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
belka [17]
3 years ago
11

A -------(fact, hypothesis, theory) is scientific knowledge established through direct observation and remains constant. Scienti

fic knowledge can change when scientists ------( conduct experiment, generate hypothesis, hold different views).
Chemistry
2 answers:
Lerok [7]3 years ago
4 0
<h2>Answer:</h2>

1. The first choice is correct which is<u> fact.</u>

2. The first choice which is <u>conduct experiment</u> is correct.

<h3>Explanation:</h3>

A fact is nonscientific observation based law which can not be changed because any experiment could not be conducted to test it. As the sun sets in the west.

While a scientific theory or observation can be changed because experiment can be conducted on these. As dengue is caused due to a virus.

lutik1710 [3]3 years ago
3 0
I believe that you are needing to pick from the three word choices. I believe the first one would be fact and the second one would be conduct experiment.
You might be interested in
What is the molarity of a potassium triiodide solution, KI3(aq), if 30.00 mL of the solution is required to completely react wit
vfiekz [6]

Answer:

The molarity is 0.203 M

Explanation:

Using the formula C(oxi) x V(oxi) / [C(red)  x  V(red)] = N(oxi) / N(red)

Where oxi and red means reducing agent and oxidising agent respectively.

C = Concentration, V = Volume and N = number of moles.

C(oxi) = 0.5 M

V(oxi) = mL

C(red) = ?

V(red) = 30mL

 Equation of reaction = 2K2S2O3 + KI3 = K2S4O6 + 3KI

so N(red) = 1 , N(oxi) = 2

from the equation above,

C(red) = 0.5 x 25 x 1 / (2 x 30)

          = 0.203 M.

3 0
3 years ago
Which option is an example of a chemical change?
MA_775_DIABLO [31]
Firework exploding. Thank you :)
6 0
3 years ago
Question 3
Dmitrij [34]

Answer:

snow and very low temperatures are predicted for tomorrow.

Explanation:

snow and very low temperatures are associated with average weather condition of a place thus making it a statement about climate.

4 0
3 years ago
A home remodeling company charges $10 per square yard for installing new carpets. What is the cost for installing a carpet for a
balu736 [363]

Answer:

$200.0 is the cost for installing a carpet for a room that measures 12.0 feet by 15.0 feet.

Explanation:

Length of the room = l = 15.0 ft = \frac{15.0}{3} yard=5.0 yard

Width of the room = w = 12.0 ft = \frac{12.0}{3} yard=4.0 yard

(1 yard = 3 feet)

Area of the room = l × w = 4.0 yard\times 5.0 yard = 20.0 yard^2

Cost for installing a carpet for a room = $10 per square yard

Cost for installing a carpet for a room wit area 20.0 square yard :

20.0 yard^2\times $10/ yard^2=$200.0

$200.0 is the cost for installing a carpet for a room that measures 12.0 feet by 15.0 feet.

7 0
3 years ago
The matter through which waves travel is called a/an​
sweet [91]

Answer:

A medium.

<h3>Explanation:</h3>

It's the material the wave is travelling through.

5 0
3 years ago
Other questions:
  • Why are noble gasses ''inert''
    10·1 answer
  • A reaction vessel contains 10.0 g of CO and 10.0 g of O2. How many grams of CO2 could be produced according to the following rea
    13·1 answer
  • Hen one atom contributes both bonding electrons in a single covalent bond, the bond is called a(n) ____.
    11·1 answer
  • Why does SO2 and water make H2SO3 and NOT H2SO4? Explain your answer.
    8·1 answer
  • What is the consecration of a solution that is made by diluting 50.0 mL of a 40.0 M NaCl solution to a final volume of 1000.0 mL
    12·1 answer
  • A/an __ is a type of mass movement that occurs when a thin block of soil, rock, and debris separates from the underlying bedrock
    6·1 answer
  • What does burning bread in a toaster demonstrate? (a) Energy can create a change. (b) Energy can cause motion. (c) A toaster cre
    12·1 answer
  • What are the two components of a solution
    10·1 answer
  • _ _ _+Cl₂ ➡️ MgCl₂ Complete given Reaction<br>​
    12·2 answers
  • Plsss answer my question that's on my profile pls​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!