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
Zina [86]
3 years ago
11

Boojho wants to separate the following materials as combustible and non-combustible. Can you help him?

Chemistry
1 answer:
katrin2010 [14]3 years ago
3 0

Combustible: Charcoal, straw, cardboard, paper, candle, wood.

Non-combustible: Chalk, stone, iron rod, copper coin, glass.

You might be interested in
Ammonia reacts with oxygen to produce nitric acid (HNO3) and water. What mass of nitric acid, in grams, can be made from 892 g o
sergiy2304 [10]

Answer:

The answer to your question is: 3305.6 g of HNO₃

Explanation:

Data

mass HNO₃ = ?

mass NH₃ = 892 g

Balanced Reaction

                          2 NH₃    +   4 O₂     ⇒    2HNO₃    + 2H₂O

MW NH₃ = 14 + 3 = 17g

MW HNO₃ = 1 + 14 + 48 = 63 g

                          34 g of NH₃   ------------------  126 g of HNO₃

                       892 g of NH₃   ------------------    x

                       x = (892 x 126) / 34

                      x = 3305.6 g of HNO₃

4 0
4 years ago
How many black men were studied in the Tuskegee experiment?
anygoal [31]

Answer:

600 black men

Explanation:

309 with syphilis and 201 did not have the disease

4 0
3 years ago
Which term names the underground region between where water saturates pores and where it does not? A. water zone B. water table
Pani-rosa [81]
A)Water Table :)


Enjoy
3 0
3 years ago
Read 2 more answers
For many years scientists thought that dinosaurs rapidly replaced their ancestors. New information shows that dinosaurs and thei
ololo11 [35]

Answer:

The evidence that is most likely to support the idea that dinosaurs and their ancestors could have coexisted for millions of years is bones of three different species were found in the same rock layer (option D).

Explanation:

Fossils have been the strongest evidence of the existence of extinct species in the remote past. The discovery of some species and their possible ancestors in the same layer of rocks confirms the possibility of the coexistence of evolutionary forms of the same species, for a great period of time.

Once the fossils have been found, paleontologists use molecular genetic techniques to identify the fossils and their relationship with others found in the same place.

The approach suggests that it is not necessary for a species to become extinct in order for its evolutionary descendant to appear, considering coexistence for thousands or even millions of years.

The other options do not provide solid evidence to support this approach.

<em>A. Fewer fossils were found of amphibians than of dinosaurs, which does not specify an evolutionary relationship.</em>

<em>B. More fossils found were of larger organisms than of dinosaurs,  which is not true, because species descended from dinosaurs tend to be smaller.</em>

<em>C. Herbivore bones were found in each rock layer, not related to the approach.</em>

8 0
4 years ago
Thermal power plants heat __ to create steam <br> A wood<br> B water<br> C plants<br> D fossil fuel
soldier1979 [14.2K]
B water

Hope this helps!
4 0
4 years ago
Read 2 more answers
Other questions:
  • What is an iron nail ?
    12·1 answer
  • Please help. QUICK LIMITED TIME
    10·1 answer
  • Which of these mixtures would best be separated through distillation
    5·1 answer
  • Acetylene gas is often used in welding torches because of the very high heat produced when it reacts with oxygen gas, producing
    15·1 answer
  • C2H4O2
    12·1 answer
  • Which organelle prepares material for storage within the cell
    12·1 answer
  • The uncertainty in the measurement 0.0035 mg is:_______ A) + 0.1 mg B) + 0.01 mg C) 0.001 mg D) + 0.0001 mg
    9·1 answer
  • A solution of NaF is added dropwise to a solution that is 0.0144 M in Ba2+. When the concentration of F- exceeds ________ M, BaF
    5·1 answer
  • What is the balanced equation of Na2S+CuSO4=CuS+Na2SO4?​
    9·1 answer
  • Substrate: N-benzoyl-L-tyrosine ethyl ester (BTEE) 0.001M in 50% aqueous
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!