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
Cerrena [4.2K]
3 years ago
8

Why are alkalis sometimes described as the opposite of acids?

Chemistry
1 answer:
zlopas [31]3 years ago
7 0

Answer: Because Alkalis are bases that can dissolve in water, which can also neutralize acid.

You might be interested in
Maya is playing the guitar. She drums the strings and the guitar procedures noise. maya is transforming____energy into _____ener
posledela
The strumming is mechanical energy
the notes heard is sound energy
so use D
6 0
3 years ago
An Expert, please answer this question!
Rudiy27

Answer:

C) The student and desk have to be in contact to apply the force.

Explanation:

I am pretty sure :)

3 0
2 years ago
Read 2 more answers
Calculate the number of moles<br> 41.0 g of Ca(NO3)2 <br> 1.48 g of Ca(OH)2 <br> 3.40 g of CaSO4
Lemur [1.5K]
First. moles is just a label for a number of things. just like a dozen = 12, a gross = 144, a mole = 6022 with another 20 zeros after the 2

next

moles = mass / molecular weight.

molecular weight = sum of atomic mass from the periodic table

atomic mass MnO2 = atomic mass Mn + 2 x atomic mass O
= 54.94 + 2 x 16 = 86.94 g/mole

so moles MnO2 = 98.0 grams / (86.94 g/mole) = 1.13 moles

notice that I only gave 3 digits? that because of sig figs read the link below if you don't understand....

mw C5H12 = 5 x 12 + 12 x 1 = 72 g/mole

so moles C5H12 = 12.0 g / 72.0 g/mole = 0.167 moles

mw XeF6 = 131.3+ 6 x 19.00 = 245.3

so moles XeF6 = 100 g / 245.3 g/mole = 0.4077 moles

I've also provided a link to a periodic table. if you need atomic weights click on any element and it will give you the
details.
8 0
3 years ago
How does our DNA cause us to have physical traits?
Cerrena [4.2K]

Answer:

jkjkjkjkjkjkjkjkjkjkjkjkjkjkjkjk

Explanation:

6 0
3 years ago
If a pork roast must absorb
Black_prince [1.1K]
Let us  assume propane was the fuel
C3H8(g) + 5O2(g) ---> 3CO2(g) + 4H2O(g) = 2217kJ
1 mole ofpropane produces 3 moles of CO2 
heat absorbed by pork = 0.11 x 2217
                                     = 243.87 kJ/mol
number of moles of propane = 1700kJ / 243.87 kJ/mol
                                              = 6.971 moles
1 mole of C3H8 = 3 moles ofCO2
6.971 moles of C3H8 = ?
3 x 6.971 = 20.913 moles of CO2
Convert to grams
mass = MW x mole
          = 44 x 20.913
          = 920.172g of CO2 emitted 
7 0
3 years ago
Other questions:
  • Is radium flammable?
    13·1 answer
  • Y do students have to go to school, I mean Do we have to learn we can learn at home ∞∵
    13·2 answers
  • Which of these best describes the difference between the formulas for nitrogen monoxide and nitrogen dioxide? Which of these bes
    9·1 answer
  • Select all of the following that are particles of atoms. protons neutrons electrons quarks Atoms are composed of particles calle
    13·2 answers
  • The total pressure inside a 1.62 cylinder kept at 35°C is 1.15 atm. If the volume of the cylinder drops to 0.74 L and the temper
    6·1 answer
  • What is the number of moles of solute in 250 mL of a 0.4 M solution?
    7·1 answer
  • When a drawing of a circle made in the center of a piece of paper with a black marker gets wet, the marker bleeds, and as the wa
    8·1 answer
  • What is the name of the following compound? Se5S6
    11·1 answer
  • Fill out blanks using the words: tiny, electrons (x2),shells, neutrons, protons(x2), nucleus, configuration
    8·1 answer
  • By what process does water vapor become a cloud?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!