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
Nataly_w [17]
3 years ago
8

What element is a gas with a mass number of 19?

Biology
1 answer:
Grace [21]3 years ago
8 0
Fluorine

Check out the periodic table. Exact mass number of Fluorine should appear as 18.99...
You might be interested in
What happens during the first two stages of cellular respiration?
Artemon [7]

Answer:

Cellular respiration uses energy in glucose to make ATP. Aerobic (“oxygen-using”) respiration occurs in three stages: glycolysis, the Krebs cycle, and electron transport. In glycolysis, glucose is split into two molecules of pyruvate. ... Life first evolved in the absence of oxygen, and glycolysis does not require oxygen.

Explanation:

Got it from Goog|e >.<

5 0
2 years ago
What is the function of the root cap
Elza [17]
The root cap protects the <span>apical meristem allows for primary growth in the </span>root<span>, which paves the way for lengthening of the plant as well as cell specialization. Hope this helps!! I got it from my book.</span>
3 0
2 years ago
How much of the Earth’s water is usable as a freshwater resource?
klemol [59]
<span>How much of the Earth’s water is usable as a freshwater resource?

3%</span>
4 0
3 years ago
Emily is given an object by her grandmother. She is told it is worth a lot of money. Emily thinks it is quite ugly on the outsid
Darya [45]

Answer:

Rock

Explanation:

Minerals are inorganic substances that occur naturally in nature and have a  

a definite chemical composition and a crystalline structure while rocks may consists of one or many minerals together along with some organic remains due to which it may not look shiny and crystalline from outside.  

Here, the two characteristics that enable the reader to identify the object given by grandmother to Emily as rock  are –  

a) Looks ugly on the outside (shows the presence of organic matter)

b) solid purple color with pretty crystals (crystalline structure inside)

8 0
3 years ago
24. Fill in the blanks. An enzyme is made up of _____. Enzymes can
Nikitich [7]
Enzymes are made of strings of amino acids chemically bonded to one another. These bonds give each enzyme a unique structure, which determines its function. They mostly break down carbohydrates and fats. Once a protein source reaches your stomach, hydrochloric acid and enzymes called proteases break it down into smaller chains of amino acids. Amino acids are joined together by peptides, which are broken by proteases.
6 0
2 years ago
Other questions:
  • When water freezes, it contracts or expands
    11·2 answers
  • Please help me it would mean a lot!
    15·1 answer
  • What vegetable do you get when you cross a dog with a baking ingredient
    15·2 answers
  • Salt water is classified as a
    10·2 answers
  • PLEASE HELP! Name one characteristic that all protists have in common that separates them from monerans.
    14·2 answers
  • How are gravity and air friction related to a raindrop’s terminal velocity?
    13·1 answer
  • The allele for cystic fibrosis is recessive. What does this mean?
    13·2 answers
  • Which macromolecule and function are correctly matched? *
    13·1 answer
  • 5 similarities between The Moon &amp; Mercury and justify your answers
    15·1 answer
  • Pls help again, brainlist!!!!!!!!!!!!!!!!!
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!