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
Ludmilka [50]
2 years ago
7

JWhat type of evidence is gathering information through your senses or using scientific tools?

Chemistry
1 answer:
Ad libitum [116K]2 years ago
8 0
Observations etc etc
You might be interested in
when writing numbers using scientific notation, numbers greater than one have..... exponents and numbers less than one have.....
Sav [38]
Positive and negative
8 0
3 years ago
Which best describes the transition from gas to liquid?
Keith_Richards [23]

a) the kinetic energy decreases as in a gas, the particles are widespread and move freely but in a liquid, their movement is more limited

3 0
3 years ago
An organism's _______ describes its genetic composition. An organism's _______ describes its appearance or observable characteri
Kisachek [45]
B. 
<span>genotype; phenotype

</span><span>Genetic variation determines inherited  differences between individuals . Our height or eye color are inherited from our parents, but our phenotype is also affected by environment such as the food we eat (diet), drugs we take, toxins surrounding us, climate, location, culture, physical accidents and lifestyle.</span>
7 0
3 years ago
Read 2 more answers
A procedure calls for the bromination of 12 mmol of trans‑cinnamic acid with 12 mmol of Br 2 in glacial acetic acid solvent. Sel
SashulF [63]

Answer: The yield of dibromide product will be approximately one‑half of the expected yield.

Explanation:

6 0
3 years ago
How many ions form when 39 grams of calcium fluoride are added to excess water? a. 0.50 mol b. 1.0 mol c. 1.5 mol d. 3.0 mol
agasfer [191]

Answer:

c. 1.5 mol

Explanation:

  • Firstly, we need to calculate the no, of moles of 39.0 grams of calcium fluoride.

n = mass / molar mass = (39.0 g) / (78.07 g/mol) = 0.499 mol ≅ 0.5 mol.

  • CaF₂ ionized in water as:

<em>CaF₂ → Ca⁺² + 2F⁻.</em>

Every 0.1 mole of CaF₂ is ionized to 3 ions (1 ion of Ca⁺² and 2 ions of F⁻).

<em>So, 0.5 mol of CaF₂ will contain (3 x 0.5 mol = 1.5 mol) of ions.</em>

Thus, the right choice is "c. 1.5 mol".

6 0
3 years ago
Read 2 more answers
Other questions:
  • 10. (2 points) What is the process by which a solute forms a solution in a solvent. A) calisthenics B) bumping C) dissolution D)
    14·1 answer
  • What property of metals allows them to be shaped into wires?
    10·1 answer
  • Zeke is on spring break. He lives in a cold climate, so he decides to drive to a warmer climate. Before he leaves for his vacati
    5·2 answers
  • What kind of questions CANNOT be answered by chemistry?
    9·1 answer
  • How many grams are in 1 mole of Pb3(PO4)4?
    7·2 answers
  • Select the reason cities tended to develop at the fall line on rivers.
    11·1 answer
  • (1) Some years ago, a crucial experimental error was made during the work-up of the reaction. Instead of adding the reaction mix
    7·1 answer
  • 6
    11·1 answer
  • Which observation most likely indicates that only a chemical change has taken place
    9·1 answer
  • What is metallic conductivity ?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!