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Kryger [21]
2 years ago
9

You will learn that matter is neither created nor destroyed in any chemical change. Is this statement a theory or a law?

Chemistry
1 answer:
melomori [17]2 years ago
4 0
It's a law because the theory is just a statement
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HELP NOW!!
Bess [88]
Alkaline Earth Metals are the elements located in the second period from the left of the periodic table. These elements lose two electrons to form the stable octet when forming an ionic bond, resulting in a net charge of +2. Because they’re trying to get rid of those electrons to get to the stable octet, it’s easy to remove them - this means that the ionization energy of these elements is relatively low. Finally, since they’re looking to get rid of electrons, they certainly aren’t trying to gain any, meaning that their electronegativity is relatively low.

The correct answers are A and D.
3 0
2 years ago
Read 2 more answers
What is Kb for CH3NH2(aq) + H2O(1) CH3NH3(aq) + OH (aq)?
statuscvo [17]

Answer:

Kb for CH₃NH₂ (methylamine) is 4.4 × 10⁻⁴

Hope that helps.

8 0
3 years ago
NEED HELP ASAP WILL MARK BRAINLIEST
Andreas93 [3]

Answer: only O is unbalanced

Explanation:

There are only 2 oxygen atoms on the left but in the right there are 4

8 0
3 years ago
a certain piece of copper wire is determined to have a mass of 2.0 0g per meter how many centimeters of the wire would be needed
harina [27]

The given question tells you that a certain piece of wire has a mass  = 2.0 g per meter

That means that if you consider a piece of wire that is 1 m in length, its mass will be equal to  2.00 g .

According to question,

Now, you know that

1 m = 100 cm

Mass of  2.00 g  of copper will correspond to a wire that is a 100 cm long.

This implies that  0.28 gof copper will correspond to a wire that is

0.28 g * 100 cm /  2.0 g = 14 cm long

Hence, 14 cm of the wire would be needed to provide 0.28 g of copper.

Properties of Copper :

High conductivity and ductility.

Non magnetic.

To know more about Copper here:

brainly.com/question/19761029?referrer=searchResults

#SPJ4

3 0
1 year ago
Boris is interested in conducting his first "real" scientific research. However, he is a bit overwhelmed with all of the possibl
11111nata11111 [884]

Answer:

Questionnaire

Explanation:

This is an instrument for research usually in the form of questions with multiple choice answers with sole purpose of gathering information from respondents for research.

5 0
3 years ago
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