The materials created from a chemical reaction are called

Answers

Answer 1

Answer:

Answer: The chemical species formed in a chemical reaction are products.

Explanation:

In a chemical equation, the chemical species are called as reactants or products.

Reactants are defined as the chemical species that react in the reaction and are written on the left side of the reaction arrow.

Products are defined as the chemical species that are produced in the reaction and are written on the right side of the reaction arrow.

For Example: Formation of water from hydrogen and oxygen gases, the equation follows:

$2H_2(g)+O_2(g)\rightarrow 2H_2O(l)$

The chemical species $H_2\text{ and }O_2$ are termed as reactants and $H_2O$ is termed as products.

Hence, the chemical species formed in a chemical reaction are products.

Answer 2

Answer: the answer would be products

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The sodium atom loses an electron to form a sodium ion (Na+). Which statement is correct with respect to its atomic radius?

Answers

The atomic number of sodium is 11. Sodium is a metal and it has the electronic configuration: 2, 8,1. This configuration implies that, the electrons in an atom of sodium are distributed into three different shells and the outermost shell has one electron in it. If sodium decide to give away the electron on its outermost shell, it will have 10 electrons left and those electrons will be distributed in only the first two shells and then it will be described as an ion. The third shell will not exist again because the electron there has been given away. Thus, the sodium ion is going to have a smaller atomic radius because its size has been reduced. This implies that the sodium ion will have a smaller radius than the sodium atom.

Its atomic radius increases because there is less electron shielding after the sodium loses one e-. Sodium is a nonmetal which means it forms an anion. Anions always increase from their original atomic radius

Sheela wants to make a computer model of a land ecosystem. Part of her model simulates the chemical processes of photosynthesis that involve the creation of sugars. Which of these chemical processes are these?A. the light-dependent reactions
B. the light-independent reactions
C. the dark reactions
D. the reactions in the mitochondria

Answers

The correct answer is A, the ligt-dependent reactions. These reactions are responsible for the production of glucose molecules, by the utilization of carbon dioxide, and water along with the sunlight. Glucose is then broken down during resiration process, for the production of ATP in mitochondria.

B. the light-independent reaction is the correct answer in Edgen

Which compound is soluble in water?(1) PbS (3) Na2S(2) BaS (4) Fe2S3

Answers

The compound Na2S or Sodium sulfide is soluble inwater. This compound is a water-soluble salt that give strong alkalinesolutions. When exposed to air or humidity this compound gives-off hydrogen sulfidethat smells almost the same as rotten eggs.

This chemical is commonly used in the pulp andpaper industry. Sodium sulfide compounds are usually used in chemicalphotography, textile bleaching, making dyes, and even detergents.

The other 3 compounds are non-soluble in water. Theircompositions are mostly metal in nature and require other process to transformthem into different compound forms.

Answer;

(3) Na2S

Explanation;

All sodium salts are soluble in water. Therefore, sodium sulfide will be soluble in water.
All sodium, potassium, and ammonium salts are soluble in water. The chlorides, bromides, and iodides of all metals except lead, silver, and mercury are also soluble in water.
The sulfides of all metals except barium, calcium, magnesium, sodium, potassium, and ammonium are insoluble in water.

Determine the number of atoms in 4.56x10-2g Na

Answers

Molar mass Na = 23 g/mol

23 g ------------- 6.02 x 10²³ atoms
4.56 x 10⁻² g ----- ? atoms

atoms = 4.56 x 10⁻² x ( 6.02 x 10²³ ) / 23

atoms = 2.74 x 10²² / 23

= 1.19 x 10²¹ atoms

hope this helps!

Which is true about covalent compounds?Have a high melting point

Conduct electricity when dissolved in water

Have a low boiling point

Are extremely hard

Answers

Covalent compounds have a low boiling point. All the other answers apply to ionic compounds.

Covalent compounds have a low boiling point.

16.H2O (water) and NaCl (salt) are _________ that are in salt water, which is a(n) __________. Water and salt contain the ____________ hydrogen, oxygen, sodium, and chlorine. Compounds; mixture; elements
Mixture; compounds; elements
Element; compounds; mixture
Compound; elements; compounds

12.The number of _____ determines which element it is.

electrons
protons
positrons
neutrons

Answers

#1...Mixture; compounds; elements
#2...Protons

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How much heat is absorbed during the reaction of 48.0 grams of O2 with excess nitrogen in the following reaction if ΔH = 68 kJ/mol N2?"

Compare gases with liquids and solids according to the kinetic molecular theory