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wariber [46]
3 years ago
9

Describe the factors that affect surface and deep water currents

Chemistry
1 answer:
olchik [2.2K]3 years ago
7 0
I’m having a hard time understanding your question
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A sample of an unknown substance is decomposed and is found to be 59% strontium (Sr), 8.0% carbon, and 33% oxygen. What is its e
sukhopar [10]

Answer:

CStO3

Explanation:

What is need to be done here is to first divide the percentage compositions by the respective atomic masses. Atomic mass of strontium is 90, that of oxygen is 16 and that of carbon is 12.

Let’s proceed with the divisions:

St = 59/90 = 0.656

O = 33/16 = 2.0625

C = 8/12 = 0.667

Now, we divide through all by the smallest answer which is 0.656:

St = 0.656/0.656 = 1

O = 2.0625/0.656 = 3.144 = 3

C = 0.667/0.656 = 1.0167 = 1

The empirical formula is thus CStO3

7 0
4 years ago
A 152 g sample of ice at –37oC is heated until it turns into liquid water at 0oC. Find the change in heat content of the system.
VladimirAG [237]

Answer:

What do you mean? The Q is a bit vague

5 0
3 years ago
Read 2 more answers
Given life’s diversity, scientists cannot say with certainty
Mandarinka [93]

Answer:

?

Explanation:

6 0
3 years ago
State the number of solutions for Matrix B. a. No Solution b. One Solution c. Infinitely Many Solutions
NISA [10]

Answer:

C. Infinitely Many Solutions

<u>Explanation:</u>

No solution case : This is the case when all given variables are not equal to any constant, for example: there is one row of zeros in matrix <em>e.g 0=3</em>. matrix B don't have any zero row. <u>So, Not True. </u>

One Solution case: This is the case when all variables are independent variables like if they are equal to some constant. <em>e.g x=1,y=2,z=4 </em>, Matrix B have more than one variable in first row due to which it made equation look like <em>x+y=-5. so matrix B can't have only one solution. </em><u>So, Not True.</u>

Infinitely Many Solutions case: when there is one or more variables which is not equal to any constant and acting as linearly dependent variable, then that matrix have infinite solutions. Matrix B have that variable which is linearly dependent as show in the attachment solution.<u> So, True.  </u>

3 0
4 years ago
A balloon with a mass of 0.020 kg is charged by contact and stuck to the ceiling. If the acceleration of gravity is 9.8 m/s/s, w
kramer

Answer:

according to newtons second law

F=ma

mass of the balloon =0.020 kg

gravity = 9.8m/8^2

force = 0.020 x 9.8

= 1.96 N

x (times)  hope it helps

4 0
3 years ago
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