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3 years ago

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How far does Mrs. Spencer live if she drives home with a speed of 1.5 kilometers and it takes her 25 minutes to get home? It’s f

or Science plzz help

1 answer:

lora16 [44]3 years ago

4 0

I belive you’ve written it wrong could u comment it correctly

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Please help me fast

alisha [4.7K]

Answer:

60.7 mole

Explanation:

for every 4 moles of iron 3 moles of oxygen is used.

So, moles of oxygen = $\frac{3 * 80.9}{4}$ = 60.675

4 0

2 years ago

Read 2 more answers

What fraction of 2 years is 10 months <br>

zzz [600]

Answer:

10/24

Simplified: 5/12

Explanation:

Well first, let's convert years into months

1 year = 12 months which means 2 years = 24 months

In fraction form we would write this as 10/24

If the question asks for it to be simplified, then simply

Both 10 and 24 evenly fit 2

Therefore, divide both the numerator and the denominator by 2

10 ÷ 2 / 24 ÷ 2

5/12

This can no longer be simplified

8 0

2 years ago

Which mineral group is composed of compounds that contain atoms of sulfur and one or more metals?

Oksi-84 [34.3K]

Answer:

The answer to your questions is: C. Sulfides

Explanation:

A. Phosphates these compounds do not have sulphur, they are composed by phosphate and oxygen, So this answer is wrong.

B. Sulfates are formed by sulphur and oxygen, not for a metal, then this is not the right answer.

C. Sulfides are molecules formed by a metal and sulphur, this is the anwser to the question.

D. Silicates are formed by sillicon and oxygen, this option is incorrect.

8 0

3 years ago

Sterling silver contains silver and copper metals. if a sterling silver chain contains 17.6g of silver and 2.40g of copper, what

Bogdan [553]

Answer:- 0.88

Solution:- Masses of silver and copper metals are given and we are asked to calculate the percentage of silver in the alloy.

mass percent of Ag = $(\frac{mass of Ag}{mass of alloy})*100$

Mass of Ag = 17.6 g

mass of Cu = 2.40 g

mass of alloy = 17.6 g + 2.40 g = 20.0 g

Let's plug in the values in the formula:

mass percentage of Ag = $(\frac{17.6}{20.0})*100$

mass percentage of Ag = 88%

So, the mass percentage of silver in sterling silver is 88% and in decimal form it is 0.88.

7 0

3 years ago

A sample of a gas is kept at constant pressure while

Ahat [919]

Explanation:

here's the answer to your question

5 0

2 years ago