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3 years ago

Label the picture, please

Chemistry

2 answers:

DochEvi [55]3 years ago

4 0

Answer:

(in the pic above)

Explanation:

P= product

R= reactant

S= subscript

C= coefficient

Y= yields

shutvik [7]3 years ago

3 0

Answer:

sorry BUT I need points

Explanation:

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:Why is a fuse used as a safety feature in a circuit

julia-pushkina [17]

Explanation:

The fuse breaks the circuit if a fault in an appliance causes too much current to flow. This protects the wiring and the appliance if something goes wrong. The fuse contains a piece of wire that melts easily.

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3 years ago

How many grams are in 0.220 mol of Ne?

kumpel [21]

Answer:

4.44 g Ne

General Formulas and Concepts:

Chemistry - Atomic Structure

Reading a Periodic Table
Using Dimensional Analysis

Explanation:

Step 1: Define

0.220 mol Ne

Step 2: Identify Conversions

Molar Mass of Ne - 20.18 g/mol

Step 3: Convert

$0.220 \ mol \ Ne(\frac{20.18 \ g \ Ne}{1 \ mol \ Ne} )$ = 4.4396 g Ne

Step 4: Check

We are given 3 sig figs. Follow sig fig rules and round.

4.4396 g Ne ≈ 4.44 g Ne

3 0

3 years ago

Read 2 more answers

What is the specific heat of ethanol if 4650 j are required to raise the temperature of 250.0g of ethanol from 22.0oc to 29.6 de

Alchen [17]

Answer:

$C=2.45\frac{J}{g\°C}$

Explanation:

Hello there!

In this case, since the thermodynamic definition of heat in terms of mass, specific heat and temperatures is given by:

$Q=mC(T_2-T_1)$

We are to calculate the specific heat of the ethanol as shown below:

$C=\frac{Q}{m(T_2-T_1)}$

Thus, by plugging it the given data we can obtain:

$C=\frac{4650J}{250.0g(29.6-22.00\°C)} \\\\C=2.45\frac{J}{g\°C}$

Regards!

5 0

3 years ago

I don't know how to do this?helpppp!

Charra [1.4K]

Joules? i m not sure about this E Q U A S I O N

4 0

3 years ago

If an insufficient amount of liquid unknown had been used, how would this have effected the value of the experimental molar mass

Effectus [21]

When the unknown liquid is heated and turned into vapor, it will not occupy the entire container. The volume in the molar mass (nRT)/PV will be greater than the actually volume of the unknown, and the calculated molar mass will be less than the actual molar mass.

5 0

4 years ago