2 years ago

Light travels at a speed of 3.00 × 1010 cm/sec. What is the speed of light in kilometers/hour?

Chemistry

1 answer:

snow_lady [41]2 years ago

4 0

Answer:

300,000km is the speed of light

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Questions on maths mechanics

Sav [38]

Answer:

I don't understand your questions

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3 years ago

A bond between a nonmetal and a nonmetal is called a(n)

Pani-rosa [81]

Answer:

answer: B

Explanation:

becaucse it is B

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2 years ago

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Libby is doing experiments with two different magnets. Magnet A can only attract thumbtacks that are up to 1 inch away from it.

castortr0y [4]

magnet B has a greater magnetic pull than magnet A

6 0

3 years ago

In the single displacement reaction of HCl and magnesium, how many grams of magnesium chloride would be produced if 1.05g of mag

iren [92.7K]

Answer:

4.16g of MgCl2

Explanation:

First, let us generate a balanced equation for the reaction:

Mg + 2HCl —> MgCl2 + H2

Molar Mass of Mg = 24g/mol

Molar Mass of MgCl2 = 24 + (2x35.5) = 24 + 71 = 95g

From the equation,

24g of Mg produced 95g of MgCl2.

Therefore, 1.05g of Mg will produce = (1.05x95)/24 = 4.16g of MgCl2

5 0

3 years ago

Determine the type of reaction for the following equation:<br> C2H6 + O2à H2O + CO2

valkas [14]

Answer:

The type of reaction for the following equation is combustion equation.

Explanation:

Combustion reaction is defined as the chemical reaction in which a hydrocarbon reacts with oxygen gas to produce carbon dioxide gas and water molecule.

$\text{hydrocarbon}+O_2\rightarrow CO_2+H_2O$

The reaction given to us:

$C_2H_6 + \frac{7}{2}O_2\rightarrow 3H_2O + 2CO_2$

When 1 mole of ethane reacts with 7/2 moles of oxygen gas it gives 3 moles of water and 2 moles of carbon dioxide gas.

The type of reaction for the following equation is combustion equation.

4 0

2 years ago