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Taya2010 [7]
3 years ago
7

Which of the following is true?

Chemistry
2 answers:
tresset_1 [31]3 years ago
4 0

Answer:

B

Explanation:

The sun can be dangerous but it also helps our Earth in a lot of ways

ASHA 777 [7]3 years ago
4 0
B the sun is helpful for our planet but when out of the atmosphere the rays from the sun can be quite harmful
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What are the relative ion concentrations in an acid solution?
Veronika [31]
Answer is: more H⁺ ions than OH⁻ ions.
<span>An Arrhenius acid is a substance that dissociates in water to form hydrogen ions or protons. 
For example, hydrochloric acid dissociate in aqueous solution to form hydrogen ions (H</span>⁺) and chloride anion (Cl⁻):<span>
HCl(aq) → H</span>⁺(aq) + Cl⁻<span>(aq).
</span>

An Arrhenius base is a substance that dissociates in water to form hydroxide ions (OH⁻<span>). 
For example lithium hydroxide is an Arrhenius base:</span>

LiOH(aq) → Li⁺(aq) + OH⁻(aq).


4 0
3 years ago
Ethanoic acid and 1-butanol can react to produce water and a compound classified as an 1) aldehyde 2) amine 3) ester 4) halide
kvv77 [185]

Answer:

3) ester

Explanation:

Esterification is the process in which alkanol and alkanoic acids reacts in the presence of a catalyst and heat. The product is usually an ester(alkanoate) and water.

For the reaction between ethanoic acid and 1-butanol, the product is butylethanoate and water as shown below:

               CH₃COOH + C₄H₈OH → CH₃COOC₄H₈ + H₂O

4 0
3 years ago
Predict the products of the reaction below. that is, complete the right-hand side of the chemical equation. be sure your equatio
kkurt [141]
The equation is as follow,

<span>                                  HBr </span>₍aq₎  +  H₂O ₍l₎    →

Solution:
             HBr being strong acid with Ka value of 1.0 × 10⁹. When HBr is added to water, water acts as a base and HBr acts as a acid. Water picks the proton (H⁺) from HBr and converts into Conjugate acid (H₃O⁺) ahile HBr is converted into Conjugate Base (Br⁻) after loosing proton. The equation for this reaction is as follow,

                      HBr ₍aq₎  +  H₂O ₍l₎    →    H₃O⁺ ₍aq₎  +  Br⁻ ₍aq₎
8 0
3 years ago
Which statement describes a property of covalent compounds?
Marat540 [252]

They have a low boiling point because of weak intermolecular forces. They

Explanation:

Covalent compounds are compounds that are known to have weak intermolecular forces and hence low boiling point.

Covalent bonds are bond formed between two or more atoms having zero or very small electronegativity difference. Such bonds exists between molecules of non-metals.

Here are some properties of covalent bonds;

  • They are gases or volatile liquids or low melting point solids
  • Most of them are insoluble in polar solvents or water but they are generally soluble in non-polar organic solvents.
  • They are mainly non-conductors.

learn more:

Covalent compound brainly.com/question/3109255

Covalent bond brainly.com/question/6029316

#learnwithBrainly

3 0
3 years ago
What contains paired statements that can be used to identify orgainisms
S_A_V [24]

one thing can be used and that would be fungi


3 0
3 years ago
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