What is a reflex? I am in k12 so I need the k12 answer please hurry VERY URGENT will give brainlist to first to answer.
Answer:
A reflex is an involuntary, or automatic, action that your body does in response to something — without you even having to think about it. You don't decide to kick your leg, it just kicks. There are many types of reflexes and every healthy person has them. In fact, we're born with most of them
Explanation:
PLEASE MARK ME AS BRAINLIEST
Answer: An action that is performed.
Explanation: Like a body movement that is fast or slow!
True or False, acids contain a "H group" and bases contain an "OH group"
Answer:
Cant help srry
Explanation:
2Mg + O2
2Mgo
what is the coefficient
Answer:
In this chemical equation, there are two main elements. Those elements are magnesium (Mg) and oxygen (O). Molecules are a group of atoms bonded together, and in this case, the oxygen molecules is O2, but not 2MgO because there are two different molecules in this compound. Coefficients are a number that multiply an entire molecule, and are also placed in front of it. In this case, O2 has no coefficient, but a subscript of 2. But, every molecule in this equation must have a coefficient and if add a coefficient of 1 to the oxygen molecule, it does nothing to the overall balancing of equations.
So, the answer: coefficient to the oxygen molecule is 2.
Have a great day/night, stay safe, and merry christmas!
. Find the mass of 2.61 moles of H2O2.
Mass of H₂O₂ = 88.778 g
Further explanationThe mole itself is the number of particles contained in a substance amounting to 6.02.10²³
Mole can also be determined if the amount of substance mass and its molar mass is known
[tex]\large {\boxed {\boxed {\bold {mol = \frac {mass} {molar \: mass}}}}[/tex]
moles of H₂O₂ = 2.61
So the mass of H₂O₂(MW=34,0147 g/mol) :
[tex]\tt mass=mol\times MW\\\\mass=2.61\times 34,0147 g/mol\\\\mass=88.778~g[/tex]
what is the molar mass of ammonium fluoride?
Answer:
37.04 g/mol in the mass of ammonium fluoride
Explanation:
Calculate the number of atoms of each element. 2,6,15,3,8,5?
Answer:
P 6 atoms
O 15 atoms
Explanation:
P = 2×3= 6
O = 5×3= 15
Which position of Earth would give a
snowman the best chances of survival
if he is built in the northern
hemisphere?
A. Position A
B. Position B
C. Position C
D. Position D
Position D is the best position of earth that give a snowman the best chances of survival.
Position D is the best position of Earth would give a snowman the best chances of survival if he is built in the northern hemisphere because at this position the southern hemisphere is in front of the sun and the northern hemisphere is present at the back.
At this position, the autumn season is started which has lower temperature so the snowman has the best chances of survival in that low temperature so we can conclude that position D is the best position of earth of Earth that would give a snowman the best chances of survival if he is built in the northern.
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What type of energy conversion is taking place inside a flashlight when it is on?
Answer:
electrical energy
When the flashlight is turned on, the chemical energy is first transformed into electrical energy and then into light energy. CHEMICAL bonds. It is released during a chemical reaction (change). by flowing electrons (negatively charged particles).
Answer:
Electrical Energy
Explanation:
When the flashlight is turned on, the chemical energy is first transformed into electrical energy and then into light energy. CHEMICAL bonds. It is released during a chemical reaction (change). by flowing electrons (negatively charged particles).
is the electrolysis of water an oxidation-reduction reaction??
Answer:
Yes
Explanation:
Electrolysis is an example of redox reaction because reduction takes place at cathode and oxidation takes place at anode and both of these reactions take place simultaneously.
what atoms are in Au(NO2)2
What is glucose? How is it formed?
Answer:
Glucose is a simple sugar with the molecular formula C₆H₁₂O₆. Glucose is the most abundant monosaccharide, a subcategory of carbohydrates.
Glucose is mainly made by plants and most algae during photosynthesis from water and carbon dioxide, using energy from sunlight, where it is used to make cellulose in cell walls, which is the most abundant carbohydrate.
SOMEONE, PLEASE HELP ME AND ILL HELP YOU THIS TAKES MY WHOLE GRADE
What is a pure substance?
A. a material that cannot be physically separated into its parts
B. a substance that cannot be separated or broken down into simpler substances by chemical means
C. the smallest unit of an element that has the chemical identity of that element
D. an arrangement of all the known elements in order of their atomic number
#2 - TRUE OR FALSE: Smelting is a process that uses heat to separate pure metals from a mixture that also contains other substances.
