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
Zina [86]
3 years ago
7

Which of these requires accurate coefficients in a reaction?

Chemistry
1 answer:
aksik [14]3 years ago
6 0

Answer:

A: molar ratio

Molar ratios state the proportions of reactants and products that are used and formed in a chemical reaction.

You might be interested in
What are the measurements for standard temperature and pressure (stp)? kp?
Alex787 [66]
Standard Temperature and Pressure (STP) are 273.15 K (Kelvin) and 101.3 KPa (kilopascals).

You can substitute 1 ATM (atmosphere) for the kilopascal measurement. It is discouraged to use 0°C for the temp equivalent since negative temperature numbers can't be used in gas equations..

8 0
4 years ago
What is the function of the digestive system? why is it important to the body?
tangare [24]

The digestive system is made up of the gastrointestinal tract—also called the GI tract or digestive tract—and the liver, pancreas, and gallbladder. The GI tract is a series of hollow organs joined in a long, twisting tube from the mouth to the anus. The hollow organs that make up the GI tract are the mouth, esophagus, stomach, small intestine, large intestine, and anus. The liver, pancreas, and gallbladder are the solid organs of the digestive system.

The small intestine has three parts. The first part is called the duodenum. The jejunum is in the middle and the ileum is at the end. The large intestine includes the appendix, cecum, colon, and rectum. The appendix is a finger-shaped pouch attached to the cecum. The cecum is the first part of the large intestine. The colon is next. The rectum is the end of the large intestine.

Digestion is important because your body needs nutrients from food and drink to work properly and stay healthy. Proteins, fats, carbohydrates, vitamins NIH external link, minerals NIH external link, and water are nutrients. Your digestive system breaks nutrients into parts small enough for your body to absorb and use for energy, growth, and cell repair.

  • Proteins break into amino acids
  • Fats break into fatty acids and glycerol
  • Carbohydrates break into simple sugars

Each part of your digestive system helps to move food and liquid through your GI tract, break food and liquid into smaller parts, or both. Once foods are broken into small enough parts, your body can absorb and move the nutrients to where they are needed. Your large intestine absorbs water, and the waste products of digestion become stool. Nerves and hormones help control the digestive process.

7 0
3 years ago
Which of the following describes the relationship between acid strength and ka value for weak acids?
Leona [35]
I think the correct answer would be when ka increases, the acid strength increases. Ka is the product of hydronium ions and the [A-] ions  concentration over the acid concentration. Therefore, increasing the the Ka, the numerator in the definition would increase as well which correspondingly increase the strength of the acid.
8 0
4 years ago
This rock is made up of the mineral calcite and it formed from the remains of organisms that lived in water. What type of rock i
olchik [2.2K]

Answer:

sedimentary rock

Explanation:

Sedimentary rocks are formed from pre-existing rocks or pieces of once-living organisms. And as you said "it formed from the remains of organisms that lived in water". And that makes it a sedimentary rock.

Hope this helped!

Have a supercalifragilisticexpialidocious day!

7 0
3 years ago
Sulfur has a lower ionization energy than chlorine because 1. the effective nuclear charge of sulfur is less than that of chlori
Reptile [31]

Answer: the effective nuclear charge of sulfur is less than that of chlorine

Explanation:

Ionization Energy can be defined as the energy needed for the complete removal of valence electron.

Ionization Energy decreases steadily down the group because of the outer electrons becomes progressively separated from the nucleus, hence they are less tightly held.

Also, Ionization Energy increases from left to right across the period i.e formation of a cation becomes more difficult owing to increase in nuclear charge.

Therefore, the effective nuclear charge of sulfur is less than that of chlorine because Chlorine have a greater ionization energy.

8 0
3 years ago
Other questions:
  • How hot can the earth possibly get?
    14·1 answer
  • Which of the following amino acids contains a side chain that is polar and uncharged from pH 1-13?
    15·1 answer
  • In a solution, the solute is the substance present in the greatest amount. In a solution, the solute is the substance present in
    7·1 answer
  • Predict the product for PtCl4 + F2
    7·1 answer
  • Both cholesterol and oleic acid are lipids. What property do they have in common?
    14·1 answer
  • Balance the equation _C2H6 + _H2O = _CO2 + _H2O
    7·1 answer
  • 7.<br> How many grams are contained in 3.9 x 1023 sulfur atoms?<br> atoms → moles<br> grams<br> I
    7·1 answer
  • Which of the following is NOT an example of proxy data?
    11·1 answer
  • Which of the following are strong electrolytes in water?
    12·2 answers
  • How is a mixture such as a plate of pasta different from a mixture such as air
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!