Life is possible on earth because of suitable air water and temperatures true or false

Answers

Answer 1

Answer:

Answer:

TRUE

Explanation:

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A chemical reaction in which compounds break up into simpler constituents is a _______ reaction. A. double replacementB. substitutionC. decompositionD. combination
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common state of matter on earth for tin ,scientist related to tin and color,texture,hardness,smell of tin please help really important please i will be very thank full please

5. Given the following equation: 8 Fe S8 8 Fes, what mass of iron is needed to react with16.0 grams of sulfur? How many grams of FeS are produced?

Answers

18 grams of fes is produced

What else is produced when sodium carbonate decomposes? Na2CO3 Na2O +

Answers

Na2CO3 Na2O +CO2 CO2 is the answer

When a single compound breaks down into two or more compounds or elements in a chemical reaction then it is known as decomposition reaction.

The chemical symbol for sodium carbonate is $Na_2CO_3$ .

The decomposition of sodium carbonate is:

$Na_2CO_3\rightarrow Na_2O+ CO_2$

The decomposition of sodium bicarbonate, $Na_2CO_3$ will result in the formation of sodium oxide, $Na_2O$ and carbon dioxide, $CO_2$ .

Hence, carbon dioxide, $CO_2$ will produce with sodium oxide, $Na_2O$ on decomposition of $Na_2CO_3$ .

What unit is used to measure weighted average atomic mass?a. amu
b. gram
c. angstrom
d. nanogram

Answers

The unit used to measure weighted average atomic mass is he dalton or amu. So A. Hope this helped :D

A. Amu
Stands for atomic mass unit.

If a sample of a gas at 25.2oC has a volume of 536 mL at 0.838 atm, what will its volume be if the pressure is increased to 0.937 atm? A) 477.78 mL B) 563.21 mL C) 503.88 mL D) 613.52 mL

Answers

Final answer:

The volume of the gas sample would be 477.78 mL.

Explanation:

The student is asking about the change in volume of a gas sample when the pressure is increased. This can be solved using Boyle's law, which states that the pressure and volume of a gas are inversely proportional at constant temperature. The equation for Boyle's law is: P1 * V1 = P2 * V2

We are given the initial conditions: T1 = 25.2°C, V1 = 536 mL, and P1 = 0.838 atm. We need to find V2 when P2 = 0.937 atm. Using the Boyle's law equation, the volume can be calculated as: V2 = (P1 * V1) / P2

Plugging in the values, we get: V2 = (0.838 atm * 536 mL) / 0.937 atm = 477.78 mL

Therefore, the volume of the gas sample would be 477.78 mL (Option A) when the pressure is increased to 0.937 atm.

Learn more about Boyle's law here:

brainly.com/question/21184611

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Question: Use the table to compare the solubilities of substances. Check all of the boxes that apply.Answers:
Aspirin is less soluble than table salt, but more soluble than carbon dioxide.
A saturated solution of table sugar is more concentrated than a saturated solution of table salt.

Answers

Answer:

1,3

Explanation:

got it right on assignment

Answer: A, C and D

Explanation: For me it was D a well as of edge 2022. Hope this help!

Which balanced equation represents a chemical change?(1) H2O(l) + energy → H2O(g)
(2) 2H2O(l) + energy → 2H2(g) + O2(g)
(3) H2O(l) → H2O(s) + energy
(4) H2O(g) → H2O(l) + energy

Answers

The answer is B because energy was added to 2H2O in order to produce a chemical change of 2H2 and 02 seperately.

Final answer:

The balanced equation that represents a chemical change is 2H2O(l) + energy → 2H2(g) + O2(g).

Explanation:

The balanced equation that represents a chemical change is (2) 2H2O(l) + energy → 2H2(g) + O2(g). In this equation, we see the reactant, water (H2O), being converted into two separate products, hydrogen gas (H2) and oxygen gas (O2), with the addition of energy. This indicates a chemical change taking place where new substances are formed.