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Westkost [7]
4 years ago
12

How far away is the sun? ...

Chemistry
2 answers:
miskamm [114]4 years ago
6 0

The correct answer is 92.96 million MI.

STatiana [176]4 years ago
3 0
92.96 million miles !
You might be interested in
How do you balance S8 +O2 = SO3
Alik [6]

Answer:

You would count how many atoms you have and then write them out like this

s = 8     s=1

o =  2     o =3

and then balance it out by putting coefficients.

Explanation:

3 0
3 years ago
Explain what the name carbohydrate might indicate about the chemical composition of sugars
lana [24]

The name carbohydrate indicate chemical composition of sugars, as carb means carbon and hydrate means hydrogen and oxygen.

Carbohydrate indicates the presence of carbon, hydrogen and oxygen of which sugar molecule is made up of.

Carbohydrate can be defined as naturally occuring molecules that is made of carbon,  hydrogen and oxygen.


6 0
4 years ago
Read 2 more answers
A sample of sodium-24 decays to 1/16of its original size in 60 hours. What is the half-life of Na-24
zalisa [80]

Answer:

The correct answer is - 15 hours.

Explanation:

Half-life an element is the time required to decay the half amount of the initial amount of the element and is represented by t1/2.

The formula for the calculating initial amount

n(i)=n(r)⋅2^n

where

n(i) - the initial number of moles of element

n(r) - the number of moles remained amount after the given time

n - the number of periods,

=  time T, where T is the half-life.

n(i)=n(r)⋅2^n

n(i)/n(r) =2^n

1/16 =2^n

n= 4

The half life = 60/n

= 60/4

= 15 hours.

4 0
3 years ago
QUESTION 38What type of reaction is the following?4 Fe (8) + 3 O2 (g) → 2 Fe203 (s)double displacementdecompositionSynthesis (or
GalinKa [24]

1) Chemical equation.

4Fe+3O_2\rightarrow2FeO_3

2) Types of reaction.

In the reaction above, we can see that two different compounds get together to form a new compound. <em>This is called a synthesis or a combination.</em>

Decomposition: A compound is broken down into simpler compounds.

Combustion: A compound containing Carbon and Hydrogen combines with oxygen.

Double replacement: Positive and negative ions in two compounds switch places.

3 0
1 year ago
A lab uses nitric acid to determine the amount of minerals in a soil sample. What is the pH of the nitric acid used if it has a
Veronika [31]
We are given a compound, nitric acid which is used to determine the amount of minerals of a soil sample. The pH of the nitric acid used if its molarity is 0.001M is:

pH = -log[0.001]
pH = -[-3]
pH = 3

Therefore, the pH of the nitric acid is 3. 
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8 0
3 years ago
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