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Butoxors [25]
3 years ago
5

which statement best describes the equation caco3 2hcl → cacl2 co2 h2o? caco3 is a reactant; it is present before the reaction o

ccurs. cacl2 is a reactant; it is present before the reaction occurs. co2 is a reactant because it is most likely a gas. h2o is a reactant because it is most likely a liquid.
Chemistry
2 answers:
LenKa [72]3 years ago
8 0
The correct answer among the choices given is the first option. The statement that best describes the reaction given is that calcium chloride or CaCO3 is a reactant. Additionally, hydrochloric acid is a reactant while the compounds on the right side of the reaction are the products.
fomenos3 years ago
7 0

Answer: CaCO_3 is a reactant; it is present before the reaction occurs.

Explanation:

In a chemical reaction the chemical formulas written before the arrow are described as reactants as they react together to form products which are written after the arrow.

CaCO_3 + 2HCl \rightarrow CaCl_2 + CO_2 + H_2O

Thus CaCO_3 and HCl are reactants here whereas CO_2, CaCl_2 and H_2O are products.

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Answer:

The answer is IONIC BOND

Explanation:

Steroidogenic acute regulatory, (StAR) protein is a type of globular protein, which allows it act as an active catalyst on substrates. Because the substrates on which enzymes act usually have higher molecular weights of several hundred as compared to the enzymes, only a fraction of the enzyme's surface is in contact with the substrate. This region of contact called the <em>active site</em>, is as a result of the protein folding itself into a tertiary structure.

Once the correct substrate has bound at the active site of the enzyme, an enzyme-substrate complex is created. The substrate is usually held in the complex by combinations of electrical attraction, hydrophobic repulsion, or hydrogen bonding between and from the amino acid; the strongest of which is the ionic/electrostatic bonding due to larger amount of ionic "R" groups in the protein structure.

So whilst all these inter-molecular interactions are possible, the strongest would be <u>ionic bond.</u>

4 0
3 years ago
Hydrochloric acid (HCI) is created by a chemical reaction between hydrogen (H) and chlorine (CI). Which substance is
Mashutka [201]

The reaction and product is

H2+Cl2 = 2HCl

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3 years ago
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elena55 [62]

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Explanation:

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Which of the following statement is not a property of ionic compounds?
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Explanation:

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