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
Luden [163]
3 years ago
7

The study of heat and heat changes is called:

Chemistry
1 answer:
Zolol [24]3 years ago
3 0
The study of heat and heat changes is called thermal energy. 
You might be interested in
You are provided with a compound fertilizer, 40-15-10.Calculate the quantity of fertilizer to add to a one hectare field supply
victus00 [196]

Answer:

a. 300 kg of Fertilizer

b. 225 kg of fertilizer

c.400 Kg of fertilizer

d.600 Kg of fertilizer

Explanation:

The percentage composition ratio of Nitrogen, Phosphorus and Potassium bag of the given fertilizer is 40:15:10.

The percentages can be expressed as fractions as follows:

For nitrogen; 40/100 = 0.4

For phosphorus; 15/100 = 0.15

For potassium; 10/100 = 0.1

To find the quantity of fertilizer required to add to a hectare to supply the given amount of nutrients, the amount to be provided is divided by the percentage or fractional compostion of each nutrient.

Quantity of fertilizer required to add to a hectare to supply;

a. Nitrogen at 120 kg/ha = 120/0.4 = 300 Kg of fertilizer

b.. Nitrogen at 90 Kg/ha = 90/0.4 = 225 Kg of fertilizer

c. Phosphorus at  60 kg/ha = 60/0.15 = 400 Kg of fertilizer

d. Potassium at 60 kg/ha = 60/0.1 = 600 Kg of fertilizer

5 0
3 years ago
What are some of the ways that people can Reduce their use of fossil fuels?
alukav5142 [94]

Answer:

By using renewable energy sources.

Explanation:

You need to satisfy a quota of energy for (whatever country you live in). People do this by using the cheapest way of producing the most energy, the most efficient. Sounds great right? Wrong! It stuffs our atmosphere with harmful gasses like carbon dioxide. You can reduce the use of these fossil fuels by using renewable energy sources such as windmills, watermills, and most notable, solar panels!

5 0
3 years ago
Read 2 more answers
Which word best discribes entropy
salantis [7]

Entropy, the measure of a system's thermal energy per unit temperature that is unavailable for doing useful work. Because work is obtained from ordered molecular motion, the amount of entropy is also a measure of the molecular disorder, or randomness, of a system.
4 0
3 years ago
PLEASE HELP ITS A TESTT!!
Sergio [31]

Answer:

D

Explanation:

6 0
3 years ago
How will vinegar slow down the break down of an apple?
Gennadij [26K]

Answer:

Many people take apple cider vinegar before protein-heavy meals to improve digestion. The theory is that apple cider vinegar increases the acidity of your stomach, which helps your body create more pepsin, the enzyme that breaks down protein

5 0
3 years ago
Other questions:
  • Another name for Group is...
    6·1 answer
  • Is air a conductor or insulator
    13·2 answers
  • Using your value of Ksp, and starting with an equilibrium system consisting of a saturated solution of calcium hydroxide, predic
    8·1 answer
  • Calcium chloride is used to melt ice and snow on roads and sidewalks and to remove water from organic liquids. Calculate the mol
    7·1 answer
  • What phase of matter has particles that are held together but can flow past each other and takes the shape of a container, filli
    7·2 answers
  • Answer and I will give you brainiliest <br><br><br>​
    9·2 answers
  • Which group on the periodic table are the last reactive? A alkali metals B alkaline earth metals C halogens D noble gases
    8·1 answer
  • What is the difference between soluble/insoluble and miscible/immiscible?
    7·1 answer
  • What variables affect mass? (include observations)​
    11·1 answer
  • Context givin in picture
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!