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4 years ago

Select the correct answer from each drop-down menu.

Chemistry

1 answer:

suter [353]4 years ago

4 0

Answer:

"The equation is unbalanced because the number of hydrogen atoms and oxygen is not equal in the reactants and in the products."

Explanation:

Hope this helps! :)

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How many states are there in the world?

Tems11 [23]

There are 195 countries in the world today. This total comprises 193 countries that are member states of the United Nations and 2 countries that are non-member observer states: the Holy See and the State of Palestine.

There are 50 US states.

The United States currently administers 16 territories as insular areas:

American Samoa.

Guam.

Northern Mariana Islands.

Puerto Rico.

U.S. Virgin Islands.

This information is from three sources. United Nations, Wikipedia, and United States and their satellite states aka countries.

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3 years ago

Y’all pleasee answer these

AlladinOne [14]

1. b 2. B 3.c 4.a 5.a

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3 years ago

9. Carbon-14 has a half-life of 5,730 years. How many years have passed after 3<br> half-lives?

ella [17]

Answer:

120 gram sample of a radioactive element, how many grams of that element will be left after 3 half-lives have passed? If you have a 300

Explanation:

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3 years ago

A solution was prepared by dissolving 185.0g of KCl in 305g of water

Anna11 [10]

Answer:

The substance formed is KCl aqueous

Explanation:

When a salt is added water to it it changes from a solid to be aqueous

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3 years ago

Write at least 5 different sentences each adjective describes: crystal_____, soluble_____, hard_________, solid_______,

rewona [7]

Answer:

Definite shape, definite volume, definite melting point, high density, incompressibility, and low rate of diffusion.
The most obvious physical properties of a liquid are its retention of volume and its conformation to the shape of its container.
When a liquid substance is poured into a vessel, it takes the shape of the vessel, and, as long as the substance stays in the liquid state, it will remain inside the vessel.
There are four types of crystalline solids: ionic solids, molecular solids, network covalent solids and metallic solids.
There are two types of liquid-liquid mixtures. They are: Homogeneous Liquid-Liquid Mixture. This is a type of liquid-liquid mixture whereby the two substances mix completely to from a single substance.

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3 years ago