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
klio [65]
3 years ago
12

(i)Write two observations when lead nitrate is heated in a test tube.

Chemistry
1 answer:
Alinara [238K]3 years ago
5 0

Answer:

i-When lead nitrate is heated, it decomposes into lead oxide (PbO), nitrogen dioxide (NO2), and oxygen gas (O2). The type of this reaction is thermal decomposition reaction.

You might be interested in
I will give brainliest if answer is good
noname [10]
Microwaves use radiant energy to cook the food. They also use electrical to make the microwave work.
4 0
4 years ago
Read 2 more answers
A liquid is cooled during an investigation causing it to solidify. Which of the following most likely occurred?
zaharov [31]

Answer:

This question lacks options, the options are;

A. Absorption of heat

B. A chemical change

C. A physical change

D. Formation of a new compound

The answer is C. A physical change

Explanation:

A physical change is a type of change that does not involve the chemical composition of the substance(s) involved. Physical changes affect the form but not the chemical content of a substance. Examples of physical changes are freezing, change of state, boiling etc.

In this question, a liquid is cooled during an investigation causing it to solidify. The cooling of this liquid represents a PHYSICAL CHANGE because the liquid state of the substance is only changed to a solid state but does not involve changing the chemical composition of the substance.

4 0
3 years ago
The unit used to measure barometric or air pressure
Bumek [7]

Answer:

A barometer is an instrument used to measure air pressure and track weather systems. The most common unit of measurement used in barometers is the millibar (mb).

Explanation:

7 0
3 years ago
What three human body systems coordinate cause an arm to move
tia_tia [17]
(A) nervous, muscular, skeletal
8 0
3 years ago
Convert 1.500 L to cm3. To the correct number of significant figures.
Tasya [4]

Answer:

1500 cubic centimeters or cm^3

Explanation:

1 liter is 1000 cm^3

move the decimal 3 places to right

8 0
2 years ago
Other questions:
  • 33. You are given a flask that contains sea water that has been contaminated with oil. Some sand is
    6·1 answer
  • when the pressure that a gas exerts on a sealed container changes from ____ atm to 2.64 atm, the temperature changes from 315 K
    10·2 answers
  • How many grams of NO will be produced from 60.0g of NO2 reacted with excess water in the following chemical reaction?
    13·1 answer
  • A redox reaction always involves
    5·1 answer
  • After creating a Beer's Law plot using standard solutions of Q, you determined the slope of Beer's Law to be 0.598 M-1. Your unk
    7·1 answer
  • What is the molarity of 245.0g of H2SO4 dissolved in 1.000L of solution?
    12·1 answer
  • Suppose you begin with 1.50~g of the hydrate copper(II)sulfate · x-hydrate (CuSO4· x H2O), where x is an integer. After dehydrat
    14·1 answer
  • write a balanced chemical equation for the reaction of zncl2 with excess NaOH to produce Na2Zn(oh)4 sodium zincate. what mass of
    5·1 answer
  • The formula of a compound is M(OH)2 . Given that the Mr of compound is 98 , calculate Ar of M. (Ar of O = 16 , H = 1 ) WITH WOKI
    7·1 answer
  • Pls help!!! How do seismic waves travel through Earth?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!