Which statement correctly describes how hydrolysis causes chemical weathering?(1 point)
Responses
Hydrolysis is a chemical reaction that occurs when water reacts with minerals in rocks, breaking them down and forming new substances. This process can cause chemical weathering by weakening the structure of the rock and making it more susceptible to erosion.
Does it produce clay or carbonic acid
Hydrolysis primarily produces clay minerals through the chemical reactions between water and certain minerals in rocks. However, it does not directly produce carbonic acid. Carbonic acid can be produced through the reaction of carbon dioxide (CO2) with water, which can then contribute to chemical weathering processes.
Which is responsible for the formation of rust on metals?(1 point)
Responses
oxidation
oxidation
carbonic acid
carbonic acid
acid rain
acid rain
hydrolysis
hydrolysis
oxidation
How does air pollution impact chemical weathering?(1 point)
Responses
Pollutants cover rocks with a toxic layer that weakens them.
Pollutants cover rocks with a toxic layer that weakens them.
Pollutants mix with air and water to make acid rain.
Pollutants mix with air and water to make acid rain.
Pollutants prevent carbon from mixing with water.
Pollutants prevent carbon from mixing with water.
Pollutants react with minerals inside rocks and weaken them.
Pollutants react with minerals inside rocks and weaken them.
Pollutants mix with air and water to make acid rain.
What products are produced when water reacts with sodium in rocks?(1 point)
Responses
salt solution and iron oxide
salt solution and iron oxide
clay minerals and calcium carbonate
clay minerals and calcium carbonate
salt solution and clay minerals
salt solution and clay minerals
clay minerals and iron oxide
salt solution and clay minerals
Use the additive inverse to find 8.76−26.54
The additive inverse of a number is the value that, when added to that number, equals zero. In this case, the additive inverse of 26.54 would be -26.54.
Therefore, to find the result of 8.76 - 26.54, we can rewrite the subtraction as an addition problem with the additive inverse:
8.76 + (-26.54) = -17.78
So, 8.76 - 26.54 is equal to -17.78.
Use the additive inverse to find −1223−(−856). Write the answer as a mixed number
To find the sum of -1223 and -(-856), we can rewrite the subtraction as an addition problem with the additive inverse of -856:
-1223 + (-(-856))
To change the double negative subtraction to an addition, we need to change the sign of the second number:
-1223 + 856
Now we can add the numbers:
-1223 + 856 = -367
So, -1223 - (-856) is equal to -367.
Writing the answer as a mixed number, we have -367 = -365 - 2.
Therefore, the answer as a mixed number is -365 2/1.
Use the additive inverse to find −12 2/3−(−8 5/6). Write the answer as a mixed number
To find the difference between -12 2/3 and -8 5/6 using the additive inverse, we rewrite the subtraction as an addition problem with the additive inverse of -8 5/6:
-12 2/3 + (-(-8 5/6))
To change the double negative subtraction to an addition, we change the sign of the second number:
-12 2/3 + (8 5/6)
Now we can add the numbers:
-12 2/3 + 8 5/6 = -4 5/6
So, -12 2/3 - (-8 5/6) is equal to -4 5/6.
Therefore, the answer as a mixed number is -4 5/6.
-12 2/3 - (-8 5/6)=
To solve -12 2/3 - (-8 5/6), we first have to change the subtraction of a negative number to addition:
-12 2/3 + 8 5/6
Now we can find a common denominator to add the fractions:
The common denominator of 3 and 6 is 6.
Converting -12 2/3 to an improper fraction, we have -38/3.
Converting 8 5/6 to an improper fraction, we have 53/6.
Now we can add the fractions:
-38/3 + 53/6
To find the common denominator, we multiply the denominators: 3 * 6 = 18.
- (38/3 * 6/6) = - 228/18.
(53/6 * 3/3) = 159/18.
Now we can add the fractions:
- 228/18 + 159/18 = -69/18
Simplifying the fraction, we can divide both the numerator and denominator by their greatest common divisor, which is 3:
-69/18 can be simplified to -23/6.
Therefore, -12 2/3 - (-8 5/6) equals -23/6 or -3 5/6.
Use the additive inverse to find −123.45−(−234.76)
To find the sum of -123.45 and -(-234.76), we can rewrite the subtraction as an addition problem with the additive inverse of -234.76:
-123.45 + (-(-234.76))
To change the double negative subtraction to an addition, we need to change the sign of the second number:
-123.45 + 234.76
Now we can add the numbers:
-123.45 + 234.76 = 111.31
So, -123.45 - (-234.76) is equal to 111.31.
Therefore, -123.45 - (-234.76) equals 111.31.
Use the additive inverse to find −24 4/5−6 7/10.
To find the difference between -24 4/5 and -6 7/10 using the additive inverse, we rewrite the subtraction as an addition problem with the additive inverse of -6 7/10:
-24 4/5 + (-(-6 7/10))
To change the double negative subtraction to an addition, we change the sign of the second number:
-24 4/5 + (6 7/10)
Now we can add the numbers. To add the whole numbers, we have:
(-24 + 6) = -18
To add the fractions, we need to find a common denominator. The common denominator of 5 and 10 is 10.
Converting 4/5 to an equivalent fraction with a denominator of 10, we have 8/10.
Converting 7/10 to an equivalent fraction with a denominator of 10, we have 7/10.
Now we can add the fractions:
(-18 + 6) + (8/10 + 7/10) = -12 + 15/10
Simplifying 15/10, we have 1 5/10 or 1/2.
Therefore, -24 4/5 - (-6 7/10) equals -18 1/2.
Solve the mathematical problem involving absolute value.
21÷3+4+|2−3|
To solve the mathematical problem involving absolute value, we can follow the order of operations:
First, we evaluate the absolute value expression:
|2 - 3| = |(-1)| = 1
Next, we perform the division:
21 ÷ 3 = 7
Now, we add the remaining numbers:
7 + 4 + 1 = 12
Therefore, the solution is 12.
Solve the mathematical problem involving absolute value.
|(1/2)(−8)|+|10−4|
To solve the mathematical problem involving absolute value, we can follow the order of operations:
First, we evaluate the expression inside the first absolute value:
|(1/2)(-8)| = |(-4)| = 4
Next, we evaluate the expression inside the second absolute value:
|10 - 4| = |6| = 6
Now, we add the two absolute value results:
4 + 6 = 10
Therefore, the solution is 10.