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Alecsey [184]
3 years ago
10

Which phrase best to find a star system

Chemistry
1 answer:
Paladinen [302]3 years ago
6 0

Assuming the answers are:

a group of hundreds of stars a group of two or more stars

a group of stars that formed around the same time

a group of two stars in which one star is brighter than the other

The correct answer is b:

a group of stars that formed around the same time

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The order of a reaction Z1) is the product of the powers to which the reactant concentrations are raised in the rate law. Z2) ca
irinina [24]

Explanation:

The Order of Reaction refers to the power dependence of the rate on the concentration of each reactant.

The overall order of reaction is the sum of the individual orders of reaction with respect to the reactants.

Rate = k [A]²[B]¹

In the rate law above, the rate is second order with respect to A and first order with respect to B. The overall order of reaction is a third order reaaction given as; 2+ 1 = 3

6 0
4 years ago
When an object floats in water, it displaces a volume of water that has a weight equal to the weight of the object. If a ship ha
swat32

The amount of seawater that will be displaced would be 1.3274 x 10^5  ft^3

<h3>Density and volume</h3>

Density = mass/volume.

Since a floating object displaces its own weight, a 4247 tons ship will also displace the same amount of water.

4247 tons of seawater = 3.8528 x 10^9 g

volume of 3.8528 x 10^9 g seawater = mass/density = 3.8528 x 10^9 g/1.025 = 3758829268.29 cubic centimeter.

3758829268.29 cm^3 = 132741.80 ft^3 or 1.3274 x 10^5  ft^3

More on density can be found here: brainly.com/question/15164682

#SPJ1

6 0
3 years ago
Someone do 5 plss:)))​
eduard

Answer: The answer is B

Explanation: Looking at the table given, the more wire loops you put on the nail, the more paperclips that it can hold. Meaning the electromagnet gets stronger the more loops you put on the nail

5 0
3 years ago
An electron in an atom is known to be in a state with magnetic quantum number ml=−1
Ulleksa [173]

Explanation:

It is known that the maximum value of ml is equal to the vale of l. But the minimum value of n is as follows.

                    n = l + 1

where,     n = principle quantum number

                l = azimuthal quantum number

Values of n can be 1, 2, 3, 4 and so on. Whereas the values of l can be 0, 1, 2, 3, and so on.

Also, "m" is known as magnetic quantum number whose values can be equal to -l and +l.

So, when n = 1 then l = 0 and m = 0.

When n = 2 then l = 1 and values of m will be equal to -1, 0, +1. As it is given that the magnetic quantum number ml = -1. Hence, it is only possible when n = 2.

Thus, we can conclude that the smallest possible value of the principal quantum number n of the state is 2.

5 0
3 years ago
The empirical formula that contains 120 g of carbon and 30.3 g of hydrogen
hoa [83]

Answer:

Empirical formula is CH₃.

Explanation:

Given data:

Mass of carbon = 120 g

Mass of hydrogen = 30.3 g

Empirical formula = ?

Solution:

Number of gram atoms of C = 120 g / 12 g/mol = 10

Number of gram atoms of H = 30.3 g / 1.008 g/mol = 30.06

Atomic ratio:

                   C             :            H            

                10/10          :       30.06/10

                   1              :            3.06    

C : H  = 1 : 3

Empirical formula is CH₃.

8 0
3 years ago
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