Answer:
A. Toaster
Explanation:
It converts electrical energy to heat.
Describe THREE things that happen at CONVERGENT plate boundaries
HELP!
Which of the following pairs of elements would form an ionic compound?
phosphorous/bromine
potassium/sulfur
nitrogen/iodine
oxygen/fluorine
Answer:
Explanation:
Ionic compound : These are the compounds in which the atoms are bonded through the ionic bond. The ionic bond are formed by the complete transfer of the electrons.
That means, the atom which looses the electron is considered as an electropositive atom and the atom which gains the electron is considered as an electronegative atom.
And these bonds are formed between one metal and one non-metal.
From the given pairs of elements, potassium and sulfur, magnesium and chlorine are form ionic compound because potassium and magnesium are the metals and sulfur and chlorine are the non-metals. So, they can easily form ionic compound by the complete transfer of electrons.
While the other pairs, sodium and potassium are the metals, nitrogen and iodine, chlorine and bromine, helium and oxygen are the non-metals. They do not form ionic bond.
3. How many grams are in 7.83 X 10 23 atoms of iron?
Answer:
8010.09
Explanation:
7.83 X 10 23
What is soil? where do the water and nutrients found in the soil come from?
Fastest and correct gets brainliest!
Answer:
Soil is a mixture of organic matter, minerals, gases, liquids, and organisms that together support life.
We get these from the plants that grow, and the animals that we eat that eat the plants. Most soils have a large supply of nutrients in them, and they get taken up by plants when plants absorb water. Soils need to be healthy to grow large quantities of plants, and animals need plants to grow strong.
Explanation:
Plz mark brainliest thanks
Answer:
Nutrients get into the soil many different ways: from decomposed animal waste and dead plants, the atmosphere, weathering of rocks and bacteria conversions. Soil is a mixture of organic matter, minerals, gases and more, that together support life's for plants
Explanation:
plz answer plz i swear will mark u brainiest
Answer:
B
Explanation:
sorry if it is wrong
Bill nye the science guy/ motion video worksheet
(11) The scale is measuring the pull of the Earth's ___ on the apples mass.
(12) We measure mass in ___ or kilograms
(13) In ___ the laws of motion still apply
(14) Even if it does not seem like it, all of us here are moving pretty ___.
(15) Everything in the ___ is all in motion
GRAVITY, GRAMS, FORCES, MASS, FAST, UNIVERSE, SPACE, ACTION
I did 1-10 I need 11-15 still
9th grade science :)
Answer:
11) gravity
12) grams
13)
14) fast
15)space
Answer:
11)To move a mass you need a force.
Force = mass x acceleration
12) An object at rest stays at rest and an object in motion stays in motion unless acted on by an outside force.
13)For every action there is an equal and opposite reaction.
14) fast
15)False
Explanation:
Which of the following is a property of a non-metal?
luster
ductile
malleable
does not conduct heat and electricity
Answer:
luster
Explanation:
Answer:
malleability
ductility
heat conduction
current conduction
luster
Explanation:
got it right on edg 2022
An atom that has one or two valence electrons is most likely to be - Nonreactive only
A) with nonmetals
B) Reactive with metals
C) Highly reactive
D) nonreactive
Answer:
C) Highly reactive
Explanation:
An atom with one or two valence electrons more than a closed shell is highly reactive, because the extra valence electrons are easily removed to form a positive ion
According to the electronic configuration, an atom that has one or two valence electrons is most likely to be highly reactive as it can easily loose 1 or 2 electrons.
What is electronic configuration?Electronic configuration is defined as the distribution of electrons which are present in an atom or molecule in atomic or molecular orbitals.It describes how each electron moves independently in an orbital.
Knowledge of electronic configuration is necessary for understanding the structure of periodic table.It helps in understanding the chemical properties of elements.
Elements undergo chemical reactions in order to achieve stability. Main group elements obey the octet rule in their electronic configuration while the transition elements follow the 18 electron rule. Noble elements have valence shell complete in ground state and hence are said to be stable.
Learn more about electronic configuration,here:
https://brainly.com/question/29757010
#SPJ6
**PLEASE HELP** If you were presented with a preserved brain specimen, but weren’t told whether it was from a human or a sheep, how would you determine which animal it was from? Describe at least three differences you would use to help determine your answer.
Answer:
size-humans brains are usually larger than animals, shape-some animal brains are shaped very odd, and the cerebrum-that is the part of the brain that makes us human.
The three difference between animal brain and human brain will be state out on the basis of size, shape and number of folds.
What is brain?Brain is the main central part of the nervous system of all organism present in the earth.
Three differences between the structure of human brain and animal brain.
Size of the human brain is generally larger than the animal brain.Shape of the brains for humans and animals are different as they both have differnt folds in that.Cerebrum is present only in mammals, so that some animals will not have cerebrum.Hence three differences between human and animal brains are listed above.
