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hram777 [196]
2 years ago
8

How is Earth's surface most likely to change when a river flows across a steep landscape over time?

Chemistry
2 answers:
prisoha [69]2 years ago
5 0

Answer:

it was c

Explanation:

ANTONII [103]2 years ago
4 0

Answer:c

Explanation:

A valley will be carved out due to erosion.

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A metallurgist is making an alloy that consists of 325 grams of chromium (Cr) and 2.5 kg of iron (Fe). Find the total mass of th
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Answer:- Mass of the alloy is 2.8 kg.

Solution:- Mass of Cr in the alloy is 325 g and mass of Fe in the alloy is 2.5 kg. Mass of alloy would be the sum of masses of constituent metals.

Masses of the metals are not in the same units. So, we need to make the units equal. The want answer in kg so let's convert mass of Cr from g to kg.

Since, 1000 g = 1 kg

So, 325g\frac{1kg}{1000g}

= 0.325 kg

Mass of alloy = mass of Cr + mass of Fe

mass of alloy = 0.325 kg + 2.5 kg = 2.825 kg

If we consider significant figures then as per the rules, the answer should not have more than one decimal place.

So, 2.825 kg is round off to 2.8 kg and hence the mass of the alloy is 2.8 kg.

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2 years ago
The smallest unit of an element that retains all the characteristics of that element is called a(n)
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<span>The smallest unit of an element that retains all the characteristics of that element is called an A. atom.
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3 years ago
What do calcium chloride, sodium carbonate, calcium carbonate, and potassium carbonate all have in common? (other than they reac
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What is considered to be an unsafe level of lead in flint michigan water?
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