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
Anuta_ua [19.1K]
2 years ago
5

Helpp pleasee.............​

Chemistry
2 answers:
natka813 [3]2 years ago
8 0
Yea the answer is Lithium and boron
velikii [3]2 years ago
5 0

Answer:

it's answer is lithium and boron.

You might be interested in
Which of the following is generally FALSE? Group of answer choices Elements in the same group have the same valence electron con
Whitepunk [10]

Answer: Option (c) is the correct answer.

Explanation:

Generally, when we move from top to bottom in a group then there occur increase in the number of electrons due to which there will also occur increase in the number of shells.

As atomic size is the distance between the nucleus and valence shell of an atom. Hence, more is the number of shells present in an atom more will be its atomic radius.

Thus, we can conclude that the statement atomic radius of elements in a group decreases as you go from top to bottom, is generally FALSE.

3 0
2 years ago
4
kondor19780726 [428]

Answer:

.156   M

Explanation:

diluting 25 to 100 cuts the M to 1/4 of the original

1/4 * .625 = .15625

8 0
2 years ago
7. Which of these is not matter?<br> a. a cloud<br> c. sunshine<br> b. your hair<br> d. the sun
PilotLPTM [1.2K]
Hair ????????????????!?????
3 0
2 years ago
Water _____.
Sergio039 [100]

Answer: is neither an acid nor a base

Explanation: Water is a universal solvent which means it can dissolve most of the substances in it.

Water has high thermal heat capacity , which means large heat is required to heat the water.

Water is not always pure as it gets contaminated by various pollutants present in the atmosphere such as gases, bacteria and suspended matter.

Water is an amphoteric substance which can act as both acid and base, thus can donate and acept [texH^+[/tex] ions.Thus it is neither an acid nor a base.

HCl+H_2O\rightarrow H_3O^++Cl^-

Here water is accepting a proton, thus it acts as base.

NH_3+H_2O\rightarrow NH_4^++OH^-

Here water is donating a proton, thus it acts as acid.




4 0
3 years ago
Natural vs. Synthetic
myrzilka [38]

Answer:

Natural chemicals are produced by nature without any human intervention. Synthetic chemicals are made by humans using methods different than those nature uses, and these chemical structures may or may not be found in nature. Stay safe .

8 0
3 years ago
Read 2 more answers
Other questions:
  • Help ASAP! I'm kind of stuck on what you are supposed to put for theoretical / predicted yield and what is the actual yield for
    8·1 answer
  • Silicon is in the third period on the periodic table. Which orbital levels do its electrons occupy?
    7·1 answer
  • How many moles of HNO3 will be produced 3 NO2+H2O=2HNO3+ NO
    11·1 answer
  • Why is sugar soluble in water while oil cannot form a solution?​
    13·2 answers
  • Name the acid which are not sour in taste​
    5·2 answers
  • If the male monster has a straight tail, what does his genotype have to be?
    9·1 answer
  • What is NOT a sign of chemical change?
    8·1 answer
  • Which process is used to separate soluble compounds from insoluble compounds?
    15·2 answers
  • Which beach will be most affected by wind erosion? Why ?
    15·1 answer
  • Describe the motion of a person NOT wearing a seat belt if the car stops suddenly
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!