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Alexus [3.1K]
3 years ago
13

The substances in a chemical reaction that are combined or separated to form new substances are the _______.

Chemistry
2 answers:
mihalych1998 [28]3 years ago
7 0
Precipitate reaction
katen-ka-za [31]3 years ago
6 0
Reactant/ Reagents and Products
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Are preferred because the results can be generalized to a larger population.
ryzh [129]

The most appropriate word among the group of answer choices to fill in the blank is: a. Random sample surveys.

Sampling can be defined as a process used to collect or select data (objects, observations, or individuals) from a larger statistical population using specific procedures.

The various types of sampling used by researchers includes the following;

  • Systematic sampling.
  • Convenience sampling.
  • Stratified sampling.
  • Cluster sampling.
  • Random sampling.

A random sample survey is also referred to as a simple random sample (SRS) and it can be defined as a sampling technique that involves randomly selecting a subset of a larger population. Also, any result obtained through the use of a random sample survey can be generalized and applied to a larger population.

In conclusion, scientists and researchers prefer random sample surveys because their results can be generalized to a larger population.

Find more information: brainly.com/question/17090308

5 0
3 years ago
What is the molarity of 2 mol of ki dissolved in 1 l water?
LiRa [457]

Hey There!:


number of moles = 2 moles KI


Volume = 1 L


Therefore:


M = n /V


M = 2 / 1


M = 2.0 mol/L


hope this helps!

5 0
3 years ago
How many mols is 1433.6 iron atoms
larisa86 [58]
<span>How many mols is 1433.6 iron atoms? my calculations are 2.380548514178884521</span>

7 0
3 years ago
N2 + 3H2 → 2NH3 How many moles of hydrogen are needed to react with 5 moles of nitrogen?​
Sonbull [250]

Answer:

6 MOLES

YES MATES! TWO MOLES OF N2 REQIURS 6 MOLES OF H2 GASE TO REACT COMPLETLY

4 0
3 years ago
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ow does the food chain start? A Plant life uses energy from the sun to make food. B Insects like grasshoppers eat plant life. C
Natali [406]
A is the answer! I’m pretty sure hopefully i helped!!
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3 years ago
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