CHEMISTRY MIDDLE SCHOOL

How would you classify elements from compound

pa answer po need ko 4 sentence

Answers

Answer 1
Answer:

Answer: Elements are pure substances which are composed of only one type of atom. Compound are substances which are formed by two or more different types of elements that are united chemically in fixed proportions.

Cl_(2) consists of 2 Cl atoms.. although its the same type. So it is an element.

Water (H_(2) O) consists of 2 different atoms. (hydrogen and oxygen) hence is a compound.

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Answer:

decomposistion,single replacement,double replacement,and sythesis

Explanation:

nmnbmm

Can you help me with acrostic poem?

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An acrostic poem is a type of poetry where the first, last or other letters in a line spell out a particular word or phrase.

Which model below would best describe the digestive system?a long hollow tube with openings at both ends
a small swimming pool
a candle stick
a water balloon tied at the top

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if it were me I would use the long hollow tube with opening at the end
I'd say a long hollow tube with a hole at the end.
Hope this helps! :)

Why can hydrogen only form one covalent bond?

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because its in group one....which only lose or gain electrons.....thus it will only have oneelectron to fulfill its octect rule

Identify the terms,like terms,coefficients and constants


2+3a+9a

Answers

Like terms :  3a and 9a

Terms: All of them

Coefficients:  3 and 9

Constant : 2
Like terms in algebra are terms that have the same variables and power. Constants contain only numbers, we call them constants because their values don't change. Coefficients are the numbers in front of the variable ex: 5y in that expression 5 is the coefficient. So in the expression 2+3a+9a there is one constant which is 2 the likes terms are 3a and 9a because they have the same variable. And the coefficients are 3 and 9 because they are in front of the variable.
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