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
evablogger [386]
3 years ago
10

SOMEONE PLEASE HELP WITH 7,8&9

Chemistry
1 answer:
professor190 [17]3 years ago
8 0
7.) 3
8.) i think it's 2
9.) 3
You might be interested in
What is a molarity a measurement
USPshnik [31]

Answer:

Molarity indicates the number of moles of solute per liter of solution and is one of the most common units used to measure the concentration of a solution.

Explanation:

8 0
4 years ago
Fast food and juice boxes are example of which of these?
ser-zykov [4K]

Answer:

habitat destruction I think

Explanation:

4 0
2 years ago
A certain metal M forms a soluble sulfate salt MSO, Suppose the left half cell of a galvanic cell apparatus is filled with a 3.0
dimaraw [331]

Explanation:

It is known that for high concentration of M^{2+}, reduction will take place. As, cathode has a positive charge and it will be placed on left hand side.

Now, E^{o}_{cell} = 0 and the general reaction equation is as follows.

         M^{2+} + M \rightarrow M + M^{2+}

                3.00 M        n = 2       30 mM

         E = 0 - \frac{0.0591}{2} log \frac{50 \times 10^{-3}}{1}

            = -\frac{0.0591}{2} log (5 \times 10^{-2})

            = 0.038 V

Therefore, we can conclude that voltage shown by the voltmeter is 0.038 V.

5 0
3 years ago
How many protons, neutrons, and electrons could an isotope of this atom contain?
Dmitry_Shevchenko [17]

Answer:

The atomic number on the Periodic Table identifies the number of protons in any atom of that element. Copper, atomic number 29, has 29 protons. Finding the atomic number of an element reveals the number of protons.

To find the number of neutrons in the atom, subtract the atomic number from the atomic mass.

8 0
3 years ago
Sailin' Steve likes to test the buoyancy of different objects. He threw a spherical object into a fluid that has a greater densi
Hunter-Best [27]
The spherical object will float and the square object will sink to the bottom of the fluid as it has greater density. :)
7 0
4 years ago
Other questions:
  • How can a gardener remedy soil that is overly acidic?
    13·1 answer
  • A sample of hydrated magnesium sulfate (MgSO4)
    12·1 answer
  • A4 kg object is being pulled to the east by a 6 N force. What is the object's<br> acceleration?
    6·1 answer
  • Which method is the first step when scientists communicate their scientific results?
    11·1 answer
  • 2 moles Na = ______ atoms Na. I need help to figure out the number of atoms in Avogadro's number
    9·2 answers
  • Se queman 87,0 g de butano con oxígeno produciéndose dióxido de carbono y agua. Calcular la masa de oxígeno necesaria y la masa
    15·1 answer
  • What is saponification​
    6·2 answers
  • Which particle model diagram represents a chemical change
    10·1 answer
  • You have learned about Isaac Newton, Galileo, Nicolas Copernicus and Leonardo da Vinci in this lesson. Choose one of their contr
    13·1 answer
  • How do i use endothermic change in a sentence?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!