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
kap26 [50]
3 years ago
13

Mario believes he has found the reason that some things glow in the dark while others do not. What is the most important thing h

e will need to do before his theory will be accepted by other scientists?
A. Create a petition and ask everyone who believes in his theory to sign it.

B. Develop an on-line survey so people can vote on the accuracy of his theory.

C. Write a book promoting his theory.

D. Develop tests and experiments that can be repeated to prove his theory.
Chemistry
2 answers:
Advocard [28]3 years ago
6 0

It’s D. velocity test and experiment that can be repeated to prove his theory

Citrus2011 [14]3 years ago
4 0

the answer is d, cuz i just did it rn on my study island and i got it right :)

You might be interested in
Fassst. A or b or c or d plzzz
AVprozaik [17]
C, an elliptical motion
7 0
3 years ago
Read 2 more answers
Minerals with the silicon-oxygen structure shown in Figure 2-1 are classified into what group?
egoroff_w [7]
B----------- oxide is the correct answer
6 0
3 years ago
What happens to the atomic mass of an element moving from left to right within a period​
JulsSmile [24]

Answer:

As you move across a period, the atomic mass increases because the atomic number also increases. ... The atomic mass for any given atom mainly comes from the mass of the protons and neutrons.

Explanation:

4 0
3 years ago
The number at the end of an isotope's name is the number
Korolek [52]

Answer:

Atomic neutron mass electron number

Explanation:

7 0
4 years ago
Which element would mostly have chemical properties similar to that of magnesium (Mg)?
DanielleElmas [232]

The elements of same group are placed in same group as they have similar properties. So Calcium is the element which resembles Mangesium.

Calcium and Magnesium both are alkaline earth metals.

They have similar properties as they have similar outer or valence shell electronic configuration

The general electronic configuration of alkaline earht metal is ns2

The electronic configuration of Mg [atomic number 12] and Ca [atomic number 20] are

[Ne]3s^{2}  and [Ar]4s^{2} respectively.


7 0
3 years ago
Other questions:
  • Help with enthalpy please!!! <br><br> CH4(g)+O2(g)-&gt; H2O(g)+CO2(g)
    5·2 answers
  • How many moles are in 25.2 grams of HF
    14·1 answer
  • A student is told to use 20.0 grams of sodium chloride to make an aqueous solution that has a concentration of 10.0 grams of sod
    7·1 answer
  • Which statement accurately describes global warming?
    6·2 answers
  • A sample of solid sodium hydroxide, weighing 13.20 grams is dissolved in deionized water to make a solution. What volume in mL o
    8·1 answer
  • Os etapas que devem sem compridas para obter separadamente os componentes (a as substâncias ) de uma mistura de água ,sal e arei
    5·1 answer
  • Calculate the new volume if in a container there is a mass of gas that occupies a volume of 1.3L at a temperature of 280K. Calcu
    13·1 answer
  • Help please. a container has a mixture of iron fillings and sand.​
    7·1 answer
  • Please help with Chem I DON'T HAVE ENOUGH TIME!
    15·2 answers
  • A treasure chest is full of coins. The chest has a volume of 2.25L. The coins have a combined mass of 48kg. Calculate the densit
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!