CHEMISTRY MIDDLE SCHOOL

Is 2 pounds bigger than 80 ounces

Answers

Answer 1
Answer: no because 2 pounds only equals 16 ounces times 2 so it equals 32 ounces which is not bigger than 80
Answer 2
Answer: no because 2 pounds is 16 

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Which of the following is not a negative consequence of upward urban growth?a. pollution
b. creation of a "heat island"
increased use of surrounding land
d. waste management issues
C.
Please select the best answer from the choices provided
A
B
С
D

Answers

Answer:

D. Waste management issues

Explanation:

Answer A: The five major types of pollution - water pollution, air pollution, land pollution, light pollution, noise pollution - have negative effects on the environment, on human health, and our planet as a whole.

Answer B: Urban Heat Island (UHI) is an urban area that is significantly warmer than its surrounding rural areas due to human activities. UHI decreases air quality.

Answer C: The increased use of surrounding land is the main cause of biodiversity loss.

Answer D: Any field of environmental management help people to solve pollution problems. So, D is the correct answer.

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Hope this answer can help you. Have a nice day!

Answer:

C. increased use of surrounding land

Explanation:

Edge2021

What were the limitations of democritus's ideas about atoms

Answers


he thought that atoms were the smallest particle and could not be divided any more. the word 'atomos' which atom is derived from, means indivisible. we now know that atoms are made of sub-atomic particles, which are made of quarks (what sort of name is that), and these quarks are made of leptons and gluons.

Final answer:

Democritus's ideas about atoms were limited in that he claimed they were indivisible and indestructible, lacked experimental evidence, and didn't account for chemical behavior or atomic bonding.

Explanation:

Democritus, an Ancient Greek philosopher, made significant strides in atomic theory. However, his ideas had several limitations. Firstly, he believed that atoms were indivisible and indestructible, which we now know is incorrect, with subatomic particles like protons, neutrons, and electrons forming atoms. Secondly, Democritus had no experimental evidence to support his ideas, they were purely philosophical. Lastly, his theory did not account for chemical behavior or the bonding of atoms, concepts that are now fundamental to our understanding of chemistry.

Learn more about Democritus's ideas about atoms here:

brainly.com/question/32371199

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A solution labeled "0.105 M NaOH" would contain ______________ moles of NaOH in each liter of solution.

Answers

Answer:

A solution labeled "0.105 M NaOH" would contain 0.105 moles of NaOH in each liter of solution.

Explanation:

The concentration of a solution in Molarity (M) stands for the number of moles of that substance contained in 1 L of solution.

Molarity = Concentration in mol/L = (Number of moles of solute) ÷ (Volume of solution in L)

Molarity = Concentration in mol/L = 0.105 M = 0.105 mol/L

Number of moles of solute = ?

Volume of solution in L = 1 L

0.105 = Number of moles of solute × 1

Number of moles of solute = 0.105 mole

Hence, a solution labeled "0.105 M NaOH" would contain 0.105 moles of NaOH in each liter of solution.

Hope this Helps!!!

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.

Hi :) how to test if a solution is neutral?

Answers

Explanation:

solution is neutral because it added water and water is neutral solution

What happened when citric acid and and bicarbonate soda mixed together

Answers

The reaction follows the normal rules for an acid-carbonate reaction, which in turn is a special kind of acid-base reaction.

Acid + Carbonate -> Salt + Water + CO2

(Citric Acid) + (bicarbonate soda) -> (Trisodium citrate) + water + CO2

This is a very fast reaction, which produces a lot of carbon dixoide in a very short amount of time, which is the bubbles that you see. The other chemicals produce are clear liquids, so you don't see any of them.
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