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MrRissso [65]
3 years ago
13

How does our DNA cause us to have physical traits?

Chemistry
1 answer:
Cerrena [4.2K]3 years ago
6 0

Answer:

jkjkjkjkjkjkjkjkjkjkjkjkjkjkjkjk

Explanation:

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A car gets 28.0 miles/gallon of gas on the highway. What is this in<br> km/L?
lys-0071 [83]

Answer:

11.905 km/L

Explanation:

Given that,

A car gets 28.0 miles/gallon of gas on the highway.

We need to find the volume into km/L

We know that,

1 mile = 1.60934 km

Also,

1 gallon = 3.785 litre

So,

28\ \text{miles per gallon}=28\times \dfrac{1.60934\ km}{3.785\ L}\\\\=11.905\ \text{km/L}

Hence, the car get 11.905 km/L of the gas.

4 0
3 years ago
How many moles of iron can be recovered from 100.0 kg fe3o4?
Leokris [45]
Hello!

To know how many moles of iron can be recovered from 100 kg of Fe₃O₄ we'll need to use the molar mass of Fe₃O₄ and apply the conversion factor to go from kg of Fe₃O₄ to moles of Fe in the following way:

100 kg Fe_3O_4* \frac{1000 g}{1 kg}* \frac{1 mol Fe_3O_4}{231,533 g Fe_3O_4}* \frac{3 mol Fe}{1 mol Fe_3O_4}=1192,68 moles Fe

So, theoretically, one could recover 1192,68 moles of Fe from 100 kg of Fe₃O₄

Have a nice day!


5 0
3 years ago
Read 2 more answers
Wes melted some cheese over some tortilla chips to make nachos.
natima [27]

Answer:

a

Explanation:

Because the mass would stay the same and the flavor did not change and neither did the color so the shape is the only thing that changed

4 0
3 years ago
How many grams of NO can be made from 50 g of NH3?<br><br> 4 NH3 + 5 O2 → 6 H2O + 4 NO
Evgen [1.6K]
0.08 because 4mol NO divided by 50g gives you your answer
4 0
2 years ago
2C2H2 + 5O2 → 4CO2 + 2 H2O How many grams of CO2 are required to react with exactly 3.00 mol of O2? 106 g 132 g 165 g 76.8 g
cricket20 [7]

Hey there!:

Given the reaction:

2 C2H2 + 5 O2 → 4 CO2 + 2 H2O

5 moles O2 ------------- 4 moles CO2

3.00 moles O2 ----------  ( moles of CO2 ?? )

moles of CO2 = 3.00 * 4 / 5

moles of CO2 =  12 / 5

moles of CO2 = 2.4 moles

So, molar  mass CO2 = 44.01 g/mol

Therefore:

1 mole CO2 -------------- 44.01 g

2.4 moles CO2 ---------- ( mass of CO2 )

mass of CO2 = 2.4 * 44.01 / 1

mass of CO2 = 106 g

Answer A


Hope that helps!

8 0
4 years ago
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