What does the skeleton do

Answers

Answer 1

Explanation:

"The skeletal system works as a support structure for your body. It gives the body its shape, allows movement, makes blood cells, provides protection for organs and stores minerals"


Related Questions

how many valence electrons does hydrogen have

Answers

Answer:

Since hydrogen is the first element, its electron configuration is 1s1.

Explanation:

It has only one electron in its valence shell.

Valence electrons are the outermost electrons or electrons in the largest energy level. Hydrogen has only one electron, so that electron is a valence electron.

Answer:

One valence electron !!

Explanation:

What volume, in liters, does 128 grams of O2 occupy at STP?
89.6 L
22.4 L
67.2 L
44.8 L

Answers

Answer: 89.7 L

Explanation:

89.6 volume, in liters, does 128 grams of O2 occupy at STP. Therefore, option A is correct.

What do you mean by volume ?

A volume is simply the amount of space taken up by any three-dimensional solid. A cube, a cuboid, a cone, a cylinder, or a sphere are examples of solids. Volumes differ depending on the shape.

Every three-dimensional object requires some amount of space. The volume of this space is measured. Volume is defined as the space occupied by an object within the boundaries of three-dimensional space. It is also known as the object's capacity.

1 mole Oxygen has mass 32 grams

Mole of Oxygen in 128 g mass = 128 g / 32 g/mol

= 4.0 mol O2

At Standard temperature and pressure this has volume

= 4.0 mol × 22.4 L/mol

= 89.6 L

Thus, 89.6 volume, in liters, does 128 grams of O2 occupy at STP, option A is correct.

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Draw a model to represent the physical property of metals known as ductility, or the ability to be drawn into a wire.

Answers

The model that represents the physical property of metals known as ductility can be seen in the image attached below.

Metals are substances that are good conductors of heat and electricity.

The term ductility is a characteristic of metal and it explains the ability of metals to be drawn into wire. it implies that metal materials can be hammered and beaten into tiny sheets of wires.

The model in the image attached below shows how gold which is metal is drawn into wires.

Learn more about metals here:

https://brainly.com/question/25090336?referrer=searchResults

Use the periodic table to determine which of the
following could be an isotope of bromine (Br).
Check all that apply.
Z = 79, A = 196
Z = 35, A = 79
A = 79, N =44
D Z = 44, N = 44
DONE

Answers

A=79, N=44 lmk if I’m wrong ?

Which of the following has the smallest atomic radius?
a B
b Al
c F
d N
e Ga

Answers

Answer:

c. F

Explanation:

As you go top to bottom down a column of the periodic table, atomic radius increases.

As you go left to right across a period of the periodic table, atomic radius decreases.

Knowing this trend, that means that the smallest atomic radius would be located in the top right of the periodic table. The closest element to that point is fluorine, or answer C.


What is the formula for nickel || dichromate

Answers

Answer: Cr2NiO7 is the molecular formula for nickel II dichromate.

who is princess tianas best friend, if you can get her name right then ill give you brainliest

Answers

Answer:

Oo i think her name is Tiana..... ❤️❤️

Answer:

Charlotte La Bouff

Explanation:

"Lottie" if you will

Rain that containing excess of acid is called

Answers

Answer:

The rain containing excess of acid I called acid rain

Answer:

acid rain

Explanation:

Thats literally what its called

describe a difference in our inner planets and outer planets​

Answers

The four inner planets have slower orbits , slower spins,no rings and they are made out of rock and metal. The four outer planets are made out of hydrogen and helium, they are called gas giants

Volume of 8.625 g of sulphur di oxide at RTP in cm3

Answers

Answer:

The volume of 8.625 g of sulphur dioxide at RTP is approximately 3,230.84 cm³

Explanation:

The question requires the determination of the volume occupied by the gas based on the molar volume of a gas at STP

The given parameters of the sulphur dioxide, SO₂, gas are;

The mass of the given SO₂ gas = 8.625 g

The molar mass of SO₂ = 64.07 g/mol

The number of moles, 'n', in the given sample of SO₂ gas = Mass of SO₂/(Molar Mass of SO₂)

∴ The number of moles of SO₂ in the gas sample = 8.625 g/(64.07 g/mol) ≈ 0.134618386 moles

The molar volume of a gas at RTP is approximately 24 dm³/mole

24 dm³ = 24,000 cm³

∴ The molar volume of a gas at RTP is approximately 24,000 cm³/mole

The volume occupied by a gas at RTP = (The number of moles of the gas) × (The Molar Volume of a gas at RTP)

∴ The volume occupied by the 8.625 g of SO₂ gas at RTP = 0.134618386 moles × 24,000 cm³/mole ≈ 3,230.84 cm³

The volume occupied by the 8.625 g of SO₂ gas at RTP ≈ 3,230.84 cm³.