A. True
B. False
#3 - TRUE OR FALSE: Currently, 200 elements are known.
A. True
B. False
#4 - What is an element?
A. a material that cannot be physically separated into its parts
B. the smallest unit of an element that has the chemical identity of that element
C. a substance that cannot be separated or broken down into simpler substances by chemical means
D. an arrangement of all the known elements in order of their atomic number
#5 - TRUE OR FALSE: Only two elements can have exactly the same set of properties
A. True
B. False
#6 - What is an atom?
A. a substance that cannot be separated or broken down into simpler substances by chemical means
B. an arrangement of all the known elements in order of their atomic number
C. a material that cannot be physically separated into its parts
D. the smallest unit of an element that has the chemical identity of that element
#7 - TRUE OR FALSE: Atoms are so tiny that they cannot be seen with an optical microscope.
A. True
B. False
#8 - TRUE OR FALSE: Gold and silver are both soft metals that react vigorously with water and air.
A. True
B. False
#9 - What is the periodic table?
A. a substance that cannot be separated or broken down into simpler substances by chemical means
B. a material that cannot be physically separated into its parts
C. the smallest unit of an element that has the chemical identity of that element
D. an arrangement of all the known elements in order of their atomic number
#10 - TRUE OR FALSE: The first column of the table contains a group of very reactive metal elements.
A. True
B.False
Answer:
1#B
2#A
3#B
4#C
5#A
6#D
7#A
8#B
9#D
10#B
Explanation:
The Earth takes approximately 365.25 days to revolve around
the Sun. To account for the time beyond 365 days, we add a
day to the calendar
The Earth takes approximately 365.25 days to revolve around
the Sun. To account for the time beyond 365 days, we add a
day to the calendar
that's right
Which phrase best describes speed?
A. Rate of change in velocity.
B. Rate of change in position to motion.
C. Total change in position as described by distance and direction.
D. Rate of motion.
Answer:
D
Explanation:
Rate of motion
please help me!!ASAP
Answer:
particle E and R
Explanation:
isotopes = atoms of same element with same proton number but different number of neutron
nucleon number = proton number + number of neutrons
particle E
- nucleon number = 16
- proton number = electron = 8
- number of neutrons = 16-8 = 8 ✅
particle Q
- nucleon number = 18
- proton number = electron = 9
- number of neutrons = 18-9 = 9
particles R^2-
- nucleon number = 18
- proton number = 10-2 = 8
- number of neutrons = 18-10 = 8 ✅
particle T^+
- nucleon number = 22
- proton number = 10+1 = 11
- number of neutrons = 22-11 = 10
someone please give me a sentence using “chemical bond”
Answer:
Rust, iron oxide, is weak mechanically although its chemical bonds are strong.
Explanation:
Separate the following gene sequence into codons: TACGTCTTACGCTATGTC
Answer really quick plssss
Answer:
I think it's AUGCAGAAUGCGAUACAG
1. The diagram models the forces acting on a box. 2N 2N- Box - 2 N 5 N Which of the following best describes the motion of the box?
Answer: The box is moving downward with increasing speed.
Explanation:
The diagram models the forces acting on a box. 2N 2N- Box - 2 N 5 N .The box is moving downward with increasing speed best describes the motion of the box.
What forces act on a box?The normal force acting on the box is equal to and opposite to its weight. This term equals the force of gravity when the box is on a level surface. To calculate the normal force of the box, use our given mass and gravity's acceleration.
When an object interacts with another object, it experiences a push or pull that causes it to change state, either from rest to uniform motion. It is a magnitude and direction vector quantity.
A representation of the forces acting on the object. The object is represented by a dot, and forces are represented by arrows pointing away from the dot. Force diagrams are another name for them.
Thus, The box is moving downward with increasing speed best describes the motion of the box.
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A can of soda contains many ingredients, including vanilla, caffeine, sugar, and water. Which ingredient is the solvent? caffeine sugar vanilla water
Answer:
Water
Explanation:
Water is universal solvent it can disolves other things
From the can of soda containing many ingredients, including vanilla, caffeine, sugar, and water, the solvent is water.
What is a solvent?A solvent is a substance that dissolves other substances. This solvent is usually in liquid form.
