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
stira [4]
2 years ago
13

Is this statement true or false?

Chemistry
1 answer:
In-s [12.5K]2 years ago
7 0

Answer:

true

Explanation:

we have many sattelites that are seen by many astounouts in space by telescope but more than half space is not discoverd

You might be interested in
Methane (CH4), ammonia (NH3), and oxygen (O2) can react to form hydrogen cyanide (HCN) and water according to this equation:
egoroff_w [7]

The grams  of  oxygen that are required  to produce 1  mole  of H₂O  is 16 g ( answer  B)

<u><em> calculation</em></u>

2 CH₄  + 2NH₃ +3 O₂ → 2HCN  + 6H₂O

step 1: use the mole ratio to find moles of O₂

from equation above the  mole ratio  of O₂: H₂O  is 3:6 therefore the moles of O₂  = 1 mole x3/6 =0.5 moles

step  2: find   mass of O₂

mass= moles x molar mass

from periodic table the molar mass  of O₂ = 16 x2= 32 g/mol

mass O₂ = 0.5 moles x 32 g/mol = 16 g (answer B)

6 0
3 years ago
Read 2 more answers
Plz help me out!!!!!
Lelu [443]

Answer:

i am not 100% sure but im pretty sure there is.

Explanation:

7 0
2 years ago
6. _______ is a neutral solution. A. Blood B. Salt water C. Pure water D. Milk E. All of the Above
FinnZ [79.3K]

The answer is option E. All of the above

4 0
3 years ago
What can the presence of suffixes such as -ite,-ate,or -de in a chemical name indicate?
laila [671]

Answer: Most polyatomic ions are -ate, related ions that have 1 fewer oxygen atom are -ite (must have at least 1 oxygen tho) and nonmetals are ide.

Explanation:

3 0
1 year ago
Describe the three steps involved in producing crystals of the salt copper sulfate.
denpristay [2]

Answer:

Add copper (II) oxide (insoluble base), a little at a time to the warm dilute sulfuric acid and stir until the copper (II) oxide is in excess (stops disappearing) Filter the mixture into an evaporating basin to remove the excess copper (II) oxide. Leave the filtrate in a warm place to dry and crystallize.

7 0
2 years ago
Other questions:
  • Which of the following is a property of water? It can freeze very fast. It has low heat capacity. It exists in all three states
    7·2 answers
  • The SI unit for quantity of radioactive materials is:
    5·1 answer
  • HOW MANY GRAMS OF NAOH ARE NEEDED TO MAKE 500ML OF 2.5M NAOH
    6·1 answer
  • Find the perimeter of the square and then convert the answer to meters
    11·1 answer
  • What does a Mitochondrion do
    5·2 answers
  • * If you found a fossil like the one pictured above in an open grassy field, what could you infer about this particular part of
    7·2 answers
  • Please help Me I really need it
    15·1 answer
  • Which plate, oceanic or continental, must be more dense?
    8·1 answer
  • Which of the following is always involved in a scientific inquiry?​
    13·1 answer
  • you dropped a hot, heated metal into the water. after the metal was dropped, the temperature of the water?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!