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cupoosta [38]
3 years ago
9

A mineral can be scratched by an iron nail. What can you conclude?

SAT
2 answers:
Helga [31]3 years ago
7 0

Answer:

The hardness is more than 2.5.

Explanation:

might be a different questions answer but i hope it helped

koban [17]3 years ago
4 0

Answer:

Explanation:

Ur dad left

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What are the coefficients needed to balance this chemical reaction to show that matter is conserved? fe + cl2 → fecl3
motikmotik

Let a, b, and c be the coefficients in the balanced reaction:

a Fe + b Cl₂   →   c FeCl₃

Count the atoms that show up among the reactants and products. They should be equal on both sides:

Fe : a = c

Cl : 2b = 3c

Let c = 2. Then a = 2 and 2b = 6, so b = 3.

Then the balanced reaction is

2 Fe + 3 Cl₂   →   2 FeCl₃

5 0
3 years ago
What cause and effect relationships have to do with women in forensic science?
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3 years ago
Based on table s, an atom of which element has the strongest attraction for electrons in a chemical bond?.
nexus9112 [7]

Based on Table S, the atom of element that has the strongest attraction for electrons in a chemical bond from the options is Chlorine.

<h3>What is Electronegativity?</h3>

Electronegativity can be regarded as the tendency that is been associated to an atom for attraction of electrons to itself.

However, Fluorine is considered as the most electronegative element but based on Table S, Chlorine has the strongest attraction for electrons in a chemical bond .

THESE ARE THE OPTIONS

1 aluminum

2 chlorine

3 magnesium

4 sulfur

Learn more about Electronegativity at;

brainly.com/question/21636614

7 0
2 years ago
I just need some to answer these asap. due before midnight. answer it in your own words. Looking for answers so i can look at th
laila [671]

Answer:

. TRANSITIVE OR INTRANSITIVE VERB

If you accept something that you have been offered, you say yes to it or agree to take it.

किसी बात को स्वीकार करना/स्वीकार करना

I accepted his offer of employment. All those invited to the conference have accepted.

accept a gift/donation/

6 0
3 years ago
To compare the average amount of time that canadians and americans spend commuting, a researcher collects a sample of canadians
yKpoI14uk [10]

The standard error of the difference of sample means is 0.444

From the complete question, we have the following parameters

<u>Canadians</u>

  • Sample size = 50
  • Mean = 4.6
  • Standard deviation = 2.9

<u>Americans</u>

  • Sample size = 60
  • Mean = 5.2
  • Standard deviation = 1.3

The standard error of a sample is the quotient of the standard deviation and the square root of the sample size.

This is represented as:

SE = \frac{\sigma}{\sqrt n}

The standard error of the Canadian sample is:

SE_1 = \frac{2.9}{\sqrt{50}}

So, we have:

SE_1 = 0.41

The standard error of the American sample is:

SE_2 = \frac{1.3}{\sqrt{60}}

So, we have:

SE_2 = 0.17

The standard error of the difference of sample means is then calculated as:

SE= \sqrt{SE_1^2 + SE_2^2}

This gives

SE= \sqrt{0.41^2 + 0.17^2}

SE= \sqrt{0.197}

Take square roots

SE= 0.444

Hence, the standard error of the difference of sample means is 0.444

Read more about standard errors at:

brainly.com/question/6851971

5 0
2 years ago
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