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
MArishka [77]
3 years ago
10

Which of the following BEST represents 3.0 moles of an element?

Chemistry
1 answer:
Umnica [9.8K]3 years ago
7 0

Answer:  27 grams of Be

Explanation:  Berylium has a molar mass of 9.0 grams/mole

(9.0 grams/mole)*(3 moles Be) = 27 grams Be

You might be interested in
Which is the best metal to use in an alloy to increase its electrical conductivity?
denpristay [2]

Answer:

Its Silver!

Explanation:

I took a quiz, and i got it right!

7 0
3 years ago
Why does the reaction proceed more quickly when the surface area is increased?
Gelneren [198K]
When particles collide with the surface of the solid.
3 0
2 years ago
What is the ph of a solution made by mixing 25.00 ml of 0.100 m hcl with 40.00 ml of 0.100 m koh? assume that the volumes of the
Digiron [165]
<span>Answer: The HCl and KOH will react until one or the other is gone. As you have a larger volume of an equal concentration of HCl, the KOH will go first. moles HCl = 0.04000 L * 0.100 M = 0.00400 moles moles KOH = 0.02500 L * 0.100 M = 0.00250 moles moles HCl left = 0.00400 - 0.00250 = 0.00150 moles Your total volume is now 65.00 mL, so the [HCl] = 0.00150 moles / 0.06500 L = 0.0231 M = [H+] pH = -log [H+] = -log (0.0231) = 1.64</span>
3 0
3 years ago
According to the law of conservation of mass, if five atoms of hydrogen are used
Blababa [14]

Answer:

it would be 07

mark  brainlyest

4 0
1 year ago
Fe + H2SO4 = Fe2(SO4)3 + H2
a_sh-v [17]
C (667) that’s the answer boiii
5 0
3 years ago
Other questions:
  • In synthesis reactions, there are always more _____________ than ________________.
    12·1 answer
  • What are two main types of sedimentary rocks
    10·2 answers
  • Which would increase the amount of dissolved oxygen in a pond
    8·1 answer
  • The ph of a solution containing 0.818 M acetic acid<br> (ka1.76*10-5) ans 0.172 M sodium acetate is?
    8·1 answer
  • True or False?
    10·1 answer
  • Ethyl chloride vapor decomposes by the first-order reaction C2H5Cl → C2H4 + HCl The activation energy is 249 kJ/mol and the freq
    15·1 answer
  • A 55.0 L sample of gas at 235 K exerts a pressure of 225 KPa. If its volume is decreased to 42.0 L and the temperature rises to
    6·1 answer
  • Chemistry, need answer ASAP!! 50 points and i'll mark brainliest if correct! ^w^
    10·1 answer
  • Balance the Following Equations: SiCl4 + H2O = SiO2 + HCl
    8·1 answer
  • CaC2 + 2H2O ⟶ C2H2 + Ca(OH)2<br><br> How many moles of water are needed to produce 56.8g C2H2?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!