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
Tatiana [17]
2 years ago
7

A student performs an exothermic reaction in a beaker and measures the temperature. If the thermometer initially reads 35 degree

s Celsius, what is a possible reading of the thermometer after the reaction? A. 35 degrees Celsius B. 0 degrees Celsius C. 45 degrees Celsius D. 25 degrees Celsius
Chemistry
1 answer:
Ksju [112]2 years ago
7 0

Answer:

C

Explanation:

Exothermic means that heat is released from the reaction

You might be interested in
Which of the following atoms has the largest atomic radius? Provide an explanation
trapecia [35]

Answer:

d Rubidium

Explanation:

The atomic radius of an atom is the distance from the center of the nucleus to its outermost electron.

The atomic radius of elements varies in the periodic table, it increases as you go down in a group and decreases along the period from left to right.  

All the elements listed: Hydrogen, Sodium, Lithium and Rubidium belong to the same group in the periodic table (group 1), Since atomic radius increases from top to bottom in a group, Rubidium has the largest atomic radius.

4 0
3 years ago
I need help answering this question
Gemiola [76]

Answer:

b,d

Explanation:

An ion is an atom with a difference in the amount of protons and elektrons.

6 0
3 years ago
Read 2 more answers
Explain why neptune cannot be seen without a telescope
Law Incorporation [45]
Because it's to little
8 0
3 years ago
An isotope of cesium-137 has a half-life of 30 years. If 5.0g of cesium-137 decays over 60 years. How many grams will remain.
LenKa [72]

Answer:

1.25 gram of cesium-137 will remain.

Explanation:

Given data:

Half life of cesium-137 = 30 year

Mass of cesium-137 = 5.0 g

Mass remain after 60 years = ?

Solution:

Number of half lives passed = Time elapsed / half life

Number of half lives passed = 60 year / 30 year

Number of half lives passed = 2

At time zero = 5.0 g

At first half life = 5.0 g/2 = 2.5 g

At 2nd half life = 2.5 g/ 2 = 1.25 g

Thus. 1.25 gram of cesium-137 will remain.

6 0
2 years ago
A. When glucose molecules link up what substance do they form?
alexgriva [62]

Answer:

Explanation: b

7 0
3 years ago
Read 2 more answers
Other questions:
  • How many atoms are in 2 mol of Iron
    8·2 answers
  • what pressure will be needed to reduce the volume of 77.4 l of helium at 98.0 kpa to a volume of 60.0 l? 76 kpa 126 kpa
    9·1 answer
  • What is the IUPAC name of this compound? CI-CH2-CH2 - CH2 - CH 2 -Cl​
    13·1 answer
  • Below you will see both the elements for comparison and a star's spectrum. Your job is to identify all the elements you can dete
    6·1 answer
  • Detecta cuál de las siguientes fórmulas estructurales no cumple con la tetravalencia del carbono (formar cuatro enlaces)
    14·1 answer
  • Which of these are animal adaptations that help animals live in the deciduous forest biome? Select all that apply.
    12·1 answer
  • If petrochemicals and ALL products made from them, suddenly disappeared last night, describe one drastic change in YOUR life tha
    12·1 answer
  • Find the "density" of a copper sample whose mass is 134.4 grams and whose volume is 15.0mL
    13·1 answer
  • How to draw ethyl pentanoate?
    15·1 answer
  • Solid iron combines with oxygen gas to form solid iron(III) oxide. Which of the following equations best describes this reaction
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!