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
likoan [24]
3 years ago
9

Help me. please help me.

Chemistry
1 answer:
igor_vitrenko [27]3 years ago
3 0
B- 90 grams bc 45 mL times 2 equals 90
You might be interested in
How many total moles of ions are released when the following sample dissolves completely in water? Enter your answer in scientif
Katena32 [7]

<u>Answer:</u> The number of moles of strontium bicarbonate is 7.5\times 10^{-9}mol

<u>Explanation:</u>

Formula units are defined as lowest whole number ratio of ions in an ionic compound. It is calculate by multiplying the number of moles by Avogadro's number which is 6.022\times 10^{23}

We are given:

Number of formula units of Sr(HCO_3)_2=4.55\times 10^{15}

As, 6.022\times 10^{23}  number of formula units are contained in 1 mole of a substance.

So, 4.55\times 10^{15} number of formula units will be contained in = \frac{1}{6.022\times 10^{23}}\times 4.55\times 10^{15}=7.5\times 10^{-9}mol of strontium bicarbonate.

Hence, the number of moles of strontium bicarbonate is 7.5\times 10^{-9}mol

5 0
3 years ago
If a sodium atom loses an electron, is the resulting sodium ion positively charged or negatively charged?
maxonik [38]
Positively charged and the sodium ion would be a cation
5 0
3 years ago
5. Inside the mouth, these cells are joined together in a sheet. Why are they scattered here?
anyanavicka [17]

Answer:

Inside the mouth, these cells are joined together in a sheet. Why are they scattered here? They are scattered here because we disrupted there original form by scrapping them off our mouths and smearing them on the slide.

Explanation:

5 0
3 years ago
You have three elements, A, B, and C, with the following electronegativity values:
DerKrebs [107]

#AB

Electronegativity difference=3.3-2.9=0.4.

  • It's a covalent bond.
  • Gaseous or solid substance.

#AC

Electronegativity difference=3.3-0.7=2.6

  • Its an ionic bond.
  • Solid substance.

#BC

Electronegativity difference=2.9-0.7=2.3

  • It's an ionic bond
  • Solid substance

6 0
2 years ago
PLEASE HELP!! Tell me the IUPAC name of the following compounds:
leonid [27]

The IUPAC rules are

a) Find out the longest chain of carbon in the given organic compound

b) We will name the longest chain.

c) We will identify the main functional group and will assign a suffix to the compound.

d) We will number the carbons in the longest chain selected so that the attached groups attain lowest numeral as substituent

e) We will name the side groups or chains.


4 0
3 years ago
Other questions:
  • Can swords shatter from cold temperatures
    13·1 answer
  • Which one is commonly found in Texas? A:Fossil Fuels or B:uranium
    7·2 answers
  • Which one of the following neutral salt?
    6·1 answer
  • How do vacuoles in the animal cell differ from those in the plant cell?
    14·2 answers
  • During the isothermal heat addition process of a Carnot cycle, 900 kJ of heat is added to the working fluid from a source at 400
    12·1 answer
  • What drives spontaneous reactions?
    6·2 answers
  • The reason that it is (mostly) correct to generalize that ionic bonds will form between a metal and a nonmetal is that _____.
    13·1 answer
  • 10-6 is much larger than 10-3
    6·1 answer
  • Can you show me the answer and explain?
    6·1 answer
  • Draw the lewis structure of chocl and then determine the ideal bonding angle(s) of the central atom.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!