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
anygoal [31]
3 years ago
11

Which of the following is represented by the number of significant figures in a quantity? A) estimation B) precision C) accuracy

D) scientific notation
Chemistry
1 answer:
enyata [817]3 years ago
4 0

Answer: the answer is B estimation

Explanation:

i just took a test

You might be interested in
Convert 7.9 x 10^22 atoms of Ca to grams
Vika [28.1K]

Answer:

Mass = 5.24 g

Explanation:

Given data:

Number of atoms of Ca = 7.9×10²² atoms

Mass of Ca = ?

Solution:

First of all we will calculate the number of moles by using Avogadro number.

1 mole contain 6.022×10²³ atoms

7.9×10²² atoms × 1 mol /6.022×10²³ atoms

1.31 ×10⁻¹ mol

0.131 mol

Mass of Ca:

Mass = number of moles × molar mass

Mass = 0.131 mol × 40 g/mol

Mass = 5.24 g

6 0
3 years ago
Several general characteristics of metabolic reactions or reaction pathways are listed below. sort them into the appropriate met
Kobotan [32]
Answers are:
Catabolism: 
- g<span>enerally exergonic (spontaneous): In this reactions energy is released.
- </span><span>convert NAD+ to NADH. Electrons and protons released in reactions are attached to NAD+.
- </span><span>generation of ATP. ATP is synthesis from ADP.
- </span><span>convert large compounds to smaller compounds. Foe example starch to monosaccaharides.
Anabolism:
</span><span>- convert NADPH to NADP+. Protons and electrons are used to make chemical bonds.
</span>- <span>convert small compounds to larger compounds.</span>
8 0
3 years ago
Read 2 more answers
Convert 16 inches to feet
MrRa [10]

There is 12 inches in 1 foot.

Divide 16 with 12 to get feet

16/12 = ~1.33 (rounded)

1.33 is your answer

hope this helps

5 0
4 years ago
Read 2 more answers
Which of the following structures are accessory structures of the digestive system?
professor190 [17]

the pancreas and the liver

7 0
3 years ago
Read 2 more answers
Of the major types of organic compounds found in the body, which type is used to make enzymes, to make structural molecules such
zhenek [66]

Answer:

Proteins.

Explanation:

Proteins (also called polypeptides) are large biological molecules which consists of one or more chains of amino acid. Proteins perform a series of functions which are catalysing metabolic reactions, DNA replication, providing structure to cells, transport molecules from one location to another within an organism etc.

Collagen consists of amino acids bound together to form a triple helix of elongated fibrils. It can be found in the skin, ligaments etc.

Enzymes are globular protein molecules which have the tertiary structure. They are generally rounded, "squashed" ball shape. Others include fibrous proteins which are long thin structures and are found in muscles and hair.

4 0
3 years ago
Other questions:
  • The compound AL2o3 is made of?
    5·2 answers
  • This picture depicts secondary succession in a Forest ecosystem.
    7·1 answer
  • What is the charge of the nucleus of a copper atom
    15·2 answers
  • Why does sublimation feel cold?
    11·1 answer
  • If the number of equally likely sample outcomes of a single ASAP! stage of an experiment is 4, what is the total number of eleme
    6·1 answer
  • sample of saline contains 45 ml of saline in 128 ml of water. What is the percent by volume of the solution?
    8·1 answer
  • A microbiologist is preparing a medium on which to culture
    6·2 answers
  • Na reação de óxido de alumínio com ácido sulfúrico forma-se sulfato de alumínio (equação abaixo). Levando em consideração que a
    14·1 answer
  • A sample of a certain isotope has an initial activity of 40,000 cpm. After 24.8 days, the activity is 2500 cpm. What is the half
    15·1 answer
  • The atomic number of neutrons in oxygen
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!