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
algol13
2 years ago
12

Which of the following statements is true regarding both theories and laws?

Chemistry
1 answer:
Mariana [72]2 years ago
6 0

Answer:

D. Supported by observations

Explanation:

Because theories change over time, they both need to be proven, they do not go off of consensus, but they do need to be supported by observations.

HOPE IT HELPS❣️

You might be interested in
Determine the final temperature of sample with a specific heat of 1.1 J/g°C and a mass of 385 g if it starts out at a temperatur
Assoli18 [71]

Answer:

T2 =21.52°C

Explanation:

Given data:

Specific heat capacity of sample = 1.1 J/g.°C

Mass of sample = 385 g

Initial temperature = 19.5°C

Heat absorbed = 885 J

Solution:

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = Final temperature - initial temperature

885J = 385 g× 1.1 J/g.°C×(T2 - 19.5°C )

885 J = 423.5 J/°C× (T2 - 19.5°C )

885 J / 423.5 J/°C = (T2 - 19.5°C )

2.02°C = (T2 - 19.5°C )

T2 = 2.02°C + 19.5°C

T2 =21.52°C

8 0
3 years ago
Why is NaNO3 a homogenous mixture in terms of particle arrangement/composition?
Fed [463]
<span> A homogeneous mixture is composed of a single visible phase while a heterogeneous mixture has two or more</span>
8 0
3 years ago
Explain what would happen if an electron and a proton were brought near each other and then released. why would this happen?
Leni [432]
They would repel one another because they they have opposing charges
3 0
3 years ago
Oxygen is a __________ and nitrogen is a __________. metalloid, metalloid nonmetal, metal nonmetal, nonmetal nonmetal, metalloid
Anna35 [415]

Answer:

"nonmetal, nonmetal"

Explanation:

Oxygen is a non metal and Nitrogen is a non metal. It is 8th element of the periodic table. It is located in period 2 and group 16.

Nitrogen lies at the group 15 of the periodic table. Its atomic no is 7. Its valency is 2.

Hence, the correct option is (c) "nonmetal, nonmetal".

4 0
2 years ago
35 Given the word equation:
Fantom [35]
When the reactant is single compound before the reaction and become more than single compound after reaction is called decomposition reaction
8 0
2 years ago
Read 2 more answers
Other questions:
  • Convert 6.90 x 10-3 km to nm3
    10·1 answer
  • What is 1.23 x 10^-3 in standard notation
    14·2 answers
  • 1. A scientist studies the reaction 2NO2(g) 2NO(g) + O2(g). She performs three experiments using different concentrations of NO2
    12·1 answer
  • The combination of sulfur dioxide, nitrogen oxide, and atmospheric moisture creates
    8·2 answers
  • aluminum has a density or 2.7g/cm3. copper has a density of 8.96/cm3. which metal would you choose to build a model airplane?
    5·1 answer
  • Please help i dont understand it
    8·2 answers
  • Which of the above electron dot structures is wrong?
    15·2 answers
  • 5. Organisms that make their own energy storage molecules are called producers. What process do
    15·1 answer
  • Help I think the answer is either A or D.
    12·2 answers
  • 2. Density is a physical property of a molecule that's measured as mass per unit volume Given that deasity is
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!