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
Aleks04 [339]
3 years ago
15

Help me number 1 pleasw

Chemistry
2 answers:
elena55 [62]3 years ago
5 0
When something changes it is a chemical change which is nail rusting and when ever it is a state of phase than it is a physical change
Vaselesa [24]3 years ago
3 0
The answer to number 1 is D
You might be interested in
Most animals that live in soil live in the _______ layer.
labwork [276]

Answer:

Living organisms present in soil include archaea, bacteria, actinomycetes, fungi, algae, protozoa, and a wide variety of larger soil fauna, including springtails, mites, nematodes, earthworms, ants, insects that spend all or part of their life underground, and larger organisms such as burrowing rodents.

Explanation:

8 0
3 years ago
Read 2 more answers
How much potassium nitrate could be dissolved into 2L of water
miv72 [106K]

Answer:

About 110 g.

Your tool of choice here will be the solubility graph for potassium nitrate, KNO3, in water.

8 0
3 years ago
Read 2 more answers
A certain metal forms a soluble nitrate salt M(NO3)3. Suppose the left half cell of a galvanic cell apparatus is filled with a 3
DiKsa [7]

Answer:

1.The electrode on the right is positive

2. 0.058V

Explanation:

The above cell is a concentration cell.

A concentration cell is an electrolytic cell that is made of two half-cells with the same electrodes, but differs in concentrations of the solutions. A concentration cell functions by diluting the more concentrated solution and concentrating the more dilute solution, creating a voltage as the cell reaches an equilibrium thereby transferring the electrons from the cell with the lower concentration to the cell with the higher concentration.

In the above cell, electrons flow from the left electrode (less concentrated) to the right electrode (more concentrated). Therefore, the right electrode is the positive electrode (cathode).

Part 2: Please, see the attachment below for the calculations.

7 0
3 years ago
1.00-degree increase on the Celsius scale is equivalent to a 1.80-degree increase on the Fahrenheit scale. The temperature of a
castortr0y [4]
48.0°C×1.80 = 86.4°F
6 0
3 years ago
Use the name to write the formula for the following ionic compound: scandium (III) hydroxide
asambeis [7]

Answer:

.

Explanation:

.

6 0
2 years ago
Other questions:
  • Which element has the greatest electronegativity?
    8·1 answer
  • How were the elements in the first periodic table arranged?
    6·1 answer
  • Which of the following is a property of a pure substance?
    11·2 answers
  • Define the Coriolis effect and describe how it influences objects or fluids in each hemisphere
    12·2 answers
  • how much heat energy is needed to raise the temperature of 78.4g of aluminum from 19.4 degrees c to 98.6 degrees c.
    13·1 answer
  • Once again rocks and/or minerals
    9·2 answers
  • What type of change occurs as salt dissolves in water?
    10·1 answer
  • How many ions are in sodium bicarbonate
    10·2 answers
  • How many grams of silver bromide are produced when 505 grams of cobalt (III) bromide reacts completely in the following equation
    5·1 answer
  • What happens to the atoms during a chemical reaction
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!