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Oksana_A [137]
3 years ago
15

What best describes the goals of scientific investigation and technological development?

Chemistry
2 answers:
torisob [31]3 years ago
8 0

Answer:

Scientific investigation aims to design and implement an experiment to learn new information, where

development aims to design a product to solve a problem.

Explanation:

mel-nik [20]3 years ago
7 0

Answer:

D

Explanation:

Scientific investigation aims to design and implement an experiment to learn new information, whereas technological development aims to design a product to solve a problem.

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According to the Brinsted -Lowry. what is an acid ? what is a base ? ​
sasho [114]

Answer:

According to the Brønsted definition, an acid is a substance capable of donating a proton, and a base is a substance capable of accepting a proton. ... The species giving up the proton is HCl, an acid. The species accepting the proton is water, the base. The species Cl- is the conjugate base of HCl.

8 0
3 years ago
Which atom in the ground state has the same electron configuration as a calcium ion, Ca2+, in the ground state?(1) Ar(2) K(3) Mg
Irina-Kira [14]

atoms are made of 3 types of subatomic particles; electrons, protons and neutrons

atomic number is the number of protons. atomic number is characteristic for the element. In ground state atoms, the number of electrons and protons are the same.

the electronic configuration of Ca in the ground state is

Ca - 1s² 2s² 2p⁶ 3s² 3p⁶ 4s²

when Ca loses its 2 valence electrons, it becomes positively charged and the electronic configuration becomes

Ca - 1s² 2s² 2p⁶ 3s² 3p⁶

number of electrons in Ca²⁺ is 18

the atom in the ground state would have the same number of electrons and protons. Therefore number of protons are 18. then the atomic number of the element is 18

the atom having an atomic number of 18 is Ar.

the answer is 1) Ar

7 0
3 years ago
Read 2 more answers
What determines how ionic bonds will form?
Harrizon [31]

Answer:

I think the answer should be B. Number of valence electrons

8 0
3 years ago
The electronegativity of nitrogen (n) is 3.0, while the electronegativity of hydrogen (h) is 2.1. knowing this, consider how the
Goryan [66]

The electronegativity of nitrogen (N) is 3.0, while the electronegativity of hydrogen (H) is 2.1. As it can be seen that nitrogen (N) is more electronegative than that of hydrogen (H),  

So electron pairs are attracted towards nitrogen and thus it carries a partial negative charge and hydrogen carries a partial positive charge. The image of electron distribution is attached as follows.

Thus NH₃ is a polar molecule .

8 0
3 years ago
What are covalently bonded compounds that contain carbon called?
kogti [31]
They are called hydrocarbons
3 0
3 years ago
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