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
kiruha [24]
3 years ago
6

What does the illustrated symbol on the element key mean?

Chemistry
1 answer:
Sveta_85 [38]3 years ago
4 0

Answer: Each element has a symbol,one or two letters that represent the element much as your initials represent you. The symbol of an element represents one atom of that element. For 14 of the elements, the symbol consists of one letter.

Explanation:

You might be interested in
7th grade science , please don’t get the answer from the internet :(
Liula [17]

Answer:

See the answer below

Explanation:

1. Organisms produce energy for cells by chemically breaking down and unlocking the energy locked-up within food materials in a process known as cellular respiration. The unlocked energy is then utilized for the cell's metabolic activities.

2. Cellular respiration can be aerobic or anaerobic.

Aerobic respiration involves the breakdown of carbohydrates in the presence of oxygen to yield energy in the form of ATP while carbon dioxide and water are produced as by-products.

        C_6H_1_2O_6 + 6O_2 --> 6CO_2 + 6H_2O + ATP

Anaerobic respiration involves the breakdown of carbohydrates in the absence of oxygen to produce ATP and lactic acid as a by-product. The lactic acid is later oxidized to carbon dioxide and water to prevent it from building up.

       C_6H_1_2O_6 -> 2C_3H_6O_3 + ATP

3. Photosynthesis and cellular respiration are both considered metabolic processes that take place in living organisms. However, photosynthesis is peculiar only to green plants and some algae while respiration is common to all living organisms. While photosynthesis is anabolic, that is, it involves the building up of materials; respiration is said to be catabolic because it involves the breaking down of materials.

During photosynthesis, inorganic products are utilized to produce carbohydrates for plants with oxygen gas released as a by-product according to the following equation:

       6CO_2 + 6H_2O --> C_6H_1_2O_6 + 6O_2

During respiration, the food taken by living organisms is broken down to unlock the energy in it for metabolic activities according to the following equation:

     C_6H_1_2O_6 + 6O_2 --> 6CO_2 + 6H_2O + ATP

7 0
2 years ago
A horse was 6,200 meters north of a barn. For 22.5 minutes, the horse ran toward the barn at 152 meters per minute. In that time
lutik1710 [3]

3420‬m

Explanation:

Given parameters:

Length of path = 6200m

time taken for the horse to run = 22.5min

speed = 152meters/minute

Unknown:

Distance run by the horse = ?

Solution:

Speed is the rate of change of distance with time.

   Speed       =    \frac{distance}{time}

    Distance = speed x time

 

     Distance = 152 x 22.5 = 3420‬m

learn more:

Speed          brainly.com/question/5424148

#learnwithBrainly

6 0
3 years ago
What method of heat transfer occurs when your skin feels hot outside on a sunny, summer day?
Stolb23 [73]

Answer:

i checked it again it's B

Explanation:

radiation sorry

4 0
2 years ago
Read 2 more answers
Which is a pure substance??
sveta [45]
The answer is A. Table salt is a pure substance.
4 0
3 years ago
Read 2 more answers
What is the half-life of a 12 g sample of radioisotope that decayed to 6 g in 28
Charra [1.4K]

Answer:

A. 28 years

Explanation:

Applying,

R = R'(2ᵃ/ⁿ).............. Equation 1

Where R = Original sample, R' = Sample left after decay, a = Total time taken to decay, n = half life.

From the question,

Given: R = 12 g, R' = 6 g, a = 28 years.

Substitute into equation 1 and solve for n

12 = 6(2²⁸/ⁿ)

12/6 = 2²⁸/ⁿ

2²⁸/ⁿ = 2

Equation the base,

28/n = 1

n = 28 years.

Hence the half-life is 28 years

4 0
3 years ago
Other questions:
  • True or False: A chemical formula is a representation of the smallest unit of a compound
    13·2 answers
  • Why don’t people eat things with very high levels of cellulose?
    8·1 answer
  • An SO2 sample occupies a volume of 60 ml at 318 K. At what temperature will the gas occupy a volume of 180 ml?
    10·1 answer
  • 3. What type of reaction is this?<br> Li +<br> H2O -&gt; H2 + LiOH
    11·1 answer
  • HELP!!! ASAP!!!! WILL MARK BRAINLIEST!!!!
    8·1 answer
  • Which 2 characteristics must and object have in order to be considered matter?
    6·1 answer
  • What is the molality of a solution containing 15 g NaCl dissolved in 50 g of water
    8·2 answers
  • n-Butane fuel (C4H10) is burned with the stoichiometric amount of air. Determine the mass fraction of each product. Also, calcul
    7·1 answer
  • What's the major difference between carbon and other group IV elements, excluding allotropy​
    6·1 answer
  • Who created the periodic table?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!