Write the number of atoms and name of each element in each chemical formula. Use the periodic table
in Canvas for assistance or you may Google Periodic Table.

(Example: CuNO3 - Copper + 3 oxygen

Hi can someone please help me ? I’ll give you brainlest I just started 6th grade I really need help

Answer:

D. 1 C, 4 O and 4 H

Explanation:

a p e x, just took the quiz

According to  law of conservation of mass, the  set of atoms that must make up the equation's reactants is  1 C, 4 O and 4 H.

According to law of conservation of mass, it is evident that mass is neither created nor destroyed rather it is restored at the end of a chemical reaction .

Law of conservation of mass and energy are related as mass and energy are directly proportional which is indicated by the equation E=mc².Concept of conservation of mass is widely used in field of chemistry, fluid dynamics.

Law needs to be modified in accordance with laws of quantum mechanics under the principle of mass and energy equivalence.This law was proposed by Antoine Lavoisier in the year 1789.

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Answer:

A heterogeneous mixture

Explanation:

A heterogeneous mixture is a mixture that is not uniform in composition. This means that we can tell that there is more than one component in the mixture. An example of a heterogeneous mixture would be milk and cereal.

The opposite is a homogeneous mixture, which is uniform in composition. An example of a homogeneous mixture is air. There are many different particles surrounding us, but we can't tell.

A salad dressing that consists of oil and vinegar is another example of a heterogeneous mixture. Its consistency is smooth, but oil and vinegar can't dissolve each other, which means that we will see droplets of oil and vinegar. Since we can tell that it contains these components, this is a heterogeneous mixture.

Answer:

Sample Response: A homogeneous mixture can only form when one of the substances can dissolve the other one. Oil and water cannot dissolve each other, so they must form a heterogeneous mixture with small particles of vinegar dispersed throughout the oil, yet not dissolved.

Answer:

Chemical

Explanation:

Answer:

C stays The same.

Is the answer.

Answer:

20N

Explanation:

Given parameters:

        Force(N)     Acceleration(m/s²)  

            10                   0.2

           ?                      0.4

Unknown:

The force applied when the acceleration is 0.4m/s²

Solution:

From newton's second law of motion;

 Force = mass x acceleration

 Since we are using the same box, let us find the mass of the box;

      Force  = mass x acceleration

         10 = mass x 0.2

            mass = [tex]\frac{10}{0.2}[/tex]  = 50kg

Now,

 The force in the second instance will be;

      Force  = 50 x 0.4  = 20N

Answer:

60N

Explanation:

The net force on the cabinet is 60N.

 Net force is that single force that will act like all other forces on a body. The direction of the force and magnitude is very important when resolving forces.

  Force applied by Mrs. Moran  = 30N

  Force applied by Mr. Moran = 30N

                Since they each stood on both sides and pushed, the net force will be 30N + 30N  = 60N

Answer: 0

Explanation: If they both pushed a force of 30N then it doesn’t add up but instead you subtract. so it’s 0. ur yw ;)

Answer:

Explain your answer. mg2+ would be the smaller ion this is because each ion has the same number of electrons however mg2+ has a greater number of protons and therefore is more charge dense and the outer electrons feel a greater pull from the nucleus.

Hope this helps, have a great day/night, and stay safe!

Answer:

Maybe false

Explanation:

.........

The smallest unit that combines chemically or physically to form molecules and compounds is called an atom. They are composed of electrons and protons and neutrons in the nucleus.

The correct answer is:

Option d. To achieve a more stable electron configuration for both atoms.

This can be explained as:

Therefore to achieve stable configuration atoms bond with other atoms.

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Answer:

Nano silver is woven into fabric to give it anti-bacterial properties.

Explanation:

Helps by fending off the bacteria that make those clothes smell after you sweat. Nano-titanium dioxide adds sun protection to clothing just as it does in sunscreen. The use of nanoparticles to achieve fresh-smelling clothes and UV protection may not be safe.

When it is in motion, i.e no longer stopped

Explanation:

If a ball is lifted to a certain height, it gains potential energy. If it is then dropped, the potential energy is converted into kinetic energy as it looses height but gains speed.

Answer:

water,minerals carbon dioxide, and oxygen

Explanation:

We answered it on my little brothers quiz, and we got a 100%!!!

Answer:

Air is composed of about 78% nitrogen, 21% oxygen, and 1% of other gasses like carbon dioxide

Explanation:

Brainly deleted my answer so I came back to answer this again :(

Answer:

0.8162 gramos de plomo por gramo de yodo

1.633 gramos de plomo por gramo de yodo

Explanation:

Asumiendo una base de 100 gramos para cada compuesto:

Primer compuesto:

Gramos plomo: 44.94g

Gramos de yodo: 100-44.94g = 55.06g

Así, la masa de plomo por gramos de yodo para el primer compuesto es:

44.94g plomo / 55.06g Yodo =

0.8162 gramos de plomo por gramo de yodo

Segundo compuesto:

Gramos plomo: 62.02g

Gramos de yodo: 100-62.02g = 37.98g

La masa de plomo por gramos de yodo para el segundo compuesto es:

62.02g plomo / 37.98g Yodo =

1.633 gramos de plomo por gramo de yodo

the element is nitrogen

5+2=7

Answer:

WHT55

Explanation:

i experianced this before

Answer:

Both can react to form acidic compunds. Both are brittle.

Explanation:

Answer:

ur really pretty :)

Explanation:

Answer:

false

Explanation:

Answer:

false

Explanation:

Answer:

It is 20. g HF

Explanation:

H2 + F2 ==> 2HF  ...  balanced equation

Since the question is asking us to find the mass of product formed, we will want to first convert the molecules of H2 into moles of H2 (we could do this at the end of the calculations, but it's just as easy to do it now).

moles of H2 present (using Avogadro's number):  

3.0x1023 molecules H2 x 1 mole H2/6.02x1023 molecules = 0.498 moles H2

From the balanced equation, we see that 1 mole H2 produces 2 moles HF.  Therefore, we can now find the theoretical mass of HF produced from 0.498 moles H2:

0.498 moles H2 x 2 moles HF/1 mol H2 = 0.996 moles HF formed.

The molar mass of HF = 20.01 g/mole, thus...

0.996 moles HF x 20.01 g/mole = 19.93 g HF = 20. g HF formed (to 2 significant figures)

Answer:

The hypothesis is that the new sauce used in hamburgers will be able to reduce the incidence of body gases in customers.

Explanation:

A hypothesis is an assumption about a specific topic that is being researched. In the case shown in the question above, Krusty Krab believes that the new sauce he wants to use in hamburgers is capable of reducing the amount of body gases created by the body. Krusty Krab wanted to do scientific research where he analyzed the efficiency of this new sauce, but he assumes that the new sauce is efficient in reducing the creation of these gases. This is a hypothesis.

Answer:

A

Explanation:

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Answer:

chloroplast

Explanation:

Answer:

1. Covalent Bond

2. Isomers

3. Molecular and Empirical Formula

4. The Structural Formula

5. Diatomic Molecules

1. Hydrogen and Tetraoxosulphate. There are 2 atoms of hydrogen and 4 atoms of tetraoxosulphate.

Explanation:

Sorry, I wrote all I know

Answer:the answer is C

Explanation: