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Vesnalui [34]
3 years ago
13

Choose the scientific question

Chemistry
1 answer:
Tanya [424]3 years ago
6 0

D: How does changing the temperature affect how Baking soda and vinegar react

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Which unit is used to measure mass in the metric system
erastova [34]
The answer is Gram :) hope this helps
4 0
3 years ago
Read 2 more answers
How are elements labeled on the periodic table that have the same number of<br> valence electrons?
aksik [14]

Answer:

Explanation:

Elements that have most similar properties were placed in the same group on the periodic table and this is done based on the number of valence electron each of the element posses which allow them reach in a similar manner as a member of the same family. A group of element is placed on a a vertical column of the periodic table.

For all element with one valence electron they are labelled with 1A on the group, and are usually the first column followed by 2A until group 8.

1A element are known to be very reactive and form compounds with similar properties with other elements.

8 0
3 years ago
if you had to explain to someone the difference between heat and temperature, how could you use one of the following to demonstr
Rainbow [258]

Answer:

We associate paper money or points in video games, as molecules that make a heat transfer or an increasin in its temperature.

Explanation:

The meaning of heat is associated with an energy transfer, where for example if we put a spoon in a cup of hot drink, the drink will be transferring heat to the spoon. It is a transfer of energy between two bodies due to a difference between their temperatures.

Temperature is associated with the movement of kinetic energy of the molecules. When the temperature is higher, the kinetic energy is higher, so as more detained they are, temperature will be lower.

If we take paper money as molecules, the greater movement of money explains that we have an increase in temperature (we would be hot), even if we think of video games, for example gambling where as more points we gain, we generate an increase in the movement of "molecules".

When we use paper money to buy something we are doing a heat transfer.

We can associate terms to the Thermodynamic where

Heat = Internal energy + work

For clearance would be

Internal energy = Heat - Work

The money we use less the work we do keeps our internal energy. If in a gambling video game, we earn points over and over again, when withdrawing the prize we perform "heat transfer".

4 0
3 years ago
What is the pH of a 1 ´ 10-5 M KOH solution?
melisa1 [442]
KOH -------------> K⁺   +  OH⁻

pOH = - log [ OH⁻ ]

pOH = - log [ 1 x 10⁻⁵ ]

pOH =  5

pH + pOH = 14

pH + 5 = 14

pH = 14 - 5

pH = 9

hope this helps!

3 0
3 years ago
Which two rocks are primarily composed of a mineral that bubbles with acid?
sergij07 [2.7K]

Answer:

chalk bubbles with vinegar

3 0
2 years ago
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