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
mamaluj [8]
2 years ago
12

Can someone please answer this question please I really need to know

Chemistry
1 answer:
Zarrin [17]2 years ago
8 0

Answer: aging?

Explanation: sorry, i’m not too sure, but that would be my best guess.

You might be interested in
Why do we use scientific notation or scientific exponential numbers in math calculations?
seraphim [82]
I believe the answer is: in order not to write very big or very small number values
6 0
3 years ago
A sample of copper absorbs 4.31E+1 kJ of heat, resulting in a temperature rise of 6.71E+1 °C. Determine the mass (in kg) of the
olga2289 [7]

Answer: 1.67 kg

Explanation:

The quantity of heat required to raise the temperature of a substance by one degree Celsius is called the specific heat capacity.

Q=m\times c\times \Delta T

Q = Heat absorbed=4.31\times 10^1kJ = 43100J   (1kJ=1000J)

m= mass of substance = ?

c = specific heat capacity = 0.385J/g^0C

Change in temperature ,\Delta T=T_f-T_i=6.71\times 10^1^0C=67.1^0C

Putting in the values, we get:

43100J=m\times 0.385J/g^0C\times 67.1^0C

m=1670g=1.67kg   (1kg=1000g)

Thus the mass (in kg) of the copper sample is 1.67

3 0
3 years ago
Ions can have a positive or negative charge. false or true
Fudgin [204]
True. Ions can have a positive or negative charge.
7 0
3 years ago
Read 2 more answers
Atomic mass number of first 30 elements
dangina [55]

Answer:

Element Atomic Number Atomic Mass

Nickel          27                          58.6934

Cobalt             28                   58.9332

Copper            29                  63.546

Zinc                   30                            65.39

Explanation:

4 0
3 years ago
1. The behavior that occurs when a wave bends as it changes media is known as
Pepsi [2]
D because its changing
4 0
3 years ago
Read 2 more answers
Other questions:
  • In an experiment, zinc chlorate decomposed according to the following chemical equation.
    5·2 answers
  • Why is the solubility of a neutral organic compound unaltered by exposure to aqueous acid or base?
    15·1 answer
  • The solubility of barium carbonate, BaCO3, is 0.0100 g/L. Its molar mass is 197.3 g/mol. What is the Ksp of barium carbonate? Ex
    12·2 answers
  • How much is the density of carbon dioxide gas if .392g occupies a volume of 200 ml
    13·1 answer
  • What is the effect of the room temperature on how well s student does on a test
    6·1 answer
  • Hydrogen cyanide (HCN) is an important industrial chemical. It is produced from methane (CH4), ammonia, and molecular oxygen. Th
    11·1 answer
  • People mine zinc metal for use as an anticorrosive, skin protectant, and in electrical components. Zinc mining involves using ch
    15·2 answers
  • What does refluxing a reaction mean in organic chemistry lab?
    7·1 answer
  • What is a mixture ?<br><br> How do homogeneous &amp; heterogeneous mixtures differ ?
    7·1 answer
  • What would be the mass in grams of 8.94 x 10 22 formula units of copper(II) fluoride, CuF 2
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!