they have a negligible mass and they also have a negative charge so they have an association with the magnetic field. Do you remember polar? So electrons are negative and they attract the nucleus which is overall postivie (since protons are positive) so they act as magnetic since they both have an attraction
A
is an organism that eats other organisms to gain energy; it is also called
Answer:
A consumer
Explanation:
Organisms, such as plants, that produce their own food by methods such as photosynthesis are called producers.
Organisms that need to consume other organisms as their food source, including all animals, are consumers. Some consumers consume plants (primary consumers, or herbivores) but other consumers eat other consumers (secondary consumers, or carnivores)
Ag3PO4 what is the compound with this formula
Answer:
silver (III) phosphate
Explanation:
1. Describe in your own words what friction is.
2. Describe how friction affected the results of your investigation.
3. Does an object travel farther on a smooth or slippery surface or on a rough surface? Why?
4. Propose another experiment that could be used to demonstrate that friction is a contact force.
10 points, please hurry.
Answer
There is much more friction on the rough surface that there is on the smooth surface.
15. List the substances A-E in order from most dense to least dense based on the facts provided.
Please write the letters in the spaces provided below.
Substance A: 8.2 g/cm3
Substance B: 3.5 cm and 30.0g
Substance C: 10.0g and 40mL
Substance D: 0.5 g/cm3
Substance E: 2.0cm by 3.0cm by 1.0cm and 4.0g
Most Dense_ _ _ _ _
Least Dense
Answer:
So 1st it is B then D then E then a then C
The order of density of substances ranging from most dense to least dense is :substance B>substance A>substance E>substance C>substance D.
What is density?It is a ratio of substance's mass per unit of volume.Symbol most commonly used for density is р.The SI unit of density is kilogram per cubic meter .It explains how tightly a material is packed together.
There are 2 types of density :1)absolute density 2) relative density.Absolute density is the mass of any substance per unit volume and relative density is the ratio of density of a substance to the density of a given reference material.
Reference material used for relative density is water.The instrument used for measuring density or relative density of liquids is hydrometer. Density is measured at constant temperature and pressure.
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) The valency of sodium atom is 1, what does it mean?
Answer:
The valence of sodium atom is 1. It means that the atom of sodium has 1 electron in its outermost shell.
Explanation:
Mark me as brainliest. Nepali le Nepali lai sahayog nagare kaslai garxha
Organic whole wheat flour sells in bags weighing 2.915 kilograms.
How much flour is this when rounded to the nearest tenth? Use a place value chart and number line to explain your thinking.
Answer:
2.920
Explanation:
This question tests your knowledge of approximation. If we look at the place values after the decimal point, we have, .915. This corresponds to hundredth, tenth and unit.
Since we have 9.15, in rounding it to the nearest tenth, we have to round it up to .920.
Hence, the weight of the flour to the nearest tenth is 2.920.
Which of the following is a characteristic differentiating tropical and temperate rainforests?
a. the location
b. the types of trees
c. the average temperature
d. all of the answers are correct
Answer:
D. all of the answers are correct
Explanation:
edge 2020
Rainforests are defined by the evergreen and canopy trees. The tropical and temperate rainforests differ in the locations, type of plantation, and temperature. Thus, option d is correct.
What is a tropical and temperate rainforests?Tropical and temperate rainforests are rainforests that differ from each other based on various factors. The tropical rainforest is located at the latitude near the equator, between the Tropic of Cancer and Capricorn. They are covered with canopied trees and average warm temperature conditions.
On the other hand, the temperate rainforests are found away from the Equator near the north side of the tropics and are marked by the presence of coniferous or broadleaf trees. They have a cooler climate and two seasons.
Therefore, option d. the tropical and temperate rainforests have different temperatures, locations, and trees.
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How are ionic compounds named? (APEX!)
A. A number is given in parentheses after each elements name to indicate the number of atoms
B. The name of the first element is followed by that of the second element, the latter of which ends in -ide
C. The name of each element is followed by a To indicate the number of atoms
D. A prefix is used which each elements name, and the second element is change the end in -ine
The ionic compounds are named as The name of the first element is followed by that of the second element, the latter of which ends in -ide. Hence Option (B) is the correct.
What are Ionic Compound ?
In chemistry, an ionic compound is a chemical compound composed of ions held together by electrostatic forces termed ionic bonding.
The compound is neutral overall, but consists of positively charged ions called cations and negatively charged ions called anions.
For binary ionic compounds (ionic compounds that contain only two types of elements), the compounds are named by writing the name of the cation first followed by the name of the anion.
For example, KCl, an ionic compound that contains K+ and Cl- ions, is named potassium chloride.
Therefore, The ionic compounds are named as The name of the first element is followed by that of the second element, the latter of which ends in -ide. Hence Option (B) is the correct.
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Which of the following elements would be most
likely to be both conductive AND magnetic in nature?
A. F
B. Ni
C. Na
D. Xe
Answer:
Ni ➡️Nickel
Explanation:
The element that is most
likely to be both conductive AND magnetic in nature is "Nickel".
