guys please help i need to pass this!!

Answer:

three stable isotopes

Neon has three stable isotopes: 20Ne (90.48%), 21Ne (0.27%) and 22Ne (9.25%). Ne and 22Ne are partly primordial and partly nucleogenic (i.e. made by nuclear reactions of other nuclides with neutrons or other particles in the environment) and their variations in natural abundance are well understood.

The statement that is true is the charge of all isotopes are same. The correct option is D.

Isotopes are members of an element family that have the same number of protons but differ in terms of neutrons.

The atomic number of an element on the Periodic Table is determined by the number of protons in its nucleus.

There are three isotopes of neon. Since there is no significant global production of these isotopes, the more plentiful 20Ne and 22Ne are essentially all primordial.

Isotopes can form naturally through radioactive decay of a nucleus or unnaturally by bombarding a stable nucleus with charged particles in a nuclear reactor using accelerators or neutrons.

Thus, the correct option is D as they all have same charge.

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Your question seems incomplete, the missing options are:

- the atomic mass of the three isotopes is the same

-the three isotopes are all radioactive

-the three isotopes are equally abundant in nature

-the charge of all isotopes is the same

Answer:

False

Explanation:

Metalloids are brittle when compared to metals. Most metalloids are neither malleable nor ductile.

Hope this helps.

Answer:

Exothermic reaction is a reaction in which heat is evolved.

Ex-Salt water

Answer:

[tex]\huge\red{happy}&nbsp\green{birthday}&nbsp\pink{dear}&nbsp\orange{lakshu}[/tex]

Answer:what grade this is

Explanation:

Answer:

[tex]\boxed {\boxed {\sf v \approx 0.22 \ cm^3}}[/tex]

Explanation:

We are asked to find the volume of a substance.

We are given the density and the mass. The density of a substance is its mass per unit volume. The formula for calculating density is:

[tex]\rho= \frac{m}{v}[/tex]

We know the density of the substance is 13.6 grams per cubic centimeter and the mass is 3.0 grams.

Substitute these values into the formula.

[tex]13.6 \ g/cm^3= \frac{3.0 \ g }{v}[/tex]

We are solving for the volume, so we must isolate the variable v. First, cross multiply. Multiply the first numerator by the second denominator, then multiply the first denominator by the second numerator.

[tex]\frac{13.6 \ g/cm^3}{1}= \frac{3.0 \ g }{v}[/tex]

[tex]13.6 \ g/cm^3 *v =3.0 \ g *1[/tex]

Multiply on the right side of the equation.

[tex]13.6 \ g/cm^3 *v =3.0 \ g[/tex]

The variable is being multiplied by 13.6 grams per cubic centimeters. The inverse operation of multiplication is division, so we divide both sides of the equation by 13.6 g/cm².

[tex]\frac {13.6 \ g/cm^3 *v}{13.6 \ g/cm^3} =\frac{3.0 \ g }{13.6 \ g/cm^3}[/tex]

[tex]v =\frac{3.0 \ g }{13.6 \ g/cm^3}[/tex]

The units of grams cancel.

[tex]v =\frac{3.0 }{13.6 \ cm^3}[/tex]

[tex]v= 0.2205882353 \ cm^3[/tex]

The original measurement of density has 3 significant figures and the measurement of mass has 2. Our answer must have the least number of sig figs, which is 2. For the number we found, that is the hundredth place. The 0 in the thousandth place tells us to leave the 2 in the hundredth place.

[tex]v \approx 0.22 \ cm^3[/tex]

The volume of the substance is approximately 0.22 cubic centimeters.

Answer:

Biochemistry focuses on the studies of biological matter. ... Medical biochemistry seeks to advance the understanding of chemical structures and processes that constitute health and disease, and underlie transformations between these two states.

Isotones are nuclides that have the same neutron number but a different proton number. Therefore the answer is  C. boron and carbon.

Answer:

c) carbon and boron

Explanation:

They have the same number of neutrons but different number of protons.

They both contain 7 neutrons

Answer:

1) hypothesis

2. independent .

hypothesis is a guess that is tested by an experiment

independent variable is manipulated by the experimenter

Answer:

rudo

Explanation:

rudo means In the Shona language of souther Africa, this simple and wearable boys' name means love.

photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy.

Answer:

Explanation:

They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions. Cells also contain the body's hereditary material and can make copies of themselves. Cells have many parts, each with a different function.

Answer:

B stores food, water and waster

Answer:

Light is one type of radiant energy. Sunshine is radiant energy, which provides the fuel and warmth that make life on earth possible. Thermal energy, or heat, is the energy that comes from the movement of atoms and molecules in a substance. Heat increases when these particles move faster. Geothermal energy is the thermal energy in the earth.

Explanation:

Answer:No, for example electricity doesn't work like physical energy

Explanation:

Answer:

British chemist John Newlands was the first to arrange the elements into a periodic table with increasing order of atomic masses. He found that every eight elements had similar properties and called this the law of octaves. He arranged the elements in eight groups but left no gaps for undiscovered elements.

Answer:  Most elements don't have formulas.  

Explanation:  They exist as single atoms, witn no bonds to another atom.  A few element do exist as molecules, such as )2 and N2, but they are bonded to the same atom.  There are no different elements.

Answer:

1.2341e-5 seconds i.dk how to convert it from scientific notation lol

Explanation:

- Zombie

Answer:

m and o

Explanation:

n is the number between m and o

Answer:

Reaction??

Explanation:

[tex]\huge\pink{\boxed{\tt{\colorbox{pink}{ANSWER}}}}[/tex]

Chemical transformation of a carbon-carbon double bond is the addition reaction.

Explanation:

Consequently, if the bond energies of the product molecules are greater than the bond energies of the reactants, the reaction will be exothermic.

hope it helps

It allows to test a inference, and analyze data to determine if the inference of the observation was correct.

Explanation:

just trying....hope that helps

1.6 grams of oxygen will react with 2.4 grams of magnesium.

Explanation:

Given:

2.4 grams of magnesium.

The reaction between magnesium and oxygen:

[tex]2Mg+O_2\rightarrow 2MgO[/tex]

To find:

The mass of oxygen required to react with 2.4 grams of magnesium.

Solution:

The mass of magnesium = 2.4 g

Moles of magnesium =[tex]\frac{2.4 g}{24.305 g/mol}=0.0987 mol[/tex]

[tex]2Mg+O_2\rightarrow 2MgO[/tex]

According to the reaction, 2 moles of magnesium reacts with 1 mole of oxygen, then 0.0987 moles of magnesium will react with:

[tex]=\frac{1}{2}\times 0.0987 mol=0.04935\text{mol }O_2[/tex]

Moles of oxygen required = 0.04935 mol

The mass of 0.04935 moles of oxygen :

[tex]=0.04935\times 31.999 g/mol=1.579 g\approx 1.6 g[/tex]

1.6 grams of oxygen will react with 2.4 grams of magnesium.

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Answer:

1.3 meters

Explanation: use newton third law equation.

Answer:

6) gary suffering from slimotosis

7) duration of rubbing seaweed/drinking dr. kelp

8) whether slimotosis gets cured or not

9) rubbing seaweed and drinking dr. kelp cures slimotosis

Explanation:

Answer:

1.3 x 10^-15J

Explanation:

Answer:Bunser buner

Explanation: It is meant to heat solid and liquid substance in the lab.

Answer: I think its hydrogen, good luck

Explanation:

Answer:

Last diagram

Explanation:

Here, only individual atoms of argon are there in this gas

Answer:

The primary properties of visible light are intensity, propagation-direction, frequency or wavelength spectrum and polarization.

Explanation: