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Chemistry

2 answers:

Korolek [52]3 years ago

8 0

Isotope is the correct answer

Olenka [21]3 years ago

3 0

Answer:

Isotope

Explanation:

Isotopes are variants of a particular chemical element which differ in neutron number, and consequently in nucleon number.

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AlekseyPX

Answer:

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convection

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3 years ago

In the cathode ray experiment, the cathode ray is seen to move from the negative disk to the positive disk. What kind of subatom

Tomtit [17]

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3 years ago

A chemical reaction was used to produce 2.95 moles of copper(II) bicarbonate, Cu(HCO3)2.

BARSIC [14]

Answer:

About 547 grams.

Explanation:

We want to determine the mass of copper (II) bicarbonate produced when a reaction produces 2.95 moles of copper (II) bicarbonate.

To do so, we can use the initial value and convert it to grams using the molar mass.

Find the molar mass of copper (II) bicarbonate by summing the molar mass of each individual atom:

$\displaystyle \begin{aligned} \text{MM}_\text{Cu(HCO$_3$)$_2$} &= (63.55 + 2(1.01)+2(12.01)+6(16.00))\text{ g/mol} \\ \\ &=185.59\text{ g/mol} \end{aligned}$

Dimensional Analysis:

$\displaystyle 2.95\text{ mol Cu(HCO$_3$)$_2$}\cdot \frac{185.59 \text{ g Cu(HCO$_3$)$_2$}}{1 \text{ mol Cu(HCO$_3$)$_2$}} \Rightarrow 547 \text{ g Cu(HCO$_3$)$_2$ }$