Nickel is a popular magnetic metal and it is known to be ferromagnetic. It's valuable in alloys and used in the production of stainless steel. The element belongs to the transition metals - hard, malleable and ductile. It has high electrical and thermal conductivity.
The element finds usefulness in batteries, phones, kitchen tools, jewellery, etc.
We have unlimited wants but our resources such as time and money are limited. This concept is known as A. Scarcity B, Consumption C. Trade D. Currency
Answer:
Since human wants are unlimited, and resources used to satisfy those wants are limited - there is scarcity. Even in the US, one of the richest countries in the world, there is scarcity -- if we use our new definition of SCARCITY.
hope it helps
Complete the Lewis Dot structure for the molecule H-C≡N and determine how many bonding and non-bonding electrons nitrogen has:
Answer:
I believe that in H-C≡N, Nitrogen has 4 bonding electrons and 2 non-bonding electrons.
(:
Explanation:
Ammonium sulfate, an important chemical fertilizer, can be prepared by the reaction of ammonia with sulfuric acid according to the following balanced equation:
2 NH3(g) + H2SO4(aq) → (NH4)2SO4(aq)
If a reaction vessel has 3.29 L of NH3 at 31.5°C and 22.7 atm, how many grams of H2SO4 are needed to completely react with it?
_________________ g H2SO4. Do NOT enter unit. Report your final answer with 3 SFs.
Answer:
Ammonia reacts with sulphuric acid to give the fertilizer ammonium sulphate.
Explanation:
A sample of gas is placed into an enclosed cylinder and fitted with a movable piston. Calculate the work (in joules) done on the gas if it is compressed from 13.43 L to 6.87 L with a pressure of 1.91 atm.
Answer:
Work done = 664.69 J
Explanation:
Given data:
Work done = ?
Initial volume = 13.43 L
Final volume = 6.87 L
Pressure = 1.91 atm
Solution:
work done = W = -PΔV
ΔV = V₂- V₁
work done = w = -P(V₂- V₁)
Now we will put the values in formula.
W = - 1 atm (6.87 L - 13.43 L)
W = - 1 atm (-6.56 L)
W = 6.56 atm.L
atm.L to joule:
6.56 atm.L × 101.325 J / 1L.atm
664.69 J
Ai +O2 =Ai2O3 how many atoms of oxygen exist in this product
Which type of atom will attract electrons
Answer:
nuetrons and protons
Explanation:
Explanation:
the electron pair will be attracted more strongly to the atom that has the higher electronegativity
hope it help
The area surrounding the nucleus is called: protons electrons neutrons electron cloud
Answer:
eletrons
Explanation:
eletrons is not in the neuclus its around it
Answer:
electrons can be found around the nucleus in an electron cloud.
Explanation:
the difference between a molecule and a compound is that a compound is made up of atom from
Answer:
answer explained below.
Explanation:
hey! a molecule is made up of two or more atoms, and a compound is made up of two or more elements. not all molecules are compounds, but all compounds are molecules, because compounds are made up of different atoms.
example: O2 is a molecule but not a compound because it is made up of the same element, but has more than one atom.
WILL GIVE BRANLIEST‼️
Answer:
its c
Explanation:
Answer:
The answer is.......... C!
Explanation:
Which statement BEST describes a proton? *
A larger mass than an electron and a negative charge
A smaller mass than an electron and a negative charge
A larger mass than an electron and a positive charge
A smaller mass than an electron and a positive charge
Answer:
A larger mass than an electron and a positive charge. Protons mass is 1 amu and electrons is 0 amu.
Explanation:
please give brainlyest
Identify the noble gas that has atoms with the
same number of electrons as a chloride ion in
table salt.
Answer:
Ar
Explanation:
Chlorine has an atomic number of 17. That means that it has 17 protons and 17 electrons, thus being electrically neutral. When it gains 1 electron to form the chloride ion, the total number of electrons is 17 + 1 = 18.
Argon is a noble gas with an atomic number of 18, that is, it has 18 protons and 18 electrons.}
Then Cl⁻ has the same number of electrons as Ar.
A crest of a wave with an amplitude of 5 meters intersects the through of another wave with an amplitude of 2 meters. What is the resulting amplitude?:
A. 3 meters
B. 5 meters
C. 7 meters
D. 2 meters
A crest of a wave with an amplitude of 5 meters intersects the through of another wave with an amplitude of 2 metre . the resulting amplitude is
A. 3 meters
The resultant amplitude will be 7 meters.
We have crests of two different waves.
We have to find the resulting amplitude when both the waves intersect.
What is crest of a wave ?A crest point on a wave is the maximum value of upward displacement within a cycle.
According to the question -
Amplitude of wave 1 = 5 meters.
Amplitude of wave 2 = 2 meters.
Assuming that both waves are in phase, when the two waves which are
in-phase interfere, they interfere constructively. The final amplitude will be -
A(f) = A[1] + A[2] = 5 + 2 = 7 meters.
