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3 years ago

Why use fire in the industrial revolution? HELP PLEASE❤️❤️❤️

Chemistry

1 answer:

REY [17]3 years ago

7 0

Answer:

Some of the most important American inventions during the Industrial Revolution included the telegraph, the sewing machine, telephone, cotton gin, the practical light bulb, and vulcanized rubber. Manchester, England was the center of the textile industry during the Industrial Revolution.

Explanation:

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Baking powder, baking soda, and creme of tartar are three substances that have similar properties. Explain what these three subs

jarptica [38.1K]

they are all catalysts

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2 years ago

In the following reaction, how many grams of NaBr will produce 244 grams of NaNO3? Pb(NO3)2(aq) 2 NaBr(aq) PbBr2(s) 2 NaNO3(aq)

lyudmila [28]

Answer : The mass of $NaBr$ is, 295.323 grams

Solution :

First we have to calculate the moles of $NaNO_3$ .

$\text{Moles of }NaNO_3=\frac{\text{Mass of }NaNO_3}{\text{Molar mass of }NaNO_3}=\frac{244g}{85g/mole}=2.87moles$

Now we have to calculate the moles of NaBr.

The balanced chemical reaction is,

$Pb(NO_3)_2(aq)+2NaBr(aq)\rightarrow PbBr_2(s)+2NaNO_3(aq)$

From the balanced reaction we conclude that

As, 2 moles of $NaNO_3$ react with 2 moles of $NaBr$

So, 2.87 moles of $NaNO_3$ react with 2.87 moles of $NaBr$

Now we have to calculate the mass of NaBr.

$\text{Mass of }NaBr=\text{Moles of }NaBr\times \text{Molar mass of }NaBr$

$\text{Mass of }NaBr=(2.87mole)\times (102.9g/mole)=295.323g$

Therefore, the mass mass of $NaBr$ is, 295.323 grams

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2 years ago

Which element when combined with fluorine would form a ionic compound

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2 years ago

Identify each of the following as a representative element or a transition element:

charle [14.2K]

The correct answer is B. Platinum is the transition element among the choices. The elements belonging to this group are those having a partially filled d or f subshell. It usually refers to the d-block transition elements of the periodic table.

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3 years ago

A student makes the following two claims about chemical reactions:

Svet_ta [14]

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3 years ago