1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
s2008m [1.1K]
3 years ago
5

Hi!!! Please help with six science questions!!!!! 60 points and brainliest! 

Chemistry
2 answers:
fomenos3 years ago
8 0
Hello!

I believe the answer to question 1 is: A. Acids.

2. Any chemical compound containing one or more groups, each comprising one atom each of oxygen and hydrogen bonded together and functioning as the negatively charged ion OH-.

3. Strong acids have a higher concentration of hydrogen ions than weak acids.

4. A weak base does not ionize fully in an aqueous solution. For example, NaOH is a stronger base than diethylamine because of the degree in ionization in waer to produce OH- ion.

5. Any substance with a pH value between 0 up to 7 is considered acidic, whereas a pH value of 7 to 14 is a base.

6. The chemical formula for water is usually written as H2O, but another way to consider it is HOH, where a positively charged hydrogen ion H is bonded to a negatively charged hydroxide ion H. This means water has properties of both an acid and a base, where the properties essentially cancel each other out.

I hope you found this helpful! c:
Shkiper50 [21]3 years ago
3 0
1. A                       
2. base                          
3. strong ones have more h30 weak ones have more OH
4. strong ones have more OH weak ones have more H30
5. <span>One of the main differences between acids and bases is that acids have a pH that is less than 7 and bases have a pH that is greater than 7. When dissolved in water, acids are substances that will cause the concentration of hydrogen ions (H+) to increase. Bases, when dissolved in water, will instead cause the number of hydroxide ions (OH-) to increase.6.Idk </span>


You might be interested in
Can someone help me pls will mark Brainly and 10+ points
bixtya [17]

Answer:

Hope this helps :)

Explanation:

1. A physical property is a characteristic of matter that is not associated with a change in its chemical composition.

2. Matter is everything around you. Atoms and compounds are all made of very small parts of matter.

3. Solid, liquid and, gas

4. False

5. Our weight on moon is less than it would be on Earth due to a difference of the strength of gravity on the moon.

6. Physical changes only change the appearance of a substance, not its chemical composition. Chemical changes cause a substance to change into an entirely substance with a new chemical formula. Chemical changes are also known as chemical reactions.

6 0
3 years ago
Give the number of lone pairs around the central atom and the molecular geometry of XeF4.A)0 lone pairs, tetrahedralB)1 lone pai
vovangra [49]

Answer: 2 lone pairs, square planar

Explanation:

Using the VSEPR ( Valence Shell Electron Pair Repulsion)Theory

To calculate the number of lone pairs electron can be done using the formula;

Number of electrons = ½ (V+N-C+A)

V mean valency of the central atom

N means number of monovalent bonding atoms

C means charge on cation

A means charges on anion

Therefore, to calculate the number of lone pair electron C=A=0;

Number of electrons = ½ (8+4) = 12/2 = 6

Number of bonding pair = 4

Number of lone pairs of electron = 6-4 = 2

The hybridrization of the compound is sp3d2 because the number of electrons around the central atom is 6.

The geometry of the compound is square planar and this is because of the repulsion between the bonding pair of electrons and lone pair of electrons which causes the lone pair of electrons to lie in a perpendicular plane in order to acquire stability.

4 0
3 years ago
What amount of heat is required to raise the temperature of 350 grams of copper to cause a 25°C change? The specific heat of cop
jarptica [38.1K]
The heat required to raise the temperature to a specific temperature change of a sample is related to the specific heat capacity of the substance.  In this case, the heat can be calculated through mCpΔT = 350 g * 0.39 J/g C *25 C. This is equal to 3412. 5 Joules. Closest answer is C.
4 0
4 years ago
Read 2 more answers
when u walk your dog ur using energy from the sunlight to power this activity explain (ANSWER PLESSSSSSSSSSSSSSZZZ)
wariber [46]

Answer:

When you walk your dog, you are using energy from the sunlight to power the activity. Explain. The energy you use is transferred from glucose, which got it directly from sunlight.

Explanation:

4 0
3 years ago
For the reaction 2KClO3 - 2KCI+ 302 how many moles of potassium chlorate are
Zarrin [17]

Answer:

the answer will be Oa. 2.26

3 0
3 years ago
Other questions:
  • You are given an aqueous solution of NaCl. The simplest method for the separation of NaCl from the solution is
    13·1 answer
  • What is a supersaturated solution?
    13·1 answer
  • 1. The underlined portion of the chemical formula above is the _____ and it represents ____________________.
    15·2 answers
  • The illumination of an object by a light source is directly proportional to the strength of the source and inversely proportiona
    7·1 answer
  • How people relate to one another and influence each other’s behavior​
    15·1 answer
  • State one use of ammonia in laundry<br>​
    7·1 answer
  • When dissolved substances are spread evenly throughout a mixture it is called a
    7·2 answers
  • What is Keystone XL pipeline?
    7·1 answer
  • Which animal can leave its eggs to hatch and does not need to take care of the infants?
    11·2 answers
  • A pump separates out Argon atoms from all other atoms in air. If a bottle contains 8.34 x 10^22 atoms of argon what is the mass
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!