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
s2008m [1.1K]
3 years ago
13

What does the number on the top left of the symbol show?

Chemistry
2 answers:
Ad libitum [116K]3 years ago
5 0

Answer: Exponent

Explanation:

For example

2^2 means 2x2

kkurt [141]3 years ago
3 0

Answer:

Atomic mass

Explanation:

You might be interested in
3) In the Hydrolysis of Disaccharides and Polysaccharides portion of the lab, starch should give one positive iodine test and on
AfilCa [17]

Answer: potassium iodide is the basic test for starch,and the positive test is blue-black coloration, any other test substance which is not starch will give a negative results.

Explanation:

Starch is an example of  polysaccharide  and since the standard test for it is potassium iodide solution, it gives a positive test.

Diasaccharides e.g maltose are reducing sugars.their standard test is BENEDICT test .

Therefore, in the hydrolysis;  starch should give a positve test, while Diasaccharides should give negative rest.

3 0
3 years ago
A company is developing a new type of airplane that can take off like a helicopter. Before they begin manufacturing the airplane
Black_prince [1.1K]

C, to make sure the design works as expected.

A prototype is first, typical model of the said product. Hope this helps!

6 0
3 years ago
Read 2 more answers
Write the three factors that affect surface ocean currents
yan [13]
<span>global wind patterns, rotation of the earth, shape of ocean basins.</span>
8 0
3 years ago
Which principal energy level of an atom contains an electron with the lowest energy?
Ad libitum [116K]
The answer is a.n=1 because it makes sence
4 0
3 years ago
Read 2 more answers
Mole are in 5.1 grams of beryllium ?
chubhunter [2.5K]
5.1/9.01 ≈ 0.566 moles
7 0
3 years ago
Other questions:
  • What is the atomic number of an element that has 43 protons and 50 neutrons?
    9·1 answer
  • Which of the following has the most energy?
    7·1 answer
  • A blank cell has half the chromosomes of a blank cell
    8·1 answer
  • 2 What do you notice about the location of the elements in each family?​
    10·1 answer
  • Explain some of the benefits and problem associated with the pesticide DDT.
    15·1 answer
  • 3. Crystalline structural unit of barium metal is a body-centered cubic cell. The edge length of the unit cell is 5.02x10-8 cm.
    11·1 answer
  • 1.Which is the largest atom in Group 1?
    13·1 answer
  • You weigh out 0.1183 g of a complex salt to analyze for the percentage of cyanide ion in your complex salt. After dissolving the
    5·1 answer
  • The binding energy of electrons in a metal is 193 kJ/mol. Determine the threshold frequency for this metal.
    11·1 answer
  • So i have this question for science.- What is the element with the atomic number 7. Thank you.
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!