Hence, the resultant amplitude will be 7 meters.
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what istope of an atom if it has 29 protons and 36 neutrons?
Answer:
Copper Atoms
Explanation:
All copper atoms have atomic number 29: all their nuclei contain 29 protons. But they also contain uncharged particles called neutrons. In natural copper, the atoms are of two kinds. One has 29 protons and 34 neutrons in the nucleus; the other has 29 protons and 36 neutrons
Wich of the following does not directly affect the weather
Answer:
Tings that effect weather is basically the following:
Distance from seaAltitudeDistance to the equator or poles.MountainsJet streams,etcipt A wall that was once white is painted black. Which of the following is definitely true of the painted wall? A. Its chemical properties have changed. B. Its physical properties have changed. C. Both its physical properties and chemical properties have changed. D. None of its characteristic properties have changed.
Answer:
B It's physical properties changed
Explanation:
Because they painted the outside
HELPPPPPPPPP
50. How many joules of heat must be absorbed by 0.375 kg of water to raise its temperature by 45.0 to 70.0°C. Specific heat of water is 4.184 J/gC or 1.0 cal/gC
51. What mass of water can be heated from 25.0 to 50.0°C by the adding of 2825 Joules?(Cp of H2O=4.184 J/g °C)
Answer:
50. 54,915 J
51. 27.0 g
Explanation:
The dimensional analysis tells you how to compute these. Multiplying specific heat, J/(g·°C), by the product of mass and temperature change will give you energy.
__
50. (375 g)((70 -45) °C)(4.184 J/(g·°C)) = 54,915 J
__
51. M((50 -25)°C)(4.184 J/(g·°C)) = 2825 J
M = 2825/104.6 g ≈ 27.0 g
Calculate the mass of aluminum that would have the same number of atoms as 6.35 g of cadmium
Answer:
1.62 g of Al contain the same number of atoms as 6.35 g of cadmium have.
Explanation:
Given data:
mass of cadmium = 6.35 g
Number of atoms of aluminum as 6.35 g cadmium contain = ?
Solution:
Number of moles of cadmium = 6.35 g/ 112.4 g/mol
Number of moles of cadmium = 0.06 mol
Number of atoms of cadmium:
1 mole = 6.022×10²³ atoms of cadmium
0.06 mol × 6.022×10²³ atoms of cadmium/ 1mol
0.36×10²³ atoms of cadmium
Number of atoms of Al:
Number of atoms of Al = 0.36×10²³ atoms
1 mole = 6.022×10²³ atoms
0.36×10²³ atoms × 1 mol /6.022×10²³ atoms
0.06 moles
Mass of aluminum:
Number of moles = mass/molar mass
0.06 mol = m/ 27 g/mol
m = 0.06 mol ×27 g/mol
m = 1.62 g
Thus, 1.62 g of Al contain the same number of atoms as 6.35 g of cadmium have.
which physical change is endothermic
Answer:The physical changes that are endothermic are melting, vaporization and sublimation.
Explanation:
Aluminum metal reacts with chlorine gas to form aluminum chloride. The reaction can be represented by the following balanced chemical equation:
2 Al(s) + 3 Cl2(g) → 2 AlCl3(s).
If you were trying to react 52.9 grams of chlorine gas completely, how many grams of aluminum would you need?
_____________________ [grams of Aluminum] Do NOT enter the unit in your answer. Report your answer with 3 SFs.
Given to us is the Reaction of Aluminium metal with Chlorine gas . That is ,
[tex]\boxed{\red{\bf \underset{\blue{Aluminium}}{2Al(s)}+\underset{\blue{Chlorine}}{3Cl_2(g)}\longrightarrow \underset{\blue{Aluminium\: chloride}}{2AlCl_3}}}[/tex]
Now Mass of 1 mole aluminium = 27g . So mass of 2 moles of it would be 27×2 g = 54g .
Also , Mass of 1 mole of chlorine gas = 35.5 g . So mass of 2 Atoms will be 71g . And mass of 3 moles of atom will be 71 × 3g = 213g .
Now , use unitary method ;
213 g of Chlorine reacts with 54g of Aluminium.
1 g of Chlorine will react with [tex]\sf\dfrac{54g}{213g}[/tex] of Aluminium.
Hence 52.9 g of Chlorine will react with [tex]\sf \dfrac{54}{213}\times52.9g[/tex]=[tex]\bf 13.41g[/tex] of Aluminium.
The molar mass of SO3 is grams.
Answer:
80.07 g/mol
Explanation:
Step 1: Define
Molar Mass S - 32.07 g/mol
Molar Mass O - 16.00 g/mol
Step 2: Find molar mass of compound
S = S × 1 = 32.07 g/mol
O₃ = O × 3 = 48.00 g/mol
32.07 + 48.00 = 80.07 g/mol
Answer:
80.06 grams
Explanation:
Edmentum!!
how are heavy elements such as carbon, oxygen,and neon formed during star formation?
Answer:
Neutron star collisions
