Someone pls help me I will make you brain

Answer:

Well 50 of course

Explanation:

5 days per tasks is like saying 10 times 5 which is 50.

Answer:

5

Explanation:

Answer:

You need the mass composition of the compound.

This composition works fine for the formula mass 150 amu.

C: 40.0%

H: 6.7%

O: 53.3%

From that, you can solve the problem following theses steps:

1) Convert mass composition fo molar ratios by dividing ech element by its atomic mass =>

C: 40.0 / 12 = 3.33

H: 6.70 / 1 = 6.70

O: 53.3 / 16 = 3.33

2) Divide all the numbers by the smallest one =>

C: 3.33 / 3.33 = 1

H: 6.70 / 3.33 = 2

O: 3.33 / 3.33 = 1

3) Write the empirial formula and calculate its mass:

C H2 O => 1 * 12.0 g/mol + 2 * 1.0 g/mol + 1 * 16.0 g/mol = 30 g/mol

4) Calculate how many times the empirical mass is contained in the molecular mass:

150 / 30 = 5

5) Conclusion:

The molecular formula is C5 H10 O5, i.e. the number of each atom in the molecular formula are:

C =5, H = 10, O = 5

Explanation:

Antoine Lavoisier is the answer

Answer:

Antoine Lavoisier is the father of chemistry

Explanation:

Antoine-Laurent de Lavoisier, also Antoine Lavoisier after the French Revolution, was a French nobleman and chemist who was central to the 18th-century chemical revolution and who had a large influence on both the history of chemistry and the history of biology.

Answer:

a

Explanation:

The object with greater mass is having greater kinetic energy. Here, all the objects has the same velocity therefore, the bicycle is having least kinetic energy.

Kinetic energy is a form of energy generated by virtue of the motion of the object. The kinetic energy is related to the mass and velocity of the body by the expression below:

KE = 1/2 mv².

As per this equation, kinetic energy increases with an increase in mass or/ and velocity. The substance with greater mass is possessing the greater kinetic energy.

A dump truck has greater mass than a car and bicycle. Thus, at the same velocity for all, the greater kinetic energy is for the truck and the least kinetic energy is for the bicycle having the least mass here. Thus, option A is true.

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Answer:

A

Explanation:

I just did learned all about this

According to the forces of attraction , ice is a solid which will melt under applied pressure.

Forces of attraction  is a force by which atoms in a molecule  combine. it is basically an attractive force in nature.  It can act between an ion  and an atom as well.It varies for different  states  of matter that is solids, liquids and gases.

The forces of attraction are maximum in solids as  the molecules present in solid are tightly held while it is minimum in gases as the molecules are far apart . The forces of attraction in liquids is intermediate of solids and gases.

The physical properties such as melting point, boiling point, density  are all dependent on forces of attraction which exists in the substances.

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Answer:

the sun doesn't shine on that half

Explanation:

Answer:

Today, the atom is defined as the smallest particle that can be considered an element.

Explanation:

Answer:

Today,the atom is defined as the smallest particle that can still be considered an element.

Answer:

B) protons and neutrons are shared by two atoms so as to satisfy the requirements of both atoms

Explanation:

na is element

others are compounds

Answer:

Ionic bonds can form between nonmetals and metals, while covalent bonds form when electrons are shared between two nonmetals.

Explanation:

An ionic bond is formed between the electropositive and electronegative bonds. In the periodic table, it is formed between s block and p block elements.

There are different types of chemical bonds: Ionic bonds, covalent bonds, and coordinate bonds.

Ionic bonds, also known as electrovalent bonds, are a type of linkage created in a chemical molecule by the electrostatic attraction of ions with opposing charges. When the valence (outermost) electrons of one atom are permanently transferred to another atom, a bond of this kind is created.

It takes place in positively charged cation and negatively charged anion. This type of bond is seen in NaCl, CaCl2, and other molecules.

Metal and non-metal, ionic bonding form. Ionic bonds, as opposed to covalent ones, involve the transfer of valence electrons between atoms.

An ionic bond is formed between the electropositive and electronegative bonds. In the periodic table, it is formed between s block and p block elements.

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Answer:

Cumulus Clouds are __puffy _____ clouds with ___flat _______ bases.

The force exerted on the parked car by the moving car is –30000 N

To solve this question, we'll begin by calculating the deceleration of the moving car. This can be obtained as follow:

Initial velocity (u) = 10 m/s

Final velocity (v) = 0 m/s

Time (t) = 0.5 s

[tex]a = \frac{v - u}{t} \\\\ a = \frac{0 - 10}{0.5}\\\\a = \frac{- 10}{0.5}[/tex]

Finally, we shall determine the force exerted by the moving car on the parked car. This can be obtained as follow:

Mass of moving car (m) = 1500 Kg

Acceleration (a) = - 20 m/s

F = ma

F = 1500 × (-20)

NOTE: The negative sign indicate force is in opposite direction to the parked car.

Therefore, the force exerted on the parked car by the moving car is –30000 N

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Answer:

Molecule

Explanation:

Two or more atoms linked/bonded together is called a molecule.

Answer:

a combination of two or more elements that are combined in a certain ratio

Explanation:

A chemical compound is a chemical substance composed of many identical molecules composed of atoms from more than one element held together by chemical bonds. A molecule consisting of atoms of only one element is therefore not a compound.

Answer:

IS A SUBSTANCE AND MIXTURE

Answer:

It's charge will be positive

Explanation:

4>2

Suelo, grava, bolas de algodón, material de desecho, carbón, arena y astillas de madera.

El suelo, la grava, las bolas de algodón, los desechos, el carbón, la arena y las astillas de madera son materiales extraídos del medio ambiente que nos permiten mejorar la filtración del agua porque estos materiales filtran partículas y otras impurezas del agua y la hacen potable.

La arena y la grava se consideran buenos filtros de agua porque forman capas permeables que filtran el agua. El agua puede pasar lentamente a través de estas capas permeables y la mayoría de las partículas de suciedad quedan atrapadas, por lo que podemos concluir que los materiales anteriores se pueden utilizar como filtros de agua.

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Answer:

well maybe it is open ocean (or the euphotic  zone, witch is not an answer choice)

Explanation:

The top zone is the euphotic or sunlit zone. This is the ocean zone that sunlight penetrates. Because this zone gets sunlight, photosynthesis can occur and plants can grow here. The sunlit zone goes down to about 660 feet.

Answer: A toaster

Explanation: A toaster is an house held item that is used for heating and toasting bread and other stuff.

Answer:

The prediction of the student about the amount of reactant and product is incorrect.

No, I do not agree with the student’s prediction because the amount of reactant is always equals to the amount of product. According to the Law of Conservation of Mass, mass cannot be created nor destroyed. Therefore in any chemical reaction the mass of the products must equal or same to the mass of the reactants so according to this law, the prediction of the student is incorrect.

Explanation:Give brailiest please

Answer:

The chemical reaction that occurs when vinegar and baking soda (sodium bicarbonate) are combined, creates a gas that is known as carbon dioxide (or CO2). I would agree with the student's prediction because the atoms rearrange themselves to create the product.

Explanation:

Hope this helps! Pls give brainliest!

Answer:

In Test 1 the person substantially did better and either had better knowledge of the subject or studied for it more then they did for Test 2.

Explanation:

Answer:

Volatile

Explanation:

Nonmetal are usually volatile, which means it evaporate easily.

--

Easy.

Answer:

Volatile

Explanation:

Nonmetals are usually volatile, so it means that they can evaporate easily.

# of neutrons = mass number - atomic number

                      = 17 - 8

                      = 9