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
NNADVOKAT [17]
2 years ago
15

Help. The answer to question 1 I didn't mean to click so please answer that as well.

Chemistry
1 answer:
Zepler [3.9K]2 years ago
4 0
We have that energy=specific heat * change in temperature * mass. Thus, we have the final temperature (22) minus the initial temperature (55) to equal -33 as our change in temperature. Our specific heat is in J/g*C, so we're good with that because g stands for grams and the aluminium is measured in grams. As there are 10 grams of aluminum, we have
10*(-33)*0.902=-298 ish as our final temperature

An exothermic reaction would release energy and would therefore lose heat itself, while an endothermic reaction would absorb energy and gain heat. Therefore, losing heat would be an exothermic reaction

Feel free to ask further questions!
You might be interested in
Why are atoms of lithium, sodium, and potassium almost neverfound alone in nature
yuradex [85]
<span> The Alkali elements are so reactive that they are </span><span>never found alone in nature</span>
6 0
3 years ago
Read 2 more answers
In this equation, 2Mg + 02 → 2MgO, what's the coefficient of the oxygen molecule?
lora16 [44]
A. 2
trust me i used to so this in middle school
7 0
3 years ago
Read 2 more answers
2. The temperature of a gas is increased from 125⁰C to 182⁰C inside of a rigid container. The original pressure of the gas was 1
Lina20 [59]

P1/T1 = P2/T2

125⁰C = 398.15 k

182⁰C = 455.15 k

1.22/398.15 = p2/455.15


p2= 1.39atm

the pressure of the gas be after the temperature change is 1.39 atm

7 0
3 years ago
Read 2 more answers
Can a electron be found in an exact spot within a atom
goldenfox [79]

Answer:

Electrons are located in an electron cloud, which is the area surrounding the nucleus of the atom. There is usually a higher probability of finding an electron closer to to the nucleus of an atom.

Explanation:

5 0
3 years ago
Please help me do this question.
masya89 [10]

Answer:

In chemistry, there are three definitions in common use of the word base, known as Arrhenius bases, Brønsted bases and Lewis bases. All definitions agree that bases are substances which react with acids as ... A ...

Acids are species with pH less than 7, while bases those with pH greater than 7. ... Using Arrhenius' definition, acids are those that produce the hydrogen ion when dissolved in water ( ) while bases produce the hydroxide ion ( ). These ions, when in water, act as charge carriers and can hence conduct electricity.

Acid–base reactions require both an acid and a base. ... For example, according to the Arrhenius definition, the reaction of B If inorganic, determine whether the compound is acidic.

Explanation:

I HAVE GIVE DIFINITIO FROM THAT YOU WRITE TRUE OR FALSE

8 0
3 years ago
Other questions:
  • I need help ASAP please
    15·1 answer
  • What if cell differentiation did not occur?
    12·1 answer
  • What keeps the Earth's atmosphere from floating away?
    7·2 answers
  • What are 4 basic functions of a basic computer?
    5·1 answer
  • How to determine the number of valence electrons using the As and Bs system
    12·1 answer
  • Use the following equation to answer the questions that follow.
    10·1 answer
  • The smooth endoplasmic reticulum is associated with the production of <br> ___
    7·1 answer
  • How many moles of NH3 are there in 77.5 g of NH3?
    8·1 answer
  • Why do scientists follow a set oder of steps when carrying out a scientific investigation?
    9·1 answer
  • Write True If the statement Is Correct And False If Not​
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!