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zzz [600]
3 years ago
13

Scientific knowledge results from the interaction of scientists who are investigating natural phenomena. Which of these BEST des

cribes how a scientific explanation becomes widely accepted?
Group of answer choices

DNA is not necessary for an organism to reproduce.

Organisms create their own DNA sequence that is not like their parents.

. DNA contains genes that hold specific traits for an organism.

A. DNA is an exact copy from parent to offspring.
Chemistry
1 answer:
seraphim [82]3 years ago
6 0

Answer:

5ywhxhghghghfhffgffgffg

Explanation:

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What are the products of a neutralization reaction?
vfiekz [6]
In an acid and base neutralization reaction, the products are salt and water.
3 0
3 years ago
Read 2 more answers
Match each term to its description. (3 points)
madreJ [45]

Answer:   Limiting reactant = 3  

                Theoretical Yield= 1

                  Excess reactant=2

Explanation:  The theoretical yield is the maximum possible mass of a product that can be made in a chemical reaction. It can be calculated from: the balanced chemical equation. the mass and relative formula mass of the limiting reactant , and. the relative formula mass of the product.

An excess reactant is a reactant present in an amount in excess of that required to combine with all of the limiting reactant. It follows that an excess reactant is one remaining in the reaction mixture once all the limiting reactant is consumed.

The limiting reagent is the reactant that is completely used up in a reaction, and thus determines when the reaction stops. From the reaction stoichiometry, the exact amount of reactant needed to react with another element can be calculated

3 0
3 years ago
Read 2 more answers
The equilibrium constant for the reaction 2NO2(g) N2O4(g) is Keq = . If a sample at equilibrium was found to contain 0.058 M NO2
Sladkaya [172]

Answer:

\boxed{3.6}

Explanation:

                  2NO₂ ⇌ N₂O₄

E/mol·L⁻¹:   0.058     0.012

K_{\text{eq}} = \dfrac{\text{[N$_{2}$O$_{4}$]}}{\text{[NO$_{2}$]$^{2}$}} = \dfrac{0.012}{0.058^{2}} = \mathbf{3.6} \\\\

\text{The $K_{\text{eq}}$ value would be $\boxed{\mathbf{3.6}}$}

7 0
3 years ago
Why are there 2 chloride ions for every 1 calcium in calcium chloride
tensa zangetsu [6.8K]

Answer:

See explanation

Explanation:

Calcium is divalent. This means that it donates two electrons during ionic bond formation. Since chlorine atom can only accept one electron during ionic bond formation, two chlorine atoms must accept the two electrons donated by calcium.

For this purpose, each time CaCl2 is formed, there must be two chlorine atoms for each calcium atom.

5 0
3 years ago
The three components essential for a fire are:
xz_007 [3.2K]

Hey there


The answer should be : Oxygen, fuel , heat


I hope that's help !

3 0
3 years ago
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