Weight is a measure of the: amount of matter in an object force of gravity on an object height and length of an object

Chemistry

2 answers:

Oksana_A [137]3 years ago

7 0

The force of gravity acting on an object

MatroZZZ [7]3 years ago

3 0

Answer:

Weight is a measure of force of gravity on an object.

Explanation:

Weight of an object is the force acting on an object due to gravity of earth which pulls the object towards its center.

Weight(W)= $mass(m)\times acceleration(a)$

Acceleration due to gravity = $9.80m/s^2$

Putting in the values we get,

$1 kg\times m/s^2=1kgms^{-2}=1Newton(N)$ .

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How many molecules of ammonia are formed in the following equation: N2+3H2→2NH3

Katena32 [7]

Answer:

two molecules of ammonia are formed by the reaction of one nitrogen and three hydrogen molecules.

Explanation:

The balanced chemical equation provides information on:

Reactants: those are the compounds that appear of the left side of the equation, each with its chemical formula.

Products: those are the compounds that appear on the right side of the equation, again, each with its chemical formula.

Ratio: the coefficients of each compound (the number to the left of the chemical formula) represent the ratio of the number of molecules that react and are formed.

In the given equation you have:

Equation: N₂ + 3H₂ → 2NH₃

The coefficients are 1 for nitrogen, 3 for hydrogen, and 2 for ammonia. Hence, 2 molecules of ammonia are formed by the reaction of 1 molecule of nitrogen and 3 molecules of hydrogen.

7 0

3 years ago

An atom of element X has one more shell of electrons than an atom of beryllium, but it has one less valance electron than beryll

irakobra [83]

The atomic number of Be is 4, and so it has 2 shells. There are valence electrons in the second, which is the outermost, shell of Be. To get the element with one more shell, there would be 3 shells on the new element, and 1 less valence electron, so the new element should have 1 valence electron. Sodium is the element with 3 shells, and one valence electron which fits perfectly into the description.

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3 years ago

A sample of Ca(OH)2 is considered to be an Arrhenius base because it dissolves in water to yield

postnew [5]

The answer is C. Arrhenius bases increase the concentration of OH- in solution.

8 0

3 years ago

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Last question for this subject- 50 POINTS!!!

Anna11 [10]

Answer: Chemical and Potential Energy

Explanation: Im pretty sure that is it i know it is Chemical and Potential Good Luck Hope I helped. =)