CHEMISTRY MIDDLE SCHOOL

When elements bond together or when bonds of compounds are broken and form a new substanceA. Chemical Change
B. Energy
C. Fireworks
D. Chemical Reaction

Answers

Answer 1
Answer: D chemical reaction

Related Questions

In your own words describe the difference between the movement of particles in liquids and the movement of particles in gases.
39. Chromium and chlorine form an ionic compound whose formula is CrCl3. The name of thiscompound isa. chromium (III) chloridec. monochromium trichlorideb. chromium chlorined. chromium(III)trichloride
WILL GIVE BRAINLIEST FOR SURE!!!1. The atomic radius increases from top to bottom because more orbitals are added as you go down a group. Atomic radius decreases from left to right because there are more protons in each element as you go left to right, increasing the attractions between the protons and electrons, pulling the electrons in closer.a. Trueb. False
Why is there so much carbon is the human body?
a solution in which 50 grams of solute is dissolved in 250 grams of solution has a concentration of what percent?

Can someone help , I don’t understand how to do this

Answers

Answer:

Sometimes reading it again will help. Sometimes it really is that simple. The information doesn’t all find its way

Ask questions. I will always do my best to explain things to students, but it helps if I know when they haven’t

Figure out the best time for you to learn. I mean the best time for you to study on your own. Are you a night owl

Take good notes. I’m not going to tell you how to take good notes – it’s different for everyone.  

Explanation:

What is the ratio of straight haired offspring to curly hair offspring?

Answers

Answer:

. If both parents have wavy hair, what is

the phenotype (and genotype) ratio for

their offspring?

A.3:1 (curly to straight)

B.All wavy haired offspring

C. 1:2:1 (curly: wavy: straight)

D.9:3:3:1

Explanation:

What information does a food web reveal that a food chain does not? A. A food web shows the actual number of joules of energy that is transferred from one trophic level to another but a food chain never does. B. A food web shows that most organisms consume and are consumed by more than one organism. C. A food web only shows a single pathway of consumption through the ecosystem. D. A food web consists of biomass pyramids but a food chain does not.

Answers

B because food web show when grass is consumed cows and horses both eat same thing with other food sources
 

Sierra did 500 J of work to move her couch. If she exerts 250 N of force on the couch, how far did she move it? (Work: W = Fd) 0.5 m 2 m 250 m 750 m'

Answers

Answer:

The answer is 2 m.

Explanation:

THE Answer IS B 2m

Explanation:

Where does the seed fit into the life cycle of a plant?

Answers

It is the beginning stage
the seed is the first part of the plant's life cycle, if you are looking for something more specific then I sadly cant answer that sorry.

Hello:) is hydrogen chloride and hydrochloride acid the same??

Answers

Answer:

No because hydrogen chloride is gas and hydrochloric acid is (as stated in the name) an acid. The formula for hydrogen chloride is HCI(g), the little g states that the compound is a gas and the formula for hydrochloric acid is HCl(aq) and the little aq means aqueous.

Answer:

no. they are not the same

Explanation: Although, they both do have the same chemical formula HCL, they differ in their states of matter. Hydrogen chloride is a gas whereas hydrochloric acid is a solution of hydrogen chloride gas and water( creates an aquaeous solution). Hydrochloric acid is highly corrossive.
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Air is a mixture whereas water is a compound explain
Which substance can not be decomposed by a chemical change?A. AmmoniaB. CarbonC. MethaneD. Water
The table shows the food choices for two species of birds. Bird Food Questor small seeds, flying insects Wood Plaxar large berries, beetles Which will most likely happen to the Questors as a result of the Wood Plaxers migrating to their habitat? A. the Questors will be forced to fly to a different habitat B. the Questors will compete with the Wood Plaxars for food resources C. the two species will coexist with no competition D. the two species will be come extinct
Which of these lists bodies in order, from CLOSEST to FURTHEST from the Earth? A) moon, sun, near edge of milky way, center of milky way B) near edge of milky way, moon, center of milky way, sun C) sun, moon, center of milky way, near edge of the milky way D) moon, sun, center of milky way, near edge of the milky way