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
Nitella [24]
3 years ago
14

Observation and assessment are most effective when

Chemistry
1 answer:
Artist 52 [7]3 years ago
6 0
I think the answer is A. Hope that helped :)
You might be interested in
What is the product of the following chemical equation?
g100num [7]

Answer: carbon dioxide and water

Explanation:

C3H8 + 5O2 —> 3CO2 + 4H2O

6 0
3 years ago
In a chemical equation, the symbol that means "dissolved in water" is _____. (s) (l) (aq) (g)
Paraphin [41]
In a chemical equation, the symbol that means “dissolved in water” is (aq).
8 0
3 years ago
Galvanized nails are iron nails that have been plated with zinc to prevent rusting. The relevant reaction is
umka21 [38]

Answer:

50. 5mol

Explanation:

The mass of Zinc required = 3.30 kg = 3300 grams

The relation between moles and mass is:

moles=\frac{mass}{atomicmass}

Atomic mass of Zinc = 65.38g/mol

molesofZinc=\frac{3300}{65.38}

molesofzinc=50.47mol

The answer to three significant figures will be 50.5 mol

3 0
3 years ago
What is the point of previewing? a. to get the gist of the text you don’t have read the whole text c. to gather as much informat
Murljashka [212]

C. TO GATHER AS MUCH INFORMATION ON THE TEXT AS POSSIBLE SO YOU CAN BETTER UNDERSTAND THE TEXT WHEN YOU READ


7 0
3 years ago
What effect does supercritical mass have on a nuclear reaction?
Ksju [112]
Supercritical mass results to an increase in the rate of fission. There is a chain reaction that will occur. Nuclear fission or explosion used in atomic bombs relies on supercritical mass. An atom splits into two, with each splitting into two pairs and so on, releasing energy in each step.
3 0
4 years ago
Read 2 more answers
Other questions:
  • How would changing the proportions of substance in an alloy change its properties?
    14·1 answer
  • How many moles of AlCl3 are formed by 1.53 moles of CuCl2?
    7·1 answer
  • Determine the empirical formulas for the following compounds:
    9·1 answer
  • Only a professional scientist can benefit from scientific knowledge.<br><br> True<br><br> False
    6·1 answer
  • Jill formed ionic compounds using the index cards she combined sodium and zinc to form the compound na2zn is this a possible a i
    13·1 answer
  • a cube of iron (cp = 0.450 j/g•°c) with a mass of 55.8 g is heated from 25.0°c to 49.0°c. how much heat is required for this pro
    6·2 answers
  • Zinc put in concertrated sodium hydroxide
    12·1 answer
  • Which of the following ideas about the atom changed when new evidence was discovered?
    11·1 answer
  • What is the unit of measurement used to report mass
    6·2 answers
  • What are the formulas of the acids: <br>AsO4<br>CIO4 ( l )<br>S ( ll )<br>F ( l )<br>PO4 (lll)​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!