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
Anna35 [415]
3 years ago
13

What causes magnetic force?

Chemistry
1 answer:
Len [333]3 years ago
3 0

Answer:

D

Explanation:

You might be interested in
Mrs. Marlow's class is conducting an investigation of a mixture of sand, iron filings, and salt. They were told that they must s
aliina [53]

A mixture can be separated by looking at the physical properties of the components of the mixture.

Since salt is soluble in water, it can be added to the mixture to dissolve the salt.

The bar magnet is now introduced in order to remove the iron filings since they are attracted by a magnet.

The solution is filtered to separate the sand from the salt solution.

Lastly, the salt solution is heated to dryness to drive away the water and obtain the solid salt.

Hence the mixture has been separated into its components using their individual physical properties. Option A is the correct answer.

Learn more: brainly.com/question/12160179

8 0
3 years ago
How much heat is needed to raise the temperature of 2g of glass from 20°C to 30°C?
lakkis [162]

Answer:

‏‏‎ ‎     ‏‏‎ ‎

Explanation:

 

6 0
3 years ago
2. Nitric oxide contains 46.66% nitrogen and 53.34% oxygen. Water contains 11.21% hydrogen and 88.79% oxygen. Ammonia contains 1
Mrrafil [7]

Answer:

The law of reciprocal proportions states that if two elements react individually with a given weight of a third element, the ratio of the masses with which they combine with the third element are either the same or a simple multiple of the ratio of the masses with which they combine with each other

The compounds formed includes;

1) Nitric oxide, NO

Nitrogen = 46.66% × 30.01 = 14

Oxygen = 53.34% × 30.01 = 16

2) Water, H₂O

Hydrogen = 11.21% × 18.01528 = 2

Oxygen = 88.79% × 18.01528 ≈ 16

3) Ammonia, NH₃

Hydrogen = 17.78% × 17.031 ≈ 3

Nitrogen = 82.22% × 17.031 ≈ 14

The ratio of nitrogen to oxygen in nitric oxide = 14:16 = 7:8

The ratio of nitrogen to hydrogen in ammonia = 14:3

The ratio in which hydrogen and oxygen combine with nitrogen = 3/16

The ratio of hydrogen and oxygen combine with each other in water = 2/16

Therefore, the ratio with which hydrogen and oxygen combine with nitrogen, is (2/3) times the ratio with which they combine with each other, which verifies the law of reciprocal proportions

Explanation:

4 0
4 years ago
  reactant → product   If there are 4 grams of reactant, how many grams of product are produced by the chemical reaction? A)  0
m_a_m_a [10]

Answer: Option c is correct.

Explanation:

According to the law of conservation of mass or matter for a chemical reaction states that matter can neither be created nor be destroyed. It can simply be transformed from one form to another.

Therefore, if there are 4 grams of reactant then there will be production of 4 grams of product.

Thus, it is concluded that option c that is 4 grams is the correct answer.

6 0
3 years ago
Read 2 more answers
Determine the [H+], [OH-], pH, and pOH for <br><br> 0.045 M HBr
elena-s [515]

Answer:

The answer to your question is below

Explanation:

Data

[HBr] = 0.045 M

[H⁺] = ?

[OH⁻] = ?

pH = ?

pOH = ?

Process

1.- Determine the [H⁺]

The [H⁺] is equal to the [HBr] then, [H⁺] = 0.045 M

2.- Determine the pH

pH = -log[H⁺]

-Substitution

pH = -log[0.045]

-Result

pH = 1.35

3.- Determine the pOH

Formula

pH + pOH = 14

-Solve for pOH

pOH = 14 - pH

-Substitution

pOH = 14 - 1.35

-Result

pOH = 12.65

4.- Determine the [OH⁻]

pOH = -log[OH⁻]

-Solve for [OH⁻]

[OH⁻] = antilog(-pOH)

-Substitution

[OH⁻] = antilog (-12.65)

-Result

[OH⁻] = 2.22 x 10⁻¹³

5 0
3 years ago
Other questions:
  • An acidic solution has a ph value of
    8·2 answers
  • Which condition is indicated by nervous tension, mood swings, headaches, bloating, and irritability?
    13·1 answer
  • The energy exchange with the environment during a chemical reaction is called the heat of reaction.
    14·1 answer
  • What is the percent composition of calcium (Ca) in CaO?
    7·2 answers
  • A solution in a dish contains 4.0 grams of salt dissolved in 100 grams of water. If 50 grams of the water evaporates, this is ev
    6·1 answer
  • 1. Alginate is
    11·1 answer
  • 5. Para la siguiente reacción: KClO3 (s) KCl(s) + O2
    11·1 answer
  • All these words are associated with Nuclear Fusion except? 1. collide 2. nuclei 3. gravity 4. nucleus​
    10·2 answers
  • Someone help me pls will make you as brain
    8·2 answers
  • Hows ur guys day??????????????????????????????????????????????????????????????????????????
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!