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3 years ago

PLEASE HELP! I DONT UNDERSTAND WHAT TO DO!

Chemistry

1 answer:

goldenfox [79]3 years ago

5 0

Answer:

Na+Cl- + Ag+no3- ---> Na+No3- + Ag+Cl-

A spectator ion is an ion that exists as a reactant and a product in a chemical equation

Explanation:

When a solution of sodium hydroxide, NaOH, is mixed with hydrochloric acid, HCl, the compounds dissociate into the ions Na+, OH-, H+ and Cl-. The hydrogen and hydroxide ions react to form water, but the sodium and chlorine ions stay in solution unchanged.

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What carries the useful energy of a lamp to its surroundings?

serious [3.7K]

A. The potential energy from the batteries in the torch is transferred to the filament of the bulb. The energy is transferred to the surroundings as thermal energy and light. Most of the energy is transferred as thermal energy which is not useful and only some of the energy is transferred as light

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3 years ago

PLZ HELP! FAST! Extreme fast! PLZ! DUE TOMORROW! Please answer ASAP!

riadik2000 [5.3K]

29-23 is 6, so 6 degrees

3 0

4 years ago

Read 2 more answers

A liquid that occupies a volume of 0.820 L has a mass of 2.56 kg.

user100 [1]

Answer:

The density of this liquid is 0.320 kg/L

Explanation:

Given:

Volume of the Liquid = 0.820 L

Mass of the liquid = 2.56 kg.

To Find:

The density of the liquid in kg/L

Solution:

Density is the mass occupied by the substance in unit volume. This density is essential determining whether the substance floats or sinks. Greek letter(rho) is used to denote density

The equation of for density is

$Density = \frac{mass}{volume}$

$\rho = \frac{m}{v}$

where m is the mass

v is the volume

On substituting the given values

$\rho = \frac{0.820 }{2.56}$

$\rho = 0.320 kg/L$

7 0

3 years ago

Convert 100mL to L. Show your work to receive full credit.

Ilya [14]

Answer:

100 ml = 0.1 L

I divided 100 by 1000 because 1000ml = 1L

3 0

3 years ago

I have asked this question before but I was not clear enough. I want to prepare a 37% w/w solution (in water)of sulfuric acid fr

Zarrin [17]

Actually you have now a roport of 4:96 water to acid . All you have to do is add water to bring the raport to 37 acid and 63 water.
You need to have 0.5L mixture so
you have to have 18.5acid and the rest water 31.5
so for 18.5 acid you need to add 192.7 ml 96% acid and the rest water

4 0

4 years ago