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Marizza181 [45]
3 years ago
12

If a 8 N force acts on a 4kg object, what is the resulting acceleration

Chemistry
1 answer:
cluponka [151]3 years ago
7 0
The answer is 2 because you have to divide these numbers.<span />
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If a scientist has a 105 mL solution of 0.08 M HCl, then to a good approximation, what will be the pH of the solution? Enter you
djyliett [7]

Answer:

5667

Explanation:

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__Ca(OH)2 + __ (NH4)2SO4 ----- &gt; ___CaSO4 + ___NH3 + __H2O<br><br> A)11<br> B)5<br> C)7<br> D)9
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There would be a 2 infront of the NH3 and and 2 Infront of the H2O
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Which correctly lists the types of matter, in terms of their atoms, in order from least tightly packed to most tightly packed? s
SSSSS [86.1K]

Answer:

Gas, Liquid, Solid.

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4 0
3 years ago
g A laboratory analysis of an unknown compound found the following composition: C 75.68% ; H 8.80% ; O 15.52%. What is the empir
sammy [17]

Answer:

THE EMPIRICAL FORMULA FOR THE UNKNOWN COMPOUND IS C7H9O

Explanation:

The empirical formula for the unknown compound can be obtained by following the processes below:

1 . Write out the percentage composition of the individual elements in the compound

C = 75.68 %

H = 8.80 %

O = 15.52 %

2. Divide the percentage composition by the atomic masses of the elements

C = 75 .68 / 12 = 6.3066

H = 8.80 / 1 = 8.8000

O = 15.52 / 16 = 0.9700

3. Divide the individual results by the lowest values

C = 6.3066 / 0.9700 = 6.5016

H = 8.8000 / 0.9700 = 9.0722

O = 0.9700 / 0.9700 = 1

4. Round up the values to the whole number

C = 7

H = 9

O = 1

5 Write out the empirical formula for the compound

C7H90

In conclusion, the empirical formula for the unknown compound is therefore C7H9O

7 0
3 years ago
When might a theory be changed
son4ous [18]
What are the answer choices?
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