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sammy [17]
3 years ago
6

Describe the direction in which each object will accelerate. If the object won’t accelerate, write “no acceleration.” Explain wh

at might be happening to each object in terms of its overall motion.

Chemistry
1 answer:
Stels [109]3 years ago
4 0

Answer:

unbalanced force

Explanation:

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Vadim26 [7]

the answer is A bruddah.

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What elements make up proteins?
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Proteins are organic molecules composed of Carbon, Hydrogen, Oxygen and Nitrogen.
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Will carbon and hydrogen atoms most likely form an ionic bond or a covalent bond?
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In most cases, carbon shares electrons with other atoms (usual valence of 4). This is because carbon typically bonds with elements which have a similar electronegativity. Examples of covalent bonds formed by carbon include carbon-carbon, carbon-hydrogen, and carbon-oxygen bonds

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The specific heat of gold is 0.126 J/gºC. How much energy is released
Schach [20]

Explanation:

Specific heat capacity of gold (S)

= 0.126 J /kg°C

mass (m) = 350 g = 0.35 kg

difference in temperature (dt)

= 88.5°C - 24.6°C

= 63.9° C

Now

Energy released (Q)

= m*s*dt

= 0.35 * 0.126 * 63.9

= 2.81799 Joule

Hope it will help :)

3 0
3 years ago
gA scientist is trying to discover information about an unknown metal in a compound. The formula for the compound is believed to
Hitman42 [59]

Solution :

It is given that :

The formula of the compound = $XBr_3$

And that 4.70 g of the sample contains $4.834 \times 10^{-2}$ mol of Br.

It means that :

1 mol of $XBr_3$ contains = 3 mol of Br

∴ 3 mol of $Br^-$ contain in 1 mol of $XBr_3$

$4.834 \times 10^{-2}$ mol of $Br^-$  contains $1.576 \times 10^{-2}$ mol of $XBr_3$

Thus the mol of $XBr_3$ = $1.576 \times 10^{-2}$ mol

The given mass is = 4.700 g

Therefore, the $\text{molar mass}$ of $XBr_3$  $=\frac{\text{mass}}{\text{mol}}$

                                                           $=\frac{4.700 \ g}{1.576 \times 10^{-2} \ mol}$

                                                          = 298.4 g/mol

So $\text{molar mass}$ of $XBr_3$ = $\text{molar mass}$ of X + 3 x $\text{molar mass}$ of Br

      298.4 g/mol = $\text{molar mass}$ of X + 3 x 79.90 g/mol

      298.4 g/mol = $\text{molar mass}$ of X + 239.7 g/mol

       $\text{molar mass}$ of X = 58.71 g/mol    (since 1 amu = 1 g/mol)      

Therefore the atomic mass of the unknown metal = 58.71 g/mol

So the unknown meta is Nickel.

3 0
3 years ago
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