To know more about structure of brains, visit the below link:
https://brainly.com/question/5361122
#SPJ2
Write the correct formula for the following compounds.
1. One ingredient in organic fertilizer contains an equal number of sodium and nitrogen atoms and three times as many oxygen atoms as nitrogen
atoms.
2. A major component of rocket fuel is hydrazine, a compound which contains two nitrogen atoms and twice as many of hydrogen atoms.
3. One of the gases responsible for acid rain contains sulphur atom for every three atoms of oxygen.
4. This compound contains one Lithium atom for every three atoms of Bromine.
5. Butane is a compound that is used as fuel in lighters and camp burners. It contains four carbon atoms and ten hydrogen atoms.
Answer:
79
Explanation:
What must be true of a disproportionate substance?
A. It is composed of oxygen.
B. It is both a reactant and a product.
C.It has an oxidation number of 0.
D. It gains and loses electrons.
Answer:
Answer is D.it gains and loses electrons.
Explanation:
I hope it's helpful!
Please help me
How many hydrogen(H) atoms are in 3(NH₄)₂Cr₂O₇
And How many Nitrogen(N) atoms are in 3(NH₄)₂Cr₂O₇
Answer:
24 H
6 N
Explanation:
3 × (4 × 2) = 24 H
3 × 2 = 6 N
what is the deffinition of interia
Answer:
Explanation:
-a tendency to do nothing or to remain unchanged
-a property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force.
Answer:
inertia, property of a body by virtue of which it opposes any agency that attempts to put it in motion or, if it is moving, to change the magnitude or direction of its velocity
Explanation:
What role does blood play before cellular respiration can occur?
Blood releases energy from very small molecules.
Blood carries energy from the cytoplasm to a mitochondrion.
Blood delivers oxygen and glucose to cells.
Blood delivers carbon dioxide and water to cells.
Answer:
B) Blood carries energy from cytoplasm to a mitochondrion
Hope this could help!
Explanation:
Answer:
C.
Explanation:
Blood provides your body with oxygen and glucose, which provides cellular respiration with the needed nutrients.
If air is contaminated with unwanted substances, it is said to be polluted. Which of these places would most likely to have polluted air?
(a) Village
(b) Forest
(c) Industrial area
(d) Residential area
Answer:
Forest. Because as u saw last year with the Australian forest fire it was bad.
Industrial area would most likely to have polluted air. Therefore, the correct option is option C.
What is pollution?Pollution, also known as environmental pollution, is the addition of any material or energy source to the environment with a rate that is greater than its capacity for dilution, decomposition, recycling, or storage in a safe form. The three main types of pollution were air pollution, water contamination, and land pollution, which are often categorised by environment.
Particular pollutant kinds, like plastic, light, and noise pollution, are also of concern to contemporary civilization. Pollution of all kinds frequently has an adverse effect on the health and wellbeing of people as well as the environment and wildlife. Industrial area would most likely to have polluted air.
Therefore, the correct option is option C.
To know more about pollution, here:
https://brainly.com/question/29765561
#SPJ2
State two factors on which the potential energy of a body at a certain height above the ground depends.
Explanation:
It depends on Mass and Height above ground.
P.E. - mgh
Mark me BrAinLieST.
How many moles in 5.125g of NaCl? In equation form!
Plzzzz! HELP ME!
Answer:
0.088mole
Explanation:
Given parameters:
Mass of the compound = 5.125g
Unknown:
Number of moles = ?
Solution:
To solve this problem, we need first find the molar mass of the given compound.
Molar mass of NaCl = 23 + 35.5 = 58.5g/mol
So;
Number of moles = [tex]\frac{mass}{molar mass}[/tex] = [tex]\frac{5.125}{58.5}[/tex] = 0.088mole
I need help on thiss
The reaction is not balanced
Further explanationGiven
Reaction
2Fe(s)+3O₂(g)⇒2Fe₂O₃(s)
Required
The number of atoms
Solution
In a balanced chemical equation, the number of atoms in the compound that reacts (the reactants and products) will have the same number
Reactants : Fe(s)+O₂(g)
Fe = 2 atoms
O = 3 x 2 = 6 atoms
Products : Fe₂O₃(s)
Fe = 2 x 2 = 4 atoms
O = 2 x 3 = 6 atoms
The reaction is not balanced because the number of Fe atoms is not the same
The balanced reaction should be:
4Fe(s)+3O₂(g)⇒2Fe₂O₃(s)
The sediment left behind by a glacier is typically
Answer:
It's typically a mixture of particles and rocks of all sizes
Explanation:
GUYS PLEASE HELP ME IM TAKING A TEST. What is the number of moles in 1216 g Sr3(PO4)2?
