2 years ago

Hello there

Chemistry

2 answers:

nydimaria [60]2 years ago

8 0

The answer is question 3! remember, density= mass/volume so density = 80 grams/10 mL

Mumz [18]2 years ago

6 0

The answer is the third one because density is mass divided by volume so 80 divided by 10 is 8

You might be interested in

Burning charocal is that physical or chemical

Arlecino [84]

Burning charcoal is a chemical reaction called combustion

6 0

3 years ago

Imperial shrimp attach themselves to sea cucumbers for transportation. The interaction saves energy and improves food availabili

Sveta_85 [38]

Answer:

Explanation:

commensalism

4 0

3 years ago

What simple machine is a ramp hammer and a knife

Elena L [17]

Answer:

lever Levers

Types of lever

Levers are all around us. Hammers, axes, tongs, knives, screwdrivers, wrenches, scissors—all these things contain levers.

Explanation:

8 0

3 years ago

Someone please help me with this. Thanks!

stira [4]

Answer:

Kim kim kim kim kim ath marath enthe kantha

Explanation:

Ninn chumbenem enne thellerthii.

Nin vadabell enne shwasichu!

8 0

2 years ago

Solid calcium carbonate decomposes to produce solid calcium oxide and carbon dioxide gas. Express your answer as a chemical equa

Gwar [14]

Answer:

$CaCO_3(s)\rightarrow CaO(s)+CO_2(g)$

Explanation:

Hello!

In this case, when solid calcium carbonate, CaCO3 (s), is decomposed by the action of thermal energy (heat), solid calcium oxide, CaO (s) and carbon dioxide gas, CO2 (g) are yielded via the following reaction:

$CaCO_3\rightarrow CaO+CO_2$

However, since calcium carbonate is solid as well as calcium oxide and carbon dioxide is given off as a gas, we write:

$CaCO_3(s)\rightarrow CaO(s)+CO_2(g)$

Which also balanced.

Best regards!

8 0

2 years ago