Water is universal solvent, this implies that water dissolves almost every substance.
Thus, from the can of soda containing many ingredients, including vanilla, caffeine, sugar, and water, the solvent is water.
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Please help fast I’ll mark you bbrainlist
Answer:
Option 2
Explanation:
Take a close look at globe 2 North(N) is facing towards the sun.
I don't know what to do about this now. I like her a lot; I don't want to just give up on this because I see relationship potential with this girl. And I feel she genuinely does enjoy the time she spends with me too.
Answer:
Awe ...
Explanation:
PLS HELP
What is the correct order for this food chain?
A) grass, lion, bacteria
B) antelope, lion, grass
С) antelope, bacteria, grass
D) grass, antelope, lion
Answer:
Creo que es D) grass, antelope, lion
Explanation:
El antílope se alimenta de hierba y el león del antílope.
In an ecosystem, the correct order for the food chain is grass, antelope, lion.
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.There are different types of ecosystems present.
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in the equation 3x-3=18 what is x?
Answer:
x=7
Explanation:
3x-3=18
-3 moves over the 18 side and becomes +3.
18 + 3 =21
3x=21
now you need to divide 3 with 21 giving you 7
Answer:
The answer is seven bc X is seven.
How many chlorine atoms are on the products side of the reaction 2 Li +
MgCl2 → 2 LiCl + Mg?*
Answer:
2 chlorine atoms on the product side.
a compound has an empirical formula of C6H6NO. what is its molar formula, if its molar mass is 216.2 g/mol
Answer: C12H12N2O2
Explanation:
What is transmutation?
A. the end product of radioactive decay
B. one type of radioactive decay
C. the steps that make up a decay series
D. the conversion of one element into another
Answer:
D. the conversion of one element into another
Explanation:
Transmutation is the action of changing or the state of being changed into another form. Therefore, D is the correct answer choice.
Answer:
the conversion of one element into another
Explanation:
edge
An atom has 15 electrons. How many are on each shell? *
0 2,8,7
0 2,8,5
8,7
15
Answer:
So... for the element of PHOSPHORUS, you already know that the atomic number tells you the number of electrons. That means there are 15 electrons in a Phosphorus atom. Looking at the picture, you can see there are two electrons in shell one, eight in shell two, and five in shell three.
A sample taken from a layer of mica in a canyon has 2.10 grams of potassium-40. A test reveals it to be 2.6 billion years old. How much
potassium-40 was in the sample originally if the half-life of potassium-40 is 1.3 billion years?
A. 4.20
B. 8.40 g
c. 12.6 g
D. 16.8 g
E. 25.2 g
Answer:
The correct answer is b
Explanation:
Answer:
Correct Answer is (B)
Explanation:
Got it right on plato Chemistry Post test
Hope I helped you out :)
What is a property of bases? Question 6 options: slippery touch sour taste ability to form hydronium ions all of the above
The ionization energies for removing successive electrons from sodium are 496 kJ/mol, 4562 kJ/mol, 6912 kJ/mol, and 9544 kJ/mol. The great jump in ionization energy after the first electron is removed indicates that
Answer:
The great jump in ionization energy indicates that the most stable form of the sodium atom- the noble gas configuration, was reached after the removal of the first electron.
Explanation:
Sodium atom has an electronic configuration of 2,8,1. After the first electron has been removed from a sodium atom, the ion formed now has a noble gas configuration which assigns stability to it.
Noble gases have very high ionization energy due to the stability conferred on the by virtue of their completely filled outermost shells. They do not have need to lose electrons to attain stability. Also, because they have the most protons of their period, their atomic radius is reduced as electrons are pulled into the nucleus.
So, the great jump in ionization energy indicates that the most stable form of the sodium atom- the noble gas configuration, was reached after the removal of the first electron.
The great jump in ionization energy after the first electron is removed indicates that the next electron is removed from an inner shell and not from the valence shell.
The ionization energy is defined as the energy required to remove an electron from an atom. There are ionization energies in an atom as there are electrons in the atom.
For sodium atom, five ionization energies are shown which are; 496 kJ/mol, 4562 kJ/mol, 6912 kJ/mol, and 9544 kJ/mol. The great jump in ionization energy after the first electron is removed indicates that the next electron is removed from an inner shell and not from the valence shell.
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