The parts of the Earth that contain living organisms ​

Answers

Answer:

Biosphere

The Biosphere --contains all the planet's living things. This sphere includes all of the microorganisms, plants, and animals of Earth. Within the biosphere, living things form ecological communities based on the physical surroundings of an area.

Explanation:

Answer:

Biosphere

Explanation:The Biosphere --contains all the planet's living things. This sphere includes all of the microorganisms, plants, and animals of Earth. Within the biosphere, living things form ecological communities based on the physical surroundings of an area. hope this helps (:

What is the answer, just the letter. No explanation needed

Answers

Answer:

Explanation:

f i did this in my class

Answer:

3 rd

Explanation:

yes answer is 3 you can go with it

How many moles is 118 grams of Argon

Answers

Answer:

[tex]\boxed {\boxed {\sf About \ 2.96 \ moles \ of \ Argon}}[/tex]

Explanation:

To convert from grams to moles we must use the molar mass, which is found on the Periodic Table.

Argon: 39.9 g/mol

Use the molar mass as a ratio.

[tex]\frac{39.9 \ g \ Ar}{1 \ mol \ Ar}[/tex]

Multiply by the given number of grams: 118

[tex]118 \ g \ Ar *\frac{39.9 \ g \ Ar}{1 \ mol \ Ar}[/tex]

Flip the fraction so the grams of argon will cancel each other out.

[tex]118 \ g\ Ar * \frac{1 \ mol \ Ar}{39.9 \ g \ Ar}[/tex]

[tex]118 * \frac{ 1 \ mol \ Ar}{39.9 \ g \ Ar}[/tex]

[tex]\frac {118 \ mol \ Ar }{ 39.9 }[/tex]

[tex]2.95739348 \ mol \ Ar[/tex]

The original measurement of grams had 3 significant figures, so our answer must have 3 sig figs.

For the number we calculated, that is the hundredth place. The 7 in the thousandth place tells us to round the 5 to a 6.

[tex]2.96 \ mol \ Ar[/tex]

There are about 2.96 moles of Argon in 118 grams.

How many electrons will strontium lose to satisfy the octet rule?

Answers

Answer:

Two Electrons.

Explanation:

Strontium is the atom with atomic number 38, and electron configuration is [Kr] 5S^2 which mean just two electrons more than Krypton which one of the Noble gases.

1) how can you make a solution more concentrated

Answers

Explanation:

solvent bc when you remove it it becomes more concentrate

the substance that can not be further decomposed by ordinary chemical means is
A.water
B.gold
C.sugar
D.air​

Answers

It’s between c and a

which one of these is NOT a unit for a reaction rate. 1) g/mL 2) M/min​

Answers

Reaction rate would have to do with time.

G/ml is not a unit of time this the answer

How does Natural selection lead to the Evolution of bacteria?

Answers

Answer:

Bacteria can evolve quickly because they reproduce at a fast rate.

Explanation:

Bacteria can evolve quickly because they reproduce at a fast rate. Mutations in the DNA of bacteria can produce new characteristics. A random mutation might cause some bacteria to become resistant to certain antibiotics, such as penicillin.

Bones function as levers for the muscle to provide movement of the body. What refers to increasing the angle of the joint, thus moving two bones farther apart?

A) Abduction

B) Adduction

C) extension

D) flexion​

Answers

Answer:

It would be B

Explanation:

Remember! All ___________________________ are __________________________

but not all Atoms are elements.

Answers

Answer:

all element are atom but all at all atom are element

Explanation:

because all atoms of an element are same whereas atom of different element are different

energy traveling as electromagnetic waves

Radiant

Thermal

Chemical

Mechanical

Answers

Radiant anisishwiwjwkwodixjbx

A mixture of metals with properties different than the metals by themselves is called a(n) __________.

Answers

Answer:

Alloy

Explanation:

ANSWER ASAP THIS IS 6TH GRADE SCIENCE! GIVING BRAINLIEST FIVE STARS ANS A HEART!
Conduction is the transfer of thermal energy through direct contact. Convection is the transfer of thermal energy through the movement of a liquid or gas. Radiation is the transfer of thermal energy through thermal emission.

