3 years ago

What is the answer I need help bad

Chemistry

1 answer:

Thepotemich [5.8K]3 years ago

8 0

Rock formed by heat and pressure

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A reaction that occurs in which water is removed from the reactant is best described as what reaction

Anvisha [2.4K]

Answer:

A condensation reaction

Explanation:

it is also called a dehydration reaction

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3 years ago

Metal plating is done by passing current through a metal solution. For example, an item can become gold plated by attaching the

Norma-Jean [14]

Answer:

9.18g

Explanation:

Step 1: Write the reduction half-reaction

Au³⁺(aq) + 3 e⁻ ⇒ Au(s)

Step 2: Calculate the mass of gold is produced when 15.0A of current are passed through a gold solution for 15.0min

We will use the following relationships:

1 min = 60 s

1 A = 1 C/s

1 mole of electrons has a charge of 96486 C (Faraday's constant).

1 mole of Au is produced when 3 moles of electrons circulate.

The molar mass of Au is 196.97 g/mol.

The mass of gold produced is:

$15.0 min \times \frac{60s}{1 min} \times \frac{15.0C}{1s} \times \frac{1 mol e^{-} }{96486C} \times \frac{1molAu}{3 mol e^{-} } \times \frac{196.97gAu}{1molAu} = 9.18gAu$

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3 years ago

write both he full balanced ionic equation for the following reaction and the balanced net ionic equation. What are the specter

Nonamiya [84]

A) 3AgNO3 + GaCl3 --> 3AgCl + Ga(NO3)3
b) 3Ag(+) + 3NO3(-) + Ga(3+) + 3Cl(-) --> 3AgCl(s) + Ga(3+) + 3NO3(-)
c) 3Ag(+) + 3Cl(-) --> 3AgCl(s)
d) Ga(3+), 3NO3(-)

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3 years ago

The ability to do work is..... matter energy molecules

abruzzese [7]

Answer:

energy

energy is the reason why people can do things

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3 years ago

2.17E-3 g / 5.022E4 mL = ____g/mL

Yanka [14]

Answer:

4.321 x 10^-8

Explanation:

2.17 x 10^-3 = 0.00217 g

5.022 x 10^4 = 50220 mL

0.00217/ 50220 = 0.0000004320987

4.321 x 10^-8

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4 years ago