It’s Anthurium
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Cut the plant back to the base and then feed it
it could be a few things i recommend smelling the soil for root rot. you can also smell the soil of a healthy plant and if your sick plant smells bad and like it's rotting it's probably root rot. that's harder to cure but i've done it a few times. soak the roots in a mix of hydrogen peroxide and water, take off all the brown squishy roots and put it in water to grow new healthy roots
Bah, ela está bem seca
Demasiado sol
Irregular watering could lead to this. Better to cut off all brown leaves, change soil, and feed it.
Cut off the dead leaves and water the plant more