All categories

3 years ago

I need help answering this question

Chemistry

2 answers:

Nataly [62]3 years ago

7 0

The answer is b and d because the number of protons and neutrons are together if you count on em

Gemiola [76]3 years ago

6 0

Answer:

b,d

Explanation:

An ion is an atom with a difference in the amount of protons and elektrons.

You might be interested in

A point of reference is anything that seems steady that is used compare the position of an object

Masja [62]

Answer:

True

Explanation:

hope it'll help!!

4 0

2 years ago

Read 2 more answers

Calculate the number of moles of C2H6 in 6.29×1023 molecules of C2H6.

Kipish [7]

1.05moles

Explanation:

Given parameters:

Number of molecules of C₂H₆ = 6.29 x 10²³molecules

Unknown:

Number of moles = ?

Solution:

The mole is the amount of substances that contains Avogadro's number of particles i.e 6.02 x 10²³

To find the number of moles:

number of moles = $\frac{number of particles}{Avogadro's number}$

number of moles = $\frac{6.29 x 10^{23} }{6.02 x 10^{23} }$

number of moles = 1.05moles

Learn more:

moles brainly.com/question/1841136

#learnwithBrainly

7 0

2 years ago

The chemical equation below is correctly balanced.

DIA [1.3K]

Answer:

44.8 L of O2 will react (option D)

Explanation:

Step 1: Data given

Number of moles of SO2 = 4.00 moles

STP = Pressure = 1 atm and temperature = 273 K

Step 2: The balanced equation

2 SO2(g) + O2(g) → 2 SO3(g)

Step 3: Calculate moles of O2

For 2 moles SO2, we need 1 mol O2 to produce 2 moles SO3

For 4.00 moles SO2 we need 4.00 / 2 = 2.00 moles O2

Step 4: Calculate volume of O2

For 1 mol we have a volume of 22.4 L

V = (n*R*T)/ p

V = (2.00 * 0.08206 * 273)/p

V = 44.8 L

For 2.00 moles we have a volume of 2*22.4 = 44.8 L

44.8 L of O2 will react (option D)

8 0

3 years ago

Rain washing away soil from a hillside

Aneli [31]

Answer:

deposition

Explanation:

8 0

2 years ago

A children's liquid cold medicine has a specific gravity of 1.23. If a child is to take 1.5 tsp in a dose, what is the mass (in

julia-pushkina [17]

Assume 1 tsp is approximately can hold 5 mL liquid.

Given the dose of medicine = 1.5 tsp

Converting 1.5 tsp to mL:

$1.5 tsp * \frac{5 mL}{1 tsp}$ = 7.5 mL

Given the specific gravity of the medicine = 1.23

That means density of the medicine with respect to water will be 1.23

As the density of water is 1 g/mL

We can take density of the medicine to be 1.23 g/mL

Calculating the mass of medicine in grams:

$7.5 mL * \frac{1.23 g}{mL} =9.225 g$

9.225 g medicine is present in one dose.

3 0

2 years ago

Read 2 more answers