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
pochemuha
3 years ago
14

Identify each of these substances as acidic, basic, or neutral. pure water, pH = 7.0 lake water, pH = 6.5 baking soda solution,

pH = 9 soapy water, pH = 12
Chemistry
2 answers:
Alex_Xolod [135]3 years ago
5 0

Answer:

pure water, pH = 7.0 (Neutral)

lake water, pH = 6.5 (Acidic)

baking soda solution, pH = 9 (Alkaline)

soapy water, pH = 12 (Alkaline)

Explanation:

The degree of acidicity or alkalinity of a solution can be determined on a pH meter. A pH below 7 is acidic; a pH of 7 is neutral; a pH value of above 7 is alkaline.

Elan Coil [88]3 years ago
4 0

Answer:

Explanation:

NEUTRAL pure water, pH = 7.0

ACIDIC lake water, pH = 6.5

BASIC baking soda solution, pH = 9

BASIC soapy water, pH = 12

You might be interested in
If 211 mL of water is added to 5.00 mL of 3.24 M NaCl solution,
Softa [21]

Answer:

0.075M

Explanation:

-The concentration of a solution is defined as the mass of the solute divided by the volume of the solution:

Concentration=\frac{Mass \ Solute}{Volume \ of \ Solution}

-We the solve the molarity problem as follows:

M_1V_1=M_2V_2\\\\V_2=V_1+211=211+5=216mL\\\\\therefore M_2=\frac{M_1V_1}{V_2}\\\\=\frac{3.24\times 5}{216}\\\\\\=0.075\ M

Hence, the concentration of the dilute solution is 0.075M

6 0
4 years ago
Which flowers are prettier, daisies or roses?
zhenek [66]
Overall, it depends on your opinion. Some people think roses are prettier than daisies, and daisies are prettier than roses.

Roses are the definitive symbol for love and appreciation, while daisies are a symbol of Virgin Mary representing her chastity, grace, and purity. Daisies represent beauty and patience as well.
5 0
3 years ago
How many moles are in 23.8 g of sulfur dioxide
Yuki888 [10]

Answer:

0.371

Explanation:

number of moles = mass / Ar

= 23.8g / 32.1 + (16.0 × 2)

= 0.37129485179 = 0.371 (3 s.f).

hope it helps :)

4 0
2 years ago
So I am lost and I don't know how what any of those conversion factor things are and I'm wondering how to do #2,3, and 4. (I did
dalvyx [7]

Explanation:

#2.

A centigram is 1/100 of a gram, so that means a gram equals 100 centigrams.

Therefore you multiply 72.4 grams by 100/1 (or just 100), and get 7240 cg.

You did that one right but put the wrong unit in the answer. It is is cg ( centigrams).

#3.

1 liter is equal to 1000 milliliters, and I kiloliter is equal to 1000 liters. So one kiloliter is 1000*1000 milliliters or 1,000,000 milliliters.

The conversion factor would be

1/1000000

#4.

1 gigabyte is equal to 10^9 bytes.

I byte is equal to 10^9 bytes.

So 1 gigabyte is 10^9 * 10^9 nanobytes, or 10^18.

The conversion factor would be (1*10^18)/1.

6 0
3 years ago
If the temperature of gas is held constant describe the relationship between a gas volume of a gas pressure?
love history [14]
This law states that the volume and temperature of a gas have a direct relationship: As temperature increases, volume increases, when pressure is held constant. Heating a gas increases the kinetic energy of the particles, causing the gas to expand.
6 0
4 years ago
Other questions:
  • Copper has a density of 8.920 g/cm3. What mass of copper will occupy 45cm3? What volume of copper will have a mass of 1.0 kg?
    8·1 answer
  • What is the molarity of silver ion in the final solution
    7·1 answer
  • Indicate the coordination number and oxidation number of the metal in:
    5·1 answer
  • 14. A neutron has a charge of<br> (1) +1<br> (2) +2<br> (3) O<br> (4) -1
    7·2 answers
  • If the strength of the magnetic field at A is 32 units, the strength of the magnetic field at B is _____.
    11·2 answers
  • NEED HELP ASAP!!! How many moles are in each of the following? Show your work.
    11·1 answer
  • A chemistry student conducted several different procedures. Which of the following procedures best demonstrates the law of conse
    14·1 answer
  • BRAINIEST IF ANSWERED which of the following is a molecule ( A.HCl B.HK C.MgCl2 D.Kl)
    14·1 answer
  • 5. The Rf of ibuprofen was found to be 0.32 when t-butyl methyl ether was used as the development solvent. What effect would the
    6·1 answer
  • Please help me on this question plizzźzz
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!