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Setler79 [48]
3 years ago
15

Why should hypothesis be testable?

Chemistry
2 answers:
Zepler [3.9K]3 years ago
5 0

Answer:

D. It must be testable in order to be found true or false.

<em>APEX</em>

iren [92.7K]3 years ago
4 0
When a hypothesis is testable, it means that it's possible to see whether the prediction is true or not. Testing a hypothesis can include conducting experiments, collecting data and making observations.
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Can someone pls help me with this question
artcher [175]

Answer:

The answer to your question is 24.325

Explanation:

Data

Magnesium-24  Abundance = 78.70%

Magnesium-25  Abundance = 10.13%

Magnesium-26  Abundance = 11.17%

Process

1.- Convert the abundance to decimals

Magnesium-24  Abundance = 78.70/100 = 0.787

Magnesium-25  Abundance = 10.13/100 = 0.1013

Magnesium-26  Abundance = 11.17/100 = 0.1117

2.- Write an equation

Average atomic mass = (Atomic mass-1 x Abundance 1) + (Atomic mass 2 x

                                       Abundance-2) + (Atomic mass 3 x Abundance 3)

3.- Substitution

Average atomic mass = (24 x 0.787) + (25 x 0.1013) + (26 x 0.1117)

4.- Simplification

Average atomic mass = 18.888 + 2.533 + 2.904

5.- Result

Average atomic mass = 24.325

5 0
3 years ago
I NEED THE ANSWER IMMEDIATELY TONIGHT, PLEASE!!!
anzhelika [568]

Answer:

Ra,Ba,In,Sb,As,P hope this helps you out good luck

5 0
3 years ago
What is the<br> total charge of 1 proton, 1 electron, and 1 neutron?
iragen [17]

Given parameters:

Number of protons  = 1

Number of electrons = 1

Number of neutrons  = 1

unknown:

Total charge = ?

Atoms are made up of elementary particles of protons neutrons and electrons.

Protons are the positively charged particles in an atom

Electrons are the negatively charged particles

Neutrons do not carry any charges

To find the total charge on an atom; simply find the difference between the number of protons and electrons.

       Total charge  = Number of protons - number of electrons

                               = 1 - 1

       Total charge is 0

Therefore, the total charge is zero, 0

7 0
3 years ago
Read the excerpt from Levitt and Dubner’s Freakonomics.
VARVARA [1.3K]

Answer:

The answer is D

Explanation:

5 0
3 years ago
Read 2 more answers
What is another word for chemical change
satela [25.4K]

oxidisation.

decomposition reaction.

displacement.

chemical decomposition reaction.

neutralisation reaction.

chain reaction.

chemical action.

reducing.

4 0
3 years ago
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