In a chemical change, the same atoms are recombined into a new substances,
True
Or False

Answers

Answer 1

Answer:

True. In a chemical change, the same atoms are recombined into a new substances,

What happens in a chemical change

In a chemical change, also known as a chemical reaction, the atoms of the reactants are rearranged and recombined to form new substances with different chemical properties.

While the atoms themselves are not created or destroyed, their arrangement and bonding patterns change, resulting in the formation of new molecules or compounds. This process involves breaking and forming chemical bonds, leading to the creation of different substances with distinct properties from the original reactants.

Learn more about chemical change

brainly.com/question/1222323

#SPJ3

Answer 2

Answer: Atoms from DIFFERENT elements can combine to make a new substance so I would say that one is false sorry if Iam wrong :( i think it’s right because it produces a new substance with different or new atoms

Related Questions

I Need Help With These.
which statement describes all chemical changes but not all physical changes a bubbles are produced b a new substance forms c phase changes occur D a color change occurs
A mothball, composed of naphthalene (C10H8), has a mass of 1.52g. How many naphthalene molecules does it contain?
Sulfur oxides Carbon monoxides Chlorofluorocarbons (CFCs)Nitrates are responsible for the hole in the ozone layer.
Highlight the basic points in Lewis and Langmuir theory of electrovalency

There are moles of carbon in 6.64 moles of CCl2F2

Answers

Answer:

6.64 moles of carbon.

Explanation:

Given data:

Number of moles of C = ?

Number of moles of CCl₂F₂ = 6.64 mol

Solution:

In one mole ofCCl₂F₂ there is one mole of carbon two moles of chlorine and two moles of fluorine are present.

In 6.6 moles of CCl₂F₂ :

Moles of carbon = 6.64 × 1 = 6.64 moles of carbon.

Moles of chlorine = 6.64× 2 = 13.28 moles of chlorine

Moles of fluorine = 6.64× 2 = 13.28 moles of fluorine

Answer: 6.64 moles

Explanation:

Number of moles of C = ?

number of moles of CCl₂F₂ = 6.64 mol

In one mole of CCl₂F₂ there is one mole of carbon two moles of chlorine and two moles of fluorine are present.

In 6.6 moles of CCl₂F₂ :

Moles of carbon = 6.64 × 1 = 6.64 moles of carbon.

Moles of chlorine = 6.64× 2 = 13.28 moles of chlorine

Moles of fluorine = 6.64× 2 = 13.28 moles of fluorine

What are some factors that might cause our percent yield to be greater than 100%? What are some factors that might cause it to be less than 100%? Make sure you discuss specific cases of how both might happen.

Answers

In the field of science, usually, the product of an experiment iscomputed ahead to understand if it reached a specific objective. It would reachgreater than 100% of percent yield if the factors include faster reaction rates;proper handling of the reactants, no outside contaminants, and the procedure ofthe experiment is followed smoothly. It would reach lesser than 100% percent yieldif the experiment is not followed, external factors such as contamination fromthe environment (wind, moisture, etc).

A 50 ml sample of calcium hydroxide solution required 19.50 ml of 0.1050N HCL titration. Calculate the amount of calcium hydroxide in the 50 sample?

Answers

The reaction of calcium hydroxide (Ca(OH)2) and hydrochloric acid (HCl) is:
Ca(OH)2 + 2HCl --> CaCl2 + 2H2O. So the amount of calcium hydroxide in the sample is ((19.50ml HCl)/1000) x 0.1050 mol/L
From the balanced equation above: (1 mol Ca(OH)2 / 2 mol HCl)
Calculating the amount of Ca(OH)2 in the 50ml sample, multiply with the molar mass:
((19.50ml HCl)/1000) x 0.1050 mol/L x (1 mol Ca(OH)2 / 2 mol HCl) x 74.039 g/mol

ovalent bonds are formed by which of the following? A. The energy transfer from one body to another B. The bonding of cations and anions C. Weak electrostatic attraction between charged areas of adjacent molecules D. The electrostatic attraction between oppositely charged ions E. The sharing of electrons between atoms

Answers

Answer:

E. THE SHARING OF ELECTRONS BETWEEN ATOMS

Explanation:

Covalent bonds are formed by sharing of electrons between the two reacting atoms so that a stable octet structure can be attained. The electron pair is called shared pair and each atom contributes an electron of the shared pair of electron.

Molecules are formed by covalent bonding and not ions. Examples of covalent bonds are hydrogen molecule (H2), Chlorine molecule (Cl2), water molecule (H2O).

Covalent compounds usually dissolve in non-polar solvents and not polar solvents (water), most covalent compounds do not conduct electricity.

Dative bonding is different from normal covalent bindings as the shared pair is donated by only one of the participating atom in coordinate covalent bonding.

NaOH + H2SO4 =NaOH + HNO3 =
Cu(OH)2 + HCl =
H2SO4 =
HNO3 =

Answers

$2NaOH+H_2SO_4\Rightarrow\ Na_2SO_4+2H_2O\n NaOH+HNO_3\Rightarrow\ NaNO_3+H_2O\n Cu(OH)_2+2HCl\Rightarrow\ CuCl_2+2H_2O\n Cu(OH)2+H_2SO_4\Rightarrow\ CuSO_4+2H_2O\n Cu(OH)_2+2HNO_3\Rightarrow\ Cu(NO_3)_2+2H_2O$

Which statement is true about ionic compounds?They are made up of many large molecules that are bonded together.
They are made up of atoms of only one type of element.
They are made up of particles that are arranged in a repeating pattern.
They are made up of a random ratio of elements that are bonded together.

Answers

I believe that the best answer among the choices provided by the question isThey are made up of particles that are arranged in a repeating pattern.
Hope my answer would be a great help for you. If you have more questions feel free to ask here at Brainly.

Ionic compounds are made up of particles that are arranged in a repeating pattern. Therefore, the correct option is option C.

A specific class of chemical compound known as an ionic compound is created when two or more atoms share electrons. It is made up of anions, which are negatively charged ions, and cations, which are positively charged ions. Most frequently, ionic compounds are created when a metal interacts with a non-metal. The non-metal atom receives one or more electrons to become an anion during this reaction, whereas the metal atom loses one or more electrons to become a cation. The development of a stable ionic compound happens as a result of the electrostatic forces that draw these oppositely charged ions to one another.

To know more about ionic compound, here:

brainly.com/question/30420333

#SPJ6

Other Questions

An atom in the ground state contains 8 valence electrons this atom is classified as a

Solutions of mercury (I) nitrate and potassium bromide are mixed

The movement of organisms into a range is called A. immigration. B. emigration. C. population shift. D. carrying capacity.

The group of molecules called nucleotides contain: A) phosphate groups. B) pyrimidines. C) purines. D) pentose (a 5-carbon sugar). E) all of the above.