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2 years ago

What causes “gaps in the rock record” and how is that described?

Chemistry

1 answer:

Mamont248 [21]2 years ago

5 0

Answer:

An unconformity is a widespread surface separating rocks above and below, which represents a gap in the rock record. Unconformities occur when either erosion wears away rocks, or rock deposits never form. Therefore, a time gap exists between when the rocks below the unconformity formed and when those above it formed.

Explanation:

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Nitric acid is often manufactured from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming of natural

hoa [83]

Answer: The net chemical equation is given below.

Explanation:

To determine the net chemical equation, we will look into the intermediate steps:

Step 1: Formation of ammonia from hydrogen and nitrogen gas.

$N_2(g)+3H_2(g)\rightarrow 2NH_3(g)$ ......(1)

Step 2: Formation of nitric acid from ammonia and oxygen gas.

$NH_3(g)+2O_2(g)\rightarrow HNO_3(g)+H_2O(g)$ .....(2)

The net chemical equation for the formation of nitric acid from hydrogen gas, nitrogen gas and oxygen gas follows by adding both the equations, we get:

$N_2(g)+2O_2(g)+3H_2(g)\rightarrow HNO_3(g)+H_2O(g)+NH_3(g)$

By Stoichiometry of the reaction:

1 mole of hydrogen gas reacts with 2 moles of oxygen gas and 3 moles of hydrogen gas to produce 1 mole of nitric acid, 1 mole of water and 1 mole of ammonia.

Hence, the net chemical equation is given below.

4 0

3 years ago

Cannot be chemically broken down into simpler substances

Nadusha1986 [10]

An element is the simplest form of matter that has a unique set of properties. Elements cannot be broken down into a simpler substance. Likewise, one element cannot be chemically converted into a different element.

HOPE THIS HELPS

7 0

2 years ago

Read 2 more answers

Ima 5% glucose solution, how many grams of glucose would be present per 100mL

Sedaia [141]

Percentage Weight-in-volume is defined as the number of grams of a solute in a 100 ml (milliliters) solution.

Percentage Weight-in-volume can tell us about the degree of concentration of a given solution.

The solute can be crystalline or non-crystalline in nature.

The number of grams of glucose present in a 5% glucose solution is 5 grams.

This question is based on a Percentage Weight-in-volume. The formula states that:

a% of a glucose solution = a grams of glucose in a 100 mL solution

Hence, 5% glucose solution = 5 grams of glucose / 100 mL solution

Therefore, the number of grams of glucose present in a 5% glucose solution is 5 grams.

To learn more, visit the link below:

brainly.com/question/8482854

6 0

1 year ago

PLEASE HELP!!!

alina1380 [7]

Answer:

I feel like it could lead to flooding

8 0

3 years ago

Lithium, sodium and potassium are all in group 1 of the periodic table. Which of these has the lowest boiling point?

kvv77 [185]

Answer:

Potassium

Explanation:

In group one of the periodic table both the melting and the boiling points usually decrease down the group.

Now, down the group, it's lithium that comes first, then sodium, then potassium.

Thus, among the 3, potassium is furthermost down the group by virtue of the factor it has the highest atomic number.

Therefore, we can say that potassium has the lowest boiling point among the 3.

5 0

2 years ago