All STEM subjects require ________________ skills. a. Same b. Different

But in your own words

8_murik_8 [283]

Answer:

gametes are sperm and an egg individually. when the gametes come together and fertilize, they form a zygote.

6 0

3 years ago

What type of lens is shown -covex lens -this isnt a lens concave lens

sleet_krkn [62]

$\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}$

Actually Welcome to the Concept of the Lens and Ray Optics.

We must understand the Concept that,

1.) When a beam of parallel light pass through a Convex lens, all the rays get deviated and converges to a special point at the axis that is a Focus.

2.) When a beam of light passes through the Concave lens,the light beams diverge from one another forming a virtual focus in the primary side of lens,

Hence the above given diagram beam rays are diverging, it is a CONCAVE LENS

answer is C.) Concave lens

6 0

3 years ago

If gas pressure is held constant and the temperature is decreased, gas volume will _____

saw5 [17]

Answer:

Increase

Explanation:

If temperature is held constant, the equation is reduced to Boyle's law. Therefore, if you decrease the pressure of a fixed amount of gas, its volume will increase.

5 0

3 years ago

A 13.00 g sample of citric acid reacts with an excess of baking soda What is the theoretical yield of carbon dioxide

viva [34]

Answer:

8.934 g

Step-by-step explanation:

We know we will need a balanced equation with masses and molar masses, so let’s gather all the information in one place.

M_r: 192.12 44.01

H₃C₆H₅O₇ + 3NaHCO₃ ⟶ Na₃C₆H₅O₇ + 3H₂O + 3CO₂

m/g: 13.00

For ease of writing, let's write H₃C₆H₅O₇ as H₃Cit.

(a) Calculate the moles of H₃Cit

n = 13.00 g × (1 mol H₃Cit /192.12 g H₃Cit)

n = 0.067 67 mol H₃Cit

(b) Calculate the moles of CO₂

The molar ratio is (3 mol CO₂/1 mol H₃Cit)

n = 0.067 67 mol H₃Cit × (3 mol CO₂/1 mol H₃Cit)

n = 0.2030 mol CO₂

(c) Calculate the mass of CO₂

m = 0.2030 mol CO₂ × (44.01 g CO₂/1 mol CO₂)

m = 8.934 g CO₂

4 0

3 years ago

What mass of oxygen would form from 2.30 moles of water?

Serggg [28]

Answer : The mass of oxygen will be, 36.8 grams

Solution : Given,

Moles of water = 2.30 moles

Molar mass of $O_2$ = 32 g/mole

First we have to calculate the moles of oxygen.

The balanced chemical reaction will be,

$2H_2O\rightarrow 2H_2+O_2$

From the balanced reaction we conclude that

2 moles of water decomposes to give 1 mole of $O_2$

2.30 moles of water decomposes to give $\frac{2.3}{2}=1.15$ moles of $O_2$

Now we have to calculate the mass of oxygen.

$\text{Mass of }O_2=\text{Moles of }O_2\times \text{Molar mass of }O_2$

$\text{Mass of }O_2=(1.15moles)\times (32g/mole)=36.8g$

Therefore, the mass of oxygen will be, 36.8 grams

8 0

3 years ago