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Minchanka [31]
3 years ago
12

5. Calcium-40 and Calcium-42 both share the same

Chemistry
1 answer:
gayaneshka [121]3 years ago
6 0
They share the same number or protons
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When vinegar is added to some marble chips ( calcium carbonate) bubbles of gas are observed, what gas is produced and how can it
Scrat [10]

Answer:

By passing the gas through lime water

Explanation:

The equation of the reaction of vinegar with  calcium carbonate in the form of marble chips is shown below;

CaCO3(s) + 2CH3COOH(aq) ---------> Ca(CH3COO)2(aq) + H2O(l) + CO2(g).

We can see from the reaction equation that the gas produced is carbon dioxide. This gas is identified by passing the gas through lime water. If lime water turns milky, then the gas is truly carbon dioxide.

7 0
3 years ago
A type of rock that undergoes changes because of heat and pressure
raketka [301]

Answer:

metamorphic rocks

Explanation:

metamorphic rocks are made from the pressure and heat "metamorphic" comes from greek and it stands for "to change form"

6 0
3 years ago
Question 15 of 35
Solnce55 [7]

The statements that describe how the pond turned into the bog is as follows: Large water plants grew in shallow water around the edge of the pond.

<h3>What is a pond?</h3>

Pond is an inland body of standing water, either natural or man-made, that is smaller than a lake.

A bog is an area of decayed vegetation (particularly sphagnum moss) which forms a wet spongy ground too soft for walking.

This means that a pond can become a bog when existing plants in the pond decays until the land becomes soft.

Therefore, the statements that describe how the pond turned into the bog is as follows: Large water plants grew in shallow water around the edge of the pond.

Learn more about ponds and bogs at: brainly.com/question/9715563

#SPJ1

7 0
2 years ago
How much heat energy is needed to raise the temperature of 59.7g of cadmium from 25°C to 100°C? The specific heat of cadmium is
labwork [276]
     Using the Fundamental Equation of Calorimetry, we have:

Q=mc\Delta T \\ Q=59.7.0.231.(100-25) \\ \boxed {Q=1034.3025J}      

If you notice any mistake with my english, please know me, because I am not native.
7 0
4 years ago
How is thermal energy apart of weather changing
kirza4 [7]

Answer:

Heat, in the form of thermal energy, naturally moves from warmer substances to colder ones. When the ocean is warmer than the atmosphere, it transfers heat — through conduction and radiation — to make the air warmer. ... This redistributes thermal energy and causes changes in the weather.

3 0
3 years ago
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