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Lady bird [3.3K]
3 years ago
9

1. explain how u would test the presence of oxygen and hydrogen gases

Chemistry
1 answer:
artcher [175]3 years ago
6 0
Hi

sorry

i don’t know but maybe next time
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What is the mass of 0.595 mol of the element potassium (K)?Answer in units of g.
oksano4ka [1.4K]

Answer:

2.33 *10^1 g

Explanation:

.595 mol *39.0983 g/1 mol = 23.2634 > 2.33 *10^1 g

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3 years ago
A small block of solid aluminum is removed from a freezer and heated from -5C to 5C in 5 minutes using a hot plate. The hot plat
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In the United States, volume of irrigation water is usually expressed in acre-feet. One acre-foot is a volume of water sufficien
gavmur [86]

Answer:

a) V = 1.542 E11 ft³

b) V = 4367011968 m³

c) V = 1.1535 E12 us gal

Explanation:

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⇒ Vacre-foot = 66ft*660ft*1ft = 43560 ft³

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a)  V = 3.54 E6 acre-feet * ( 43560 ft³ / acre-foot ) = 1.542 E11 ft³

b) V = 1.542 E11 ft³ * ( 0.02832m³ / ft³ ) = 4367011968 m³

c) V = 1.542 E11 ft³ * ( 7.48052 us gal/ft³ ) = 1.1535 E12 us gal

6 0
4 years ago
New substances formed during a chemical reaction are indicated -
Darya [45]

Answer:

on the right side of the equation and are called products

Explanation:

Reactants are on the left side of the equation. When reactants react, they give products.

Products formed are at the right side of the equation.

They are directed as reactant to product using an arrow pointing towards the products.

New substances formed are called products. Several By-Products can also be formed . They are also on the right hand side.

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A rock has a mass of 127 grams and displaces 32.1 mL of water. what is the density of the rock?
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Answer:

3.96 g/cm^3

Explanation:

5 0
4 years ago
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