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3 years ago

If 1.2 kilograms of rust forms on a bridge in 5 days, what should be the rate of reaction in grams per hour?

1 answer:

8 0

We have 1.2 kg of rust whithin 5 days.
the rate of reaction in grams per hour:

1.2 kg/5 day * 1000 g/kg * 1 day/24 hours = 10.0 grams/hour

hope this help

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What coefficients would balance the following equation?<br><br> __C2H6 + __O2 → __CO2 + __H2O

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2C2H6 + 7O2 → 4CO2 + 6H2O

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2 years ago

Which of the following is the name of the process scientists use to gain

kobusy [5.1K]

Scientific method

Explanation:

The scientific method is the name of the process scientists use to gain knowledge about the physical world.

The scientific method is a systematic approach into the study of nature. It follows the following processes:

Detailed observation
Asking of question
Formulation of hypothesis
Experimentation
Analysis and interpretation
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3 years ago

Which of the following equations has correct formulas and also is a balanced equation?

aliya0001 [1]

Answer : The correct option is, (B)

Explanation :

Balance equation : Balanced equation are those equation in which the number of atoms of each element and the total charge must be same on products side and reactants side.

In the given options, only option (B) equation has correct formula and also a balanced equation.

$2Be+O_2\rightarrow 2BeO$

while the other options has incorrect formulas and also an unbalanced equations.

The correct equation for option A is, $CaCO_3\rightarrow CaO+CO_2$

The correct equation for option C is, $2Mg+O_2\rightarrow 2MgO$

The correct equation for option D is, $KCl+HNO_3\rightarrow HCl+KNO_3$

Hence, the correct answer is, (B) $2Be+O_2\rightarrow 2BeO$

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3 years ago

How does fabric softener affect the flammability of clothes?

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It makes your clothes smell great

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3 years ago

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The image below shows the Lake Mead Recreation Area,

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Answer:

D. Many, many years of deposition

Explanation:

The layers of the rocks in one region of the parks are smooth and distinct, which are evidence of many, many years of deposition.

The layers on the rocks are because of different deposition of sediments. Different sediments deposited over the rocks through wind, water and ice over the ages.

Hence, the correct answer is D.

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3 years ago