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umka2103 [35]
3 years ago
11

In order to do multiple trials of an experiment, _____. A. change your hypothesis B. do the experiment more than once C. revise

your procedure to make it better D. try the experiment using different chemicals
Chemistry
1 answer:
Arisa [49]3 years ago
8 0

B. do the experiment more than once

Explanation:

To do a multiple trials of an experiment, it is best to do the experiment more than once.

Experimental trials are mere replication of the procedures in an experiment.

  • Most hypothesis on which experiments are based must be repeatable.
  • When experiments are repeated through several trials, their accuracy is increased.
  • Multiple trials clearly makes it easy to make meaningful deductions from an experimental process.

Learn more:

Experiment brainly.com/question/5096428

#learnwithBrainly

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Drag each tile to the correct location in the Venn diagram.
notka56 [123]

Answer:

Other comparisons of the legislative process in both chambers shows that:

In both House and Senate: Committees review and mark up bills.

In the House of Representatives: Bills are introduced by the reading clerk.

In Senate: Bills can be filibustered.

In Senate: Only related amendments can be attached to bills.

In both House and Senate: Unrelated riders can be attached to bills.

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4 0
2 years ago
What does it mean if a solid is malleable?
liberstina [14]

Answer:

d

Explanation:

i think

4 0
3 years ago
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For a particular isomer of C8H18, the combustion reaction produces 5113.3 kJ of heat per mole of C8H18(g) consumed, under standa
mart [117]

Answer: The standard enthalpy of formation of this isomer of C_8H_{18}(g) is -210.9 kJ

Explanation:

The given balanced chemical reaction is,

C_8H_{18}(g)+\frac{25}{2}O_2(g)\rightarrow 8CO_2(g)+9H_2O(g)

First we have to calculate the enthalpy of formation of  C_8H_{18}.

\Delta H^o=H_f_{product}-H_f_{reactant}

\Delta H^o=[n_{CO_2}\times \Delta H_f^0_{(CO_2)}+n_{H_2O}\times \Delta H_f^0_{(H_2O)}]-[n_{O_2}\times \Delta H_f^0_{(O_2)+n_{C_8H_{18}}\times \Delta H_f^0_{(C_8H_{18})}]

where,

We are given:

\Delta H^o_f_{(CO_2(g))}=-393.5kJ/mol\\\Delta H^o_f_{(H_2O(g))}=-241.8kJ/mol\\\Delta H^o_f_{(O_2(g)))}=0kJ/mol

Putting values in above equation, we get:

-511.3kJ/mol=[(8\times -393.5)+(9\times -241.8)]-[(\frac{25}{2}\times 0)+(1\times \Delta H_f^0_{(C_8H_{18})}

\Delta H_f^0_{(C_8H_{18})}=-210.9kJ

7 0
4 years ago
Read 2 more answers
1. What is the mass of 2.65×1023 atoms of lithium? grams
masya89 [10]

Answer: 3.05 grams

Explanation:

To find the mass in grams, we need to use Avogadro's number and the molar mass of lithium.

Avogadro's number: 6.022×10²³ atoms/mol

Molar mass: 6.94 g/mol

2.65*10^2^3 atoms*\frac{mol}{6.022*10^2^3 atoms} *\frac{6.94g}{mol} =3.05 g

5 0
3 years ago
State three characteristics of matter?<br>​
BARSIC [14]

Answer:

Solid, Liquid, Gas

Explanation:

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4 years ago
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