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mestny [16]
3 years ago
12

According to Newton's first law of motion what is required to make an object at rest move

Chemistry
2 answers:
yanalaym [24]3 years ago
8 0
<span>An object at rest will stay at rest unless acted upon by a unbalanced force. 

</span>
adoni [48]3 years ago
6 0
An unbalanced force makes an object at rest move
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An organ is a part of the body that carries out its main function. Most organs are made out of tissues.

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2 years ago
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What happens when the calcium burns in the oxygen. write the chemical reaction​
Valentin [98]

Answer:

Calcium can be ignited and will when burning react with both oxygen and nitrogen forming calcium oxide, CaO, and calcium nitride, Ca3N2.

3 0
2 years ago
A 3.4 g sample of sodium hydrogen carbonate is added to a solution of acetic acid weighing 10.9 g. The two substances react, rel
natima [27]

Answer: 2.7 grams

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

NaHCO_3(aq)+CH_3COOH(aq)\rightarrow CH_3COONa(aq)+H_2O(l)+CO_2(g)

Given: mass of sodium hydrogen carbonate = 3.4 g

mass of acetic acid = 10.9 g

Mass of reactants = mass  of sodium hydrogen carbonate+ mass of acetic acid = 3.4 + 10.9= 14.3 g

Mass of reactants = Mass of products in reaction vessel + mass of carbon dioxide (as it escapes)

Mass of  carbon dioxide = 14.3 - 11.6 =2.7 g

Thus the mass of carbon dioxide released during the reaction is 2.7 grams.

7 0
3 years ago
How is atomic number and mass related to protons, neutrons, &amp; electrons?
artcher [175]
The atomic number is the numbers of protons

6 0
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