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Liula [17]
2 years ago
12

Which units can be used to measure length or distance? Check all that apply.

Chemistry
1 answer:
motikmotik2 years ago
8 0

Answer:

<u>M</u><u>eter,</u><u> </u><u>kilometer </u><u>&</u><u> </u><u>inch </u>- used to measure length or distance.

You might be interested in
The chemical formula for baking soda is NaHCO. Does baking soda contain metallic or non-metallic elements? Which one is which?
Fed [463]

Answer:

Both metals and non metals.

Explanation:

The correct formula of baking soda is NaHCO₃,

An element is considered to be metal if it is able to give electron easily due to very low ionization energy.

A non metal is ready to accept electron easily due to high electron affinity.

In sodium bicarbonate :

Na: Sodium : metal

H : Hydrogen: non metal (although placed with first group, alkali metals, in the periodic table as it readily loses electron like metals)

C: Carbon: Non metal

O : Oxygen : Non metal.

So the compound contains both metals and non metals.

3 0
3 years ago
At 25◦C a 4 L sample of H2 exerts a pressure of 5 atm. What pressure would the same sample exert in a 2 L container at 25◦C?
kykrilka [37]

Answer:

10 atm.

Explanation:

Using the combined gas law equation as follows;

P1V1/T1 = P2V2/T2

Where;

P1 = initial pressure (atm)

P2 = final pressure (atm)

V1 = initial volume (L)

V2 = final volume (L)

T1 = initial temperature (K)

T2 = final temperature (K)

According to the information provided in this question,

P1 = 5 atm

P2 = ?

V1 = 4L

V2 = 2L

T1 = 25°C = 25 + 273 = 298K

T2 = 25°C = 298K

Using P1V1/T1 = P2V2/T2

5 × 4/298 = P2 × 2/298

20/298 = 2P2/298

Cross multiply

298 × 20 = 298 × 2P2

5960 = 596P2

P2 = 5960 ÷ 596

P2 = 10 atm.

4 0
3 years ago
You wash dishes for a chemistry laboratory to make extra money for laundry. You earn 12 dollars/hour, and each shift lasts 75 mi
PIT_PIT [208]
You calculate the amount of loads of laundry as follows:

((6 x 0.25)/ load) x 10 loads = 15.00 total cost required for laundry 

<span>(6.00 / 60 min) x (75 min/shift) = 7.50 cost / shift </span>

15.00 / (7.50 / shift) = 2 loads of  laundry

Hope this answers the question.
4 0
3 years ago
Read 2 more answers
Activation energy is: A. The maximum amount of energy reactants can hold. B. The energy needed to begin breaking the bonds of pr
Arte-miy333 [17]

Activation energy is the energy needed to begin breaking the bonds of reactants and is denoted as option D.

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

These are the substances which take part in a chemical reaction and result in the formation of the product.

The activation energy is required as it breaks the bonds of the reactant thereby resulting in the product being formed. This therefore makes it the most appropriate choice.

Read more about Activation energy here brainly.com/question/5280701

#SPJ1

3 0
2 years ago
How many grams of NaOH are produced from 20 grams of Na2Co3
Mariulka [41]

Answer:

1400

Explanation:

4 0
3 years ago
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