You mix two cleaning chemicals and they start bubbling and releasing a funny smelling gas. First, run because it is poisonous! Second, was that a physical or chemical change? How do you know?

Answers

Answer 1

Answer:

it's a chemical change

Explanation:

When two different chemical substances are mixed they are no longer the same and can not be changed back so therefore it's a Chemical reaction.

Related Questions

Which metals are so reactive that they are never found as uncombined elements in nature?

A. alkaline earth metals

B. alkali metals

C. rare earth metals

D. transition metals

Answers

B

This element is rare and it reacts very quickly to other elements

Which of the following pH values represents a strong acid?

1
8
13
7

Answers

Answer:

Explanation:

acid is 0-3 lower numbers

1

1 is the ph of a strong acid learned this last year glad I could help.

Watch the video below. After the video use the text box to answer the following questions:

1. What is the difference between and autotroph and a heterotroph?

2. What is one example of an autotroph. One example of a heterotroph.

Please help the video isn't necessary for these questions :)

Answers

autotrophs are producers and they prepare their own food. heterotrophs are consumers that depend on other sources for their food.

autotroph ex. plants, algae, some types of bacteria

heterotroph ex. dogs, birds, all humans

^ , i argee with them .

Which of these can be combined to make a mixture?

a. solid and a liquid
b. two solids
c. two liquids

Answers

Two liquids is the correct answer

Answer:

Explanation:

you cant mix a rock and a rock together and expect to get a mixture

and you cant mix a rock and water and expect them to mix

so its on logical that it is two liquids

Which group of elements has the highest boiling point? * IIIa (13) IIa (2) Ia (1) IVa (14) Transition metals

Answers

Answer:

the elements that have the highest boiling is transition metals

The most useful property of metalloids is their _____.

A. stored energy which is released through combustion

B. being non-reactive with other elements

C. value when used to make precious jewelry

D. varying ability to conduct electricity

Answers

Answer:

DDDDDDDDDDDDDDDDDD

Explanation:

i just answer this it's corect trust meee

HEELLPP PLEASE IM BEGGING ILL GIVE BRAINLIEST

Vegetable soup is an example of _____________:

A. an element
B. a compound
C. a mixture
D. a chemical reaction

Answers

Answer:

Explanation:

You mix different thing together to make a new thing.

HELP ME PLEASE
T-T thanks

Answers

Answer: You Would have to .

Explanation:

What is one advantage of developing energy-efficient technologies?

Answers

Answer:

it's simple

Explanation:

For residential buildings, a whole-house approach using a cost-effectiveness criterion can result in savings of 50 percent or more in heating and cooling and 30–40 percent reductions in total energy use.

I hope you understand have a great day :3

One advantage of developing energy-efficient technologies, would be less waisted money on electricity.

explain why the sun appers to be the brightest star in the sky. relate your explanation with an example such as street lights. this is science

Answers

Answer:

The sun is a star but It is the brightest in the sky because it is the closest star to earth.

I don't know how to compare it to street lights though...

Explanation:

A tool might be made of an alloy because the alloy _____.

A. occurs naturally

B. resists rust

C. can bend easily

D. is softer

Answers

I assume the answer is: A

~Hello Wonderful Person~

Your answer is:

B. Resists rust.

A tool might be made of an alloy because the alloy resists rust.

Why?

Iron is a great building material but steel (an alloy made by adding small amounts of non-metallic carbon to iron) is stronger, harder, and rustproof. Aluminum is a very light metal but it's also very soft in its pure form.

Alloy steels have a wide range of special properties, such as hardness, toughness, corrosion resistance, magnetizability, and ductility. Nonferrous alloys, mainly copper–nickel, bronze, and aluminum alloys, are much used in the coinage.

____________________________________________________________

Hope this helps!

⊕If this answer does not answer your question or displeases you, tell me in the comments and I will try to find the right answer and replace it ASAP. Thank you.⊕

Have a good day.

How many moles of Hg are in a thermometer that contains 0.055 mL of Hg?

Answers

Answer:

745.8

Explanation:

Answer:

745.8

Explanation:

I hope this helps, and correct I mostly guaranteed is correct.

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