All categories

4 years ago

How does Nathan’s hypothesis lead to new investigations

Chemistry

2 answers:

Simora [160]4 years ago

8 0

Answer:

A) The data to support his hypothesis, so he should investigate if the same change happens in the density of solid water.

Brilliant_brown [7]4 years ago

7 0

Answer:

A. The data to support his hypothesis, so he should investigate if the same change happens in the density of solid water.

Explanation:

You might be interested in

What mass of carbon dioxide is produced from the complete combustion of 6.00×10−3 g of methane?

Crazy boy [7]

The answer for the following problem is explained below.

<u><em>Therefore 16.5 × 10^-3 grams of carbon dioxide is produced from the complete combustion.</em></u>

Explanation:

Given:

mass of methane = 6.00 × 10^-3 grams

$CH_{4}$ + $O_{2}$ → $CO_{2}$ + $H_{2}O$

Firstly balance the following equation:

Before balancing the equation:

$CH_{4} + O_{2}$ → $CO_{2} + H_{2} O$

After balancing the equation:

$CH_{4} + 2O_{2}$ → $CO_{2} + 2 H_{2} O$

where;

$CH_{4}$ represents methane molecule

$O_{2}$ represents oxygen molecule

$CO_{2}$ represents carbon dioxide molecule

$H_{2}O$ represents water molecule

$CH_{4}$ +2 $O_{2}$ → $CO_{2}$ + 2 $H_{2}O$

16 grams of methane → 44 grams of carbon dioxide

6 × 10^-3 grams of methane → ?

= $\frac{44*6.00*10^{-3} }{16}$

= 16.5 × 10^-3 grams of carbon dioxide is produced from the complete combustion.

<u><em>Therefore 16.5 × 10^-3 grams of carbon dioxide is produced from the complete combustion.</em></u>

5 0

3 years ago

The electrolysis of water has the equation 2H2O (l) → 2H2 (g) + O2 (g). What type of reaction is this?

Sonja [21]

<u>Answer:</u> The correct option is C) decomposition

<u>Explanation:</u>

Single displacement reaction is defined as the reaction where a more reactive element displaces a less reactive element from its salt solution.

$AX+B\rightarrow BX+A$

Element B is more reactive than element A

Double displacement reaction is defined as the reaction where an exchange of ions takes place in a solution

$AX+BY\rightarrow AY+BX$

Decomposition reaction is defined as the reaction where a single large chemical species breaks down into two or more smaller chemical species.

$AB\rightarrow A+B$

Synthesis reaction is defined as the reaction where two or more smaller chemical species combine together in their elemental state to form a single large chemical species.

$A+B\rightarrow AB$

For the given chemical reaction:

$2H_2O(l)\rightarrow 2H_2(g)+O_2(g)$

Here, water is breaking down into two smaller species of oxygen and hydrogen gas. Thus, it is a decomposition reaction.

Hence, the correct option is C) decomposition

4 0

3 years ago

1- A sample of gas is in a 3.00 L contain at a pressure of 740.0 mmHg. What is the new pressure of the sample if the container's

inna [77]

Considering the Boyle's law, the new pressure of the sample is 1,776 mmHg.

<h3>What is Boyle's law</h3>

Boyle's law establishes the relationship between the pressure and the volume of a gas when the temperature is constant.

Boyle's law states that the volume occupied by a given mass of gas at constant temperature is inversely proportional to the pressure. This means that if the pressure increases, the volume decreases, while if the pressure decreases, the volume increases.

Boyle's law is expressed mathematically as:

P×V=k

Now it is possible to assume that you have a certain volume of gas V1 which is at a pressure P1 at the beginning of the experiment. If you vary the volume of gas to a new value V2, then the pressure will change to P2, and the following will be true:

P1×V1=P2×V2

<h3>New pressure</h3>

In this case, you know:

P1= 740 mmHg
V1= 3 L
P2= ?
V2= 1.25 L

Replacing in Boyle's law:

740 mmHg× 3 L=P2× 1.25 L

Solving:

P2= (740 mmHg× 3 L) ÷ 1.25 L

P2= 1,776 mmHg

Finally, the new pressure of the sample is 1,776 mmHg.

Learn more about Boyle's law:

brainly.com/question/4147359

#SPJ1

7 0

2 years ago

Read 2 more answers

4.35x10-4 to decimal form

Zarrin [17]

Answer:

0.000435

Explanation:

Because it is 10-4, you move the decimal place to the left four times. this will result in 0.000435.

7 0

3 years ago

Awnser all of them if you can its really EASY im feelin generous today 30 pts

Aneli [31]

Answer: 1. Synthetic Substance or Synthetic compound 2. Oil 3. Biofuels 4. Salt and Sugar 5. medicine 6. Synthetic 7. Background Knowledge and Visualizing

Explanation: Hope this helps! Good luck!

5 0

3 years ago

Read 2 more answers