2 years ago

Which is of the following is the answer for reactions demonstrates a synthesis reaction?

1 answer:

3 0

The answer is D. This is because a synthesis reaction is when two elements combined to make a product (ex. A+B= AB). Hope this helps!

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Boyle's law states that the pressure of a gas is always:

natka813 [3]

Answer:

d. inversely proportional to the volume of its container.

Explanation:

Boyle's law states that at constant temperature and number of moles, the pressure of the gas is inversely proportional to the volume of the gas.

Thus, P ∝ T

P is the pressure

T is the temperature

For two gases at same temperature, the law can be written as:-

${P_1}\times {V_1}={P_2}\times {V_2}$

<u>Thus, according to the question, the answer is:- d. inversely proportional to the volume of its container.</u>

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2 years ago

Describe how elements are laid out on the periodic table of elements.

defon

Answer:

The chemical elements are arranged in order of increasing atomic number.

Explanation:

Hydrogen = 1

Helium = 2

Lithium = 3

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28 grams of Al react with 30 Oxygen gas (O2) to produce Al Oxide (Al2O3). How many grams of Al Oxide will be produced

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Answer:

Explanation:

Due to conservation of energy, the sum of the reactants = the sum of the products. So 28 + 30 = 58g

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2 years ago

You have a pound of feathers and a pound of lead:

mafiozo [28]

Feathers have more density and less have more mass, feather is super light and a POUND of led isnt

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This chart shows the global temperature anomaly (the difference of the expected temperature and the actual temperature) over a s

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I think its 1 3 and 4

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