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
Lubov Fominskaja [6]
3 years ago
12

List 4 clues that a chemical reaction is occurring

Chemistry
2 answers:
lions [1.4K]3 years ago
6 0
Bubbles, color change, light and heat
kati45 [8]3 years ago
3 0
Bubbles, color change, temperature change, excess material rubbing off, and noise, like sizzling
You might be interested in
What is an oxidation reaction? ​
kow [346]
<h3>Definition:</h3>
  • A reaction when an atom or compound loses one or more electrons.

  • It is a reaction is a type of chemical reaction that involves a transfer of electrons between two species.

  • Oxidation is gain of oxygen

<h3>For Example:</h3>

Fe + O2 —(H2O)—> Fe2O3

7 0
3 years ago
What type of chemical reaction is C6H6 + CI2 = C6H5CI + HCI
elixir [45]

for it to be balanced in this case would be " <em>4</em> C6H6 + <em>6</em> CI2 = <em>3</em> C6H5CI + <em>9</em> HCI" therefore it's be a <u>Double Replacement</u>

8 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
Used to describe an atoms ability to chrmically bond with another atom?​
ludmilkaskok [199]
The answer would be electronegativity
6 0
3 years ago
Read 2 more answers
Two moles of magnesium and five moles of oxygen are placed in a vessel. When magnesium is ignited ca two moles of magnesium and
Greeley [361]
Limiting reactant in this experiment would be Magnesium since it will run out first
4 0
3 years ago
Other questions:
  • Solid sodium reacts with liquid water to form hydrogen gas according to the equation 2 Na(s) + 2 H₂O(l) → 2 NaOH(aq) + H₂(g) Wha
    15·1 answer
  • Describe and explain the chemical reactivity of noble gases
    11·1 answer
  • Balance the following chemical equation using the smallest set of integers. I₂ + Cl₂ + H₂O ---&gt; HIO₂ + HCl The coefficient on
    13·1 answer
  • What volume of 0.305 m agno3 is required to react exactly with 155.0 ml of 0.274 m na2so4 solution? hint: you will want to write
    8·1 answer
  • Distilled water is _____.<br> an acid<br> a base<br> a neutral
    10·1 answer
  • Conversion factor 2.23 seconds to kilograms
    9·1 answer
  • Argon, which comprises almost 1 percent of the atmosphere, is approximately 27 times more abundant than CO2, but does not contri
    11·1 answer
  • The water molecule H2O is polar because it contains two polar single bonds and A. its molecule has a linear shape. B. molecules
    11·2 answers
  • Match the scientist to his contribution to the atomic theory - Thomson - Rutherford - Bohr A. Electron energy levels B. Nucleus
    13·1 answer
  • What advances in science have been made as a result of radiometric dating?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!