Answers

Answer:

what are you supposed to answer???

Explanation:

if I have a +2 oxidation number do I give up or accept electrons?​

Answers

Answer:

I will give up the electrons

Explanation:

Consider the following rules:

1. An atom loses electrons if its oxidation number is positive.

2. An atom gains electrons if its oxidation number is negative.

3. An atom neither gains nor loses electrons if its atomic number is zero.

As I have an oxidation number [tex]+2[/tex] that is oxidation number is positive, so, I will give up electrons.

How many electrons are being shared between the two carbon atoms in the covalent compound ethyne? Ethyne has the structure: H−C≡C−H

Answers

Answer:

Three lines between the carbon atoms in the Lewis structure represent three covalent bonds. Each covalent bond is a shared pair of electrons, hence there are six electrons being shared between the carbon atoms in ethyne.

The number of electrons that are being shared between the two carbon atoms in the covalent compound ethyne is six.

What are covalent bonds?

Covalent bond are formed by the sharing of electrons between two atoms.

In ethyne molecule two carbon atoms are present and between two carbon atoms three covalent bonds are present. And each covalent bond is formed by the sharing of two electrons. So three covalent bonds are formed by the sharing of 6 electrons.

Hence in ethyne 6 electrons are being shared.

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Help out please????

Answers

Answer:

B. X= Elements, Y= Compounds

Explanation:

An element is a substance that is made up of only one type of atom. The atoms of an element can combine together chemically to form a molecule but can still exist as an individual atom e.g. Hydrogen atom; H can form molecule H2. Since only one atom makes up an element, its electrons act independently.

Compounds, on the other hand, are substances that are made up of more than one type of atom chemically combined. A compound can only exist as a molecule because it always contains more than one atom bonded together. However, since more than one atom are involved in the chemical bond that holds them together, electrons are shared with other atoms. Example of a compound is H20 containing atoms of hydrogen and oxygen that are chemically combined.

I NEED HELP ASAP PLS

picture included^^^^^^ ^^

brainliest;) ^

Answers

Explanation:

20g of Na and 10g of Cl2 which is in excess?

The equation of the reaction is given as;

2 Na + Cl2  --> 2 NaCl

From the equation;

2 mol of Na reacts with 1 mol of Cl2

Converting the masses of reactants given to mol

Number of moles = Mass / Molar mass

Na;

Number of moles = 20 / 23 = 0.8696 mol

Cl2;

Number of moles = 10 / 71 = 0.1408 mol

In the chemical equation, the ratio was 2: 1 however with the masses, we can tell that Na is in by far excess.

0.8696 mol of Na would require 0.4348 of Cl2 (Present = 0.1408 mol)

This means;

Na - Excess Reactant

Cl2 - Limiting Reactant

Second part; How much NaCl would be produced?

The limiting reactant determines how much of the product is formed.

From the equation of the reactant;

1 mol of Cl2 produces 2 mol of NaCl

0.1408 mol of Cl2 would require x mol of NaCl

1  = 2

0.1408 = x

x = 0.2816 mol of NaCl

Converting to mass;

Mass = Molar Mass * Number of moles

Mass = 58.44 g/mol * 0.2816 mol

Mass = 16.46 g

What are land plants used for?

Answers

Answer:

Land plants are also known as Embryophytes. Embryophytes are complex multicellular eukaryotes with specialized reproductive organs. The name derives from their innovative characteristic of nurturing the young embryo sporophyte during the early stages of its multicellular development within the tissues of the parent gametophyte.

Explanation:

Answer:

there used for mountains , wait I'm just trynna get points ya feel me

Explanation:

Cobalt(II)chloride is commonly obtained from chemical supply houses as a hydrate with the formula CoCl2.6H2O. An analysis showed that 25.0g of this hydrate contains 11.3g of water. What us the present water by weight in this hydrate?

Answers

Answer:

The present water by weight for the hydrate = 45.2%

Explanation:

From the given information;

The present water by weight = (weight of the water/ total weight of the hydrate) × 100

The present water by weight = (11.3/25) × 100%

The present water by weight = 0.452 × 100%

The present water by weight for the hydrate = 45.2%

the law of conversation of mass states that the mass of the reactant is ___ the mass of products

Answers

Answer: equal to

Explanation:

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