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3 years ago

How do I do thiis question?

Chemistry

1 answer:

Komok [63]3 years ago

7 0

CO₂ ₍g₎ + 2H₂ ₍g₎ ---------> CH₃OH ₍g₎

So in order to answer this question you have to have a good understanding of moles in an equation. We know that mole often exist in ratios that is denoted by the value used to balance the equation ('mole ratio'). Thus from the equation we can tell that H₂ has twice the amount of moles CO₂ or CH₃OH does. As such:

- reactant with most moles is H₂
- raectant with least moles is CO₂
- the limiting reagent is H₂

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A solid keeps its shape due to which of the following factors? (3 points)

algol [13]

Answer: Attractive forces between particels

Explanation:

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3 years ago

A liquid has an empirical formula CCl2, and a boiling point of 1 21 oC. When vapourised, the gaseous compound has a density of 4

Darya [45]

Based on the data given, the molar mass of the gas is 165.5 g/mol while the molecular weight of the gas is 165.5 amu

<h3>How can molar mass of a gas be obtained from density, temperature and pressure?</h3>

The molar mass of a gas can be obtained from density, temperature and pressure using the formula below:

molar mass = density × molar gas constant × temperature/pressure

Molar gas constant, R = R = 0.082 L.atm/mol/K.

Temperature = 150 °C = 423 K

Pressure = 785 torr = 1.033 atm

density = 4.93 g/L

molar mass of gas = 4.93 × 0.082 × 423/1.033

molar mass of gas = 165.5 g/mol

Then, molecular weight of the gas = 165.5 amu

Therefore, the molar mass of the gas is 165.5 g/mol while the molecular weight of the gas is 165.5 amu

Learn more about molar mass of a gas at: brainly.com/question/26215522

6 0

2 years ago

Im not doing the math-

BigorU [14]

The average speed of the blocks are 0.36 m/s.
Explanation:
Average speed is defined as the ratio of distance covered per unit time. So if it is said that blocks are pulled to 0.9 m in the right side. This means the blocks cover a distance of 0.9 m from the origin and that distance is covered in 2.5 s. Thus, the average speed can be calculated from the change in speed with respect to time. As at time t = 0 , the speed is also zero, and at time t = 2.5 s , the speed will be
Since, in this case, the speed is equal to the average speed of blocks. So the average speed of the blocks will be 0.36 m/s.

3 0

3 years ago

Read 2 more answers

The image shows two opposite forces acting on a rolling cart, what can we say is true about the effect on the forces on the cart

bonufazy [111]

Question options:

1. It cannot be determined without knowing which man is stronger.

2. The forces are unbalanced, and net force on the cart moves it to the left.

3. It cannot be determined because one man is taller than the other.

4. The forces are unbalanced, and net force on the cart moves it to the right.

Answer:

<em>2.The forces are unbalanced, and net force on the cart moves it to the left.</em>

Explanation:

In the image, two opposite forces acting on a rolling cart. The person on the right side exerting more force (50N) toward the left than the person on the left side (10N). The more the force applying on the object, it will drag on the followed direction.

It is because the person on the right side exerting force (50N) toward the left, rolling cart will moves to the left.

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3 years ago

What kind of mixture is formed by stirring a small amount of table salt into water until the salt all dissolves?

ycow [4]

A solution

Hope this helps!

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3 years ago