If a molecular formula is C8H12 O2 , what is the empirical
formula?
a Cs H12O2
b C2H3O
с C4H60
d C4H30
Place help asap
. Your mother is preparing dough for making bhaturas, and she added a
pinch of yeast and some sugar to it. She kept the mixture in a warm place.
After an hour she observes that the dough has increased in volume.
a) Why did the dough increase in volume?
b) Do you think there is a change in smell and taste of dough? Give
reason for your answer.
c) Name the process observed here. Also mention another food item
where this process is used.
Which of the following has the same empirical and molecular formula?
O P3N5
O C4H8
O C5H1005
Answer:
O C4H8
Explanation:
Which statements are correct about a flowering plant? It may have both male and female flowers. It may have only male or female flowers. It may have both male and female parts in the flower. It must have both male and female parts in the flower.
Answer: the last one, It must have both male and female parts in the flower.
Explanation:
why plastic containers are prefered for storing food
Answer:
Plastic is non-reactive. It does not react with water and air. Plastic is light, strong and durable and can be moulded into different shapes and sizes. It is cheaper than metals. Plastics are poor conductors of heat and electricity and can be used for making handles of frying pans.
*WILL GIVE BRAINLIEST*
An electron resides in the n=5 shell of a hydrogen atom. Relaxing to which shell will emit a photon of light that resides in the visible spectrum?
a. n=1
b. n=2
c. n=3
d. n=4
e. n=5
I believe the answer is B.) n=2
A population of white moths moves into an area dominated by grey moths. How do you think the introduction of white moths will impact the grey moths?Explain your answer.
Answer:
Explanation:
In an ecosystem, the introduction of white moths will impact the grey moths as there will be an increase in competition for the resources.
What is an ecosystem?Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.
Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.
Learn more about ecosystem,here:
https://brainly.com/question/13979184
#SPJ2
Elements that easily gain (steal) electrons tend to have-
O high ionization energy and more than 4 valence electrons
O low ionizations energy and less than 4 valence electrons
O high ionization energy and less than 4 valence electrons
O low ionization energy and more than 4 valence electrons
Answer:
O low ionization energy and more than 4 valence electrons
Explanation:
please Mark as BRAINLIST answer
Elements that easily gain (steal) electrons tend to have low ionization energy and more than 4 valence electrons. Therefore, the correct option is option D.
What is element?The quantity of protons an element has defines it. An element's atoms all contain the same amount of protons, but its electron and neutron counts might vary. Ions are produced by altering the electron to proton ratio, whereas isotopes are produced by altering the neutron count.
118 known elements are present. A study is being done to create element 120.1. The periodic table will have to modified to include element 120 after it has been created and validated. Elements that easily gain (steal) electrons tend to have low ionization energy and more than 4 valence electrons.
Therefore, the correct option is option D.
To know more about element, here:
https://brainly.com/question/29545466
#SPJ6
hey can anyone help me with this please ?
If 220 grams of C3H8 react with 20 grams of O2, how much CO2 can be formed? help plz
Answer:Hope it can help you!
Explanation:
If 220 grams of C3H8 react with 20 grams of O2, the amount of CO2 formed in the process is 16.5 grams of CO2
The equation for this reaction will be as follows:
[tex]\mathbf{C_3H_8 + 5O_2 \to 3CO_2 + 4H_2O}[/tex]
From the given information:
The number of moles of C₃H₈ present can be computed as:
[tex]\mathbf{no \ of \ mole s= \dfrac{mass}{molar \ mass}}[/tex]
[tex]\mathbf{no \ of \ mole s= \dfrac{220 \ g}{44 \ g/mol}}[/tex]
[tex]\mathbf{no \ of \ moles \ of \ C_3H_8=5 \ moles}[/tex]
The number of moles of O₂ present in the reaction is:
[tex]\mathbf{no \ of \ mole s= \dfrac{20 \ g}{32 \ g/mol}}[/tex]
[tex]\mathbf{no \ of \ moles\ O_2= 0.625 \ moles}[/tex]
Now, from the above-balanced chemical equation, the amount of CO₂ that can be formed depends largely on the amount of O₂ present.
As such;
the number of moles of CO₂ formed can be estimated as:[tex]\mathbf{= \dfrac{0.625 \ moles \ of \ O_2 \times 3 \ moles \ of \ CO_2 }{5 \ moles \ of \ O_2}}[/tex]
[tex]\mathbf{= 0.375 \ moles \ of \ CO_2 \ is \ formed}[/tex]
Since molar mass of CO2 = 44.01 g/mol
The mass of CO2 in grams = 0.375 moles × 44.01 g/mol
= 16.5 grams of CO2
Therefore, we can conclude that the amount of CO2 formed in the process is 16.5 grams of CO2.
Learn more about chemical equations here:
https://brainly.com/question/12271256?referrer=searchResults