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
lana [24]
2 years ago
15

I need help with this! I don't fully understand it

Chemistry
1 answer:
ZanzabumX [31]2 years ago
6 0

Answer:

1. highest is 25.7c° and lowest is 20.0c°

2.Is Exothermic.  An Endothermic Reaction is a chemical reaction that absorbs energy in the form of light or heat. In it, the energy or enthalpy of the reactants is less than that of the products. An Exothermic Reaction is a chemical reaction that gives off energy in the form of light or heat.

3. Reactans.

4. The substance(s) to the left of the arrow in a chemical equation are called reactants. A reactant is a substance that is present at the start of a chemical reaction. The substance(s) to the right of the arrow are called products . A product is a substance that is present at the end of a chemical reaction.

You might be interested in
HELP Which of the following fractions can be used in the conversion of 32 m3 to the unit mm3?
poizon [28]
We know that each millimeter contains 10⁻³ meters. Writing this as a ratio:
1 mm : 10⁻³ m

We require a conversion from m³ to mm³, so we must take the cube of the ratio we have made:
1 mm³ = (10⁻³)³ m³

Therefore, the conversion used will be:
(1 mm / 10⁻³ m)³

When we multiply by this conversion, we will get:
32 m³ = 32 x 10⁹ mm³
7 0
3 years ago
Using this illustration, what is the chemical formula? Picture and possible answers are below.
qwelly [4]
NH3. 1 nitrogen and 3 hydrogen
4 0
3 years ago
Read 2 more answers
Why both men and women could become victims of violence
ycow [4]
Because some people don't care if your a man or a woman they'll still try to harm you which is wrong cause i don't see why people have to kill each other but they do its out of bad habit and its also what they choose in life some people choose to be murders and some choose to go to work and have a family instead of being in jail for the rest of your life unless your sentenced to death. But some people don't understand a lot of things but i do well some but i do know this that when people kill someone they may feel bad but sometimes they don't they feel happy and wanna do it again so they run and try not to get caught. but life isn't fair but lets hope that the world will come around again if it ever does but its always gonna be on the news that someone is murdered.
3 0
3 years ago
How many molecules of nitrogen gas are in 22.4 L?
Serhud [2]
The answer is letter (B).
3 0
3 years ago
Read 2 more answers
Find the pH of a solution whose H concentration is 0.7 x 10-3.
dexar [7]

Answer: pH = 3.15

Explanation: Solved in the attached picture.

6 0
3 years ago
Other questions:
  • the water in a tea pot is heated on a stove top. The temperature of the water increases. Is this an endothermic or exothermic pr
    10·1 answer
  • Scientists interested in early life on Earth including the first cells and the last universal common ancestor of all three domai
    13·1 answer
  • 20 POINTS PLEASE ANSWER
    6·1 answer
  • GIVE REASON:A gas fills completely the container in which it is kept
    12·2 answers
  • 4. The woman's auxiliary at the Fire Company need to make 250 one pound pie crusts for a fund raiser. If
    5·1 answer
  • Which of the following numbers is in scientific notation?
    15·1 answer
  • How many grams of product might form for the following reaction if 33.8 L of Oxygen gas is used in the following reaction? LiCl
    14·1 answer
  • What is the significance of a gene?
    13·1 answer
  • 238/93Np → 0/-1e + ?
    15·1 answer
  • Can y’all Please help !!!!
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!