactants and products.A reversible chemical reaction is the one wherein the products as soon as they are formed react together to produce back the reactants.
At equilibrium, the two opposing reactions which take place take place at equal rates and there is no net change in amount of the substances which are involved in the chemical reaction.At equilibrium, the reaction is considered to be complete . Conditions which are required for equilibrium are given by quantitative formulation.
Factors which affect chemical equilibrium are change in concentration , change in pressure and temperature and presence of catalyst.
Learn more about chemical equilibrium,here:
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What is the answer to this question
Answer:
C
Explanation:
C is the correct answer to this question.
One parent is homozygous and has brown fur...
Hope this helps.
Desert plants have to adapt to a harsh environment. Many desert plants such as the rabbitbrush have small leaves, why? A) large leaves weigh too much B) small leaves reflect the sunlight C) small leaves taste bad to the animals D) small leaves conserve water by reducing transpiration
Answer:
D
Explanation:
they conserve water using less transpiration
Answer:
Hello! Your answer would be, D)Small leaves conserve water by reducing transpiration
Explanation:
Hope I helped! Brainiest plz!♥ Have a nice morning! Hope you make a 100%! -Amelia
Which of these hypotheses would lead to the best scientific investigation?
A) Lettuce is crunchy.
B) Potato chips taste the best.
C) The average score on the biology test was 78%.
D) People prefer green candy over red candy.
Answer:
D people prefer green candy over red candy
Explanation:correct
Answer: d
Explanation:
What is shown in the diagram?
a generator
an electromagnet
a motor
a turbing
Answer:
I know this and it's a motor
Identify what type of reaction is below. Also determine what coefficients that would balance the chemical equation. ___ HCl + ___Zn → ___ H2 + ___ZnCl2 A) Double Replacement; 2, 1, 1, 1 B) Single Replacement; 2, 1, 1, 1 C) Synthesis; 1, 2, 1, 2 D) Double Replacement; 1, 2, 1, 1
Answer:
Single Replacement; 2, 1, 1, 1
Explanation:
2HCl + Zn → H2 + ZnCl2
In a single replacement reaction, one specie is replaced by another specie in a chemical reaction.
If we look at the reaction above, zinc metal reacted with hydrochloric acid. The reaction proceeds in such a manner that zinc replaces hydrogen in hydrochloric acid. This is a single replacement reaction because only one chemical specie is displaced in the reaction.
distinguish between the climates of a coastal location and a location in the center of a large continent.
Answer:
Climatic condition in coastal regions is milder than the climatic conditions in the continental regions.
Explanation:
Climate in coastal regions is mild. It has both hot summers and winters accompanied by sea breezes. Precipitation and humidity is high in coastal areas. Both the summers and winters have a mild temperature range.
While in continental regions both summer and winters undergo extreme conditions. Summers are extremely hot and winters are extremely cold. They have wide range of climatic exposures such as rainy season, autumn season and spring season in between summer and winter season.
Imagine you see a famous person.
Which best explains the process of how your nervous system “senses” the person, then instructs you to ask for an autograph?
A eyes-spinal cord-mouth
B brain-eyes-mouth
C eyes-spinal cord-brain-spinal cord-mouth
D eyes-brain-mouth
why is a triangle stronger than a square?
Answer: Triangles are the strongest shape because they have fixed angles and don't distort very easily. Much of that works because the results from the characteristics of triangles, which are the strongest of all shapes.
Explanation: Hope this helps and I can get brainliest :)
What drives this process?
Answer:
D.
Explanation:
The sun makes the land warm, while the water stays colder. This make the warm air rise off the ground and causes the cool are to replace it (making it come from the ocean)
Using m1v1=m2v2,a 0.5 liters of 12 Molarity solution of NaCl was added to a 2.0 liters of water,find out the final molarity of this 2.5 liter solution
Answer:
2.4 M
Explanation:
The dilution formula, M1V1 = M2V2, states that the initial molarity times the initial volume equals the final molarity times the final volume. Plug in the values and solve for M2:
12 M * 0.5 L = M2 * 2.5 L
6 = M2 * 2.5 L
M2 * 2.5 L = 6
M2 = 6 / 2.5 = 2.4 M
Someone help
Please
Answer:
what is the topic
Explanation:
Complete the following sentence: "During a chemical reaction."
Select one:
O
the number of atoms in the product(s) is less than those of the reactant(s).
O
the mass of the atoms of the product(s) is greater than those of the reactants).
O
a small amount of matter is destroyed during the process
a new substance(s) with the same number of atoms as the initial substance(s) is
tormed
Answer: a new substance(s) with the same number of atoms as the initial substance(s) is formed
Explanation:
Chemical reaction is a reaction in which there is rearrangement of atoms and thus new substance is formed.
According to the law of conservation of mass, mass can neither be created nor be destroyed in chemical reaction. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.
In peas, having wrinkled pods (W) is dominant to having smooth pods (w). A heterozygous pea plant is crossed with a pea plant that has smooth pods. Create a punnett square (you do not have to include the actual square in your answer). What are the genotypes and phenotypes of the offspring (include numbers).
Answer:
Genotype: Ww, Ww, ww, ww
Phenotype: heterzygous wrinkled pods, heterzygous wrinkled pods, homozygous smooth pods, homozygous smooth pods
Explanation:
You have to cross Ww with ww and you will get the genotypes and phenotypes above.
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Identify the oxidation number of a Cr atom
in each of the following: CrO3, Cro, Cr(s),
CrO2, Cr2O3, Cr2O3 , and Cro2-7, and Cro2-4
Answer:
jggjjvficfivfivgihggii
What mass of NaOH must be added to the solution to increase the concentration to 30.00% by mass?
Answer:1) 0.0625 g.
2) 0.0125 g.
3) 80.0 g If this right please try to help me!
Answer:0.0125
Explanation:on edge
How many moles of H+ ions are needed to neutralized 3 Liters of 8M
NaOH?*
Answer:
Answer:
0.027 mole of NaOH.
Explanation:
We'll begin by obtaining the number of mole H2SeO4 in 45mL of 0.30M H2SeO4
This is illustrated below:
Molarity of H2SeO4 = 0.3M
Volume of solution = 45mL = 45/1000 = 0.045L
Mole of H2SeO4 =...?
Mole = Molarity x Volume
Mole of H2SeO4 = 0.3 x 0.045
Mole of H2SeO4 = 0.0135 mole
Next, the balanced equation for the reaction. This is given below:
H2SeO4 + 2NaOH –> Na2SeO4 + 2H2O
From the balanced equation above,
1 mole of H2SeO4 required 2 moles of NaOH.
Therefore, 0.0135 mole of H2SeO4 will require = 0.0135 x 2 = 0.027 mole of NaOH.
Therefore, 0.027 mole of NaOH is needed for the reaction.
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Explanation:
Answer: 0.027 mole of NaOH.
Explanation:
We'll begin by obtaining the number of mole H2SeO4 in 45mL of 0.30M H2SeO4
This is illustrated below:
Molarity of H2SeO4 = 0.3M
Volume of solution = 45mL = 45/1000 = 0.045L
Mole of H2SeO4 =...?
Mole = Molarity x Volume
Mole of H2SeO4 = 0.3 x 0.045
Mole of H2SeO4 = 0.0135 mole
Next, the balanced equation for the reaction. This is given below:
H2SeO4 + 2NaOH –> Na2SeO4 + 2H2O
From the balanced equation above,
1 mole of H2SeO4 required 2 moles of NaOH.
Therefore, 0.0135 mole of H2SeO4 will require = 0.0135 x 2 = 0.027 mole of NaOH.
Therefore, 0.027 mole of NaOH is needed for the reaction